Icannos/chess_studies huggingface dataset:
[Event "Budapest"]
[Site "?"]
[Date "1950.??.??"]
[Round "1"]
[White "Bronstein"]
[Black "Stahlberg"]
[Result "0-1"]
[Annotator "04: Rook against Bishop or Knight"]
[ECO "C93"]
[EventDate "1968.??.??"]
[PlyCount "92"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The exchange offset by a pawn and a preponderance in the centre } 1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4 c5 7. Bxe7 Qxe7 8. Nb5 O-O 9. Nc7 cxd4 10. Nxa8 f6 11. Qxd4 Nc6 12. Qd2 fxe5 13. O-O-O Nf6 14. f3 Qd6 15. Ne2 Bd7 16. Nc3 Rxa8 { It is a well know fact that the owner of a
strong pawn centre often gets automatic attacking chaces. The attempt to
achieve such a centre by an Exchange sacrifice is nothing new, and in practise
it has been repeatedly successful. Nevertheless, its correctness must be
questioned as we shall show in the further course of this game. } 17. Ne4 { Logical and strong. To give the opponent no attacking chacens, White is aiming
to exchange minor pieces. } 17... Qe7 18. Nxf6+ Qxf6 19. Bb5 Nb8 $1 { Understandably Black prefers to exchange a bad Bishop rather than a Knight } 20. Qb4 Bxb5 21. Qxb5 Qf7 22. c4 { The pawn centre is demolished. White's last move
has weakend d4, and his King's position is too open for hims to achieve his
aims } ( 22. c3 ) 22... Nc6 $1 ( 22... Qc7 23. Qe8# ) ( 22... dxc4 23. Rd8+ ) 23. cxd5 Nd4 24. Qd3 ( 24. dxe6 $4 Qf4+ ) ( 24. Rxd4 exd4 25. dxe6 Qxe6 26. Kb1 Qg6+ $17 ) 24... exd5 25. Rhf1 { The only possibility of undermining the
position of the Knight consists of the pawn advance Pf4 } 25... Qf4+ 26. Kb1 Rd8 27. g3 $1 { With this pawn offer, White succeds in carrying out his plan } 27... Qxg3 28. f4 Qxd3+ 29. Rxd3 Nc6 30. fxe5 Nxe5 31. Rd4 Nc6 32. Rdf4 Ne5 { Black can not allow the invasion at f7. In material, Black has not done
badly, with two pawns for the Exchange; but positionally things are not so
good for him, with the White rooks connected, and the open files at their
disposal. White is justified in playing for a wing } 33. Rf5 $2 ( 33. Rd4 Nc6 34. Rd2 d4 35. Rdf2 Ne5 ) 33... Nc4 34. R1f2 $2 ( 34. R5f2 d4 35. b3 Ne3 36. Re1 d3 37. Rd2 ) 34... d4 35. b3 $2 ( 35. Rc5 $1 d3 36. Rxc4 d2 37. Rxd2 Rxd2 38. Rc8+ Kf7 39. Rc7+ Ke6 40. Rxb7 Rh2 41. Rb4 $11 ) 35... d3 $1 36. bxc4 d2 37. Rxd2 Rxd2 38. Rb5 b6 39. Re5 Rd4 40. c5 Rxh4 41. Re8+ Kf7 42. Ra8 Rb4+ 43. Ka1 bxc5 44. Rxa7+ Kf6 45. Ra5 g5 46. Rxc5 g4 0-1
[Event "Buenos"]
[Site "Buenos"]
[Date "1927.??.??"]
[Round "3"]
[White "Capablanca"]
[Black "Alekhine"]
[Result "1-0"]
[Annotator "04: Rook against Two Minor pieces"]
[ECO "A47"]
[PlyCount "83"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. O-O cxd4 6. Nxd4 Bxg2 7. Kxg2 d5 8. c4 e6 9. Qa4+ Qd7 10. Nb5 Nc6 11. cxd5 ( 11. Bf4 e5 ) 11... exd5 12. Bf4 Rc8 13. Rc1 Bc5 $2 14. b4 $1 Bxb4 ( 14... Nxb4 15. Nd6+ Bxd6 16. Rxc8+ ) ( 14... Be7 15. Nd4 ) 15. Rxc6 Rxc6 16. Qxb4 Ne4 17. Nd2 Nxd2 18. Qxd2 $2 O-O { Black has a pawn as well as a Rook against two minor piece, but in
practise this is seldom enough. It is certain that the minor-piece player must
go for the attack, for in that way he will make most of his advantage. The
Rook player will genereally welcome  exchanges, since it is in an endgame that
he will have drawing chances } 19. Rd1 Rc5 20. Nd4 Re8 21. Nb3 Rcc8 22. e3 ( 22. Qxd5 Qxd5+ 23. Rxd5 Rxe2 24. Rd2 Rxd2 25. Bxd2 Rc2 $17 ) 22... Qa4 23. Qxd5 { White, being committed to the attack, can allow Black two unitied
passed pawns on the Queenside. From now on Black's attention will be divided
between the two winge, and he will be unable to organize the defence of his
King } 23... Rc2 ( 23... Qxa2 24. Ra1 ) 24. Rd2 Rxa2 { The best chance } ( 24... Qxa2 25. Qd7 Rf8 26. Rxc2 Qxc2 27. Nd4 Qc5 28. Nf5 -- 29. Ne7+ Kh8 30. Bd6 -- 31. Ng6+ ) 25. Rxa2 Qxa2 26. Qc6 Rf8 27. Nd4 Kh8 ( 27... Qa5 28. Bd6 Rd8 29. e4 g6 30. Be7 Rxd4 31. Qc8+ Kg7 32. Qf8# ) ( 27... Rd8 28. e4 h6 29. Be5 f6 30. Ne6 $18 ) ( 27... h6 28. Bd6 Rd8 29. e4 Qd2 30. Nf5 g6 31. Bf4 Qd7 32. Qf6 gxf5 33. Bxh6 Qd4 34. e5 Qe4+ 35. f3 Qe2+ 36. Kh3 Qf1+ 37. Kh4 Rd4+ 38. Kg5 ) 28. Be5 f6 { This weakening should be avoided if possible } ( 28... Rg8 29. Bxg7+ ( 29. e4 f6 ( 29... Qb2 30. Nf3 Qb3 31. Ng5 f6 32. Qb5 Qa2 33. Qa4 $18 ) ( 29... Qa5 30. Nf3 f6 ( 30... Qc5 31. Ng5 Qe7 32. Qh6 $1 ) 31. Bd4 Rf8 ( 31... h6 32. e5 fxe5 33. Bxe5 Kh7 34. Qc2+ Kh8 35. Qg6 ) 32. Qd6 Kg8 33. Qe6+ Kh8 34. e5 fxe5 35. Nxe5 $18 ) 30. Bxf6 gxf6 31. Qxf6+ Rg7 32. Ne6 $18 ) 29... Rxg7 30. Qe8+ Rg8 31. Qe5+ Rg7 32. Nf5 f6 33. Qxf6 Qd5+ 34. Kh3 Qd7 $11 35. Qf8+ ) 29. Ne6 Rg8 30. Bd4 h6 ( 30... a5 31. Nxg7 Rxg7 32. Qxf6 Qg8 33. h4 ) 31. h4 Qb1 32. Nxg7 { The decisive combination. White has
carried out his plan with great singleness of purpose } 32... Qg6 ( 32... Kxg7 33. Qxf6+ Kh7 34. Qf7+ ) ( 32... Rxg7 33. Qxf6 Qe4+ 34. Kg1 ( 34. Kh2 { Further away from the a-pawns } ) 34... Qb7 ( 34... Qb1+ 35. Kh2 Qh7 36. Qf8+ ) 35. Qxh6+ Kg8 36. Qxg7+ Qxg7 37. Bxg7 Kxg7 $18 ) 33. h5 Qf7 34. Nf5 Kh7 35. Qe4 Re8 36. Qf4 Qf8 37. Nd6 Re7 38. Bxf6 Qa8+ 39. e4 Rg7 40. Bxg7 Kxg7 41. Nf5+ Kf7 42. Qc7+ { mate in two } 1-0
[Event "Bled"]
[Site "?"]
[Date "1931.??.??"]
[Round "?"]
[White "Tartakower"]
[Black "Bogolyubov"]
[Result "0-1"]
[Annotator "04: Rook against Two Minor pieces"]
[ECO "D13"]
[PlyCount "112"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The minor piece side posses two Bishops } 1. d4 d5 2. c4 c6 3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4 e6 7. e3 Be7 8. Bd3 O-O 9. a3 Nh5 10. Be5 f6 11. Ng5 g6 12. Nxh7 fxe5 ( 12... Kxh7 13. Qxh5+ Kg8 14. Qxg6+ Kh8 15. Qh7# ) 13. Nxf8 Bxf8 14. Bxg6 Nf6 { White has a Rook and two pawns against two
minor pieces; moreover, Black's Kingside is completely demolished. One would
think that White must hace more than sufficient compensation. There is
nevertheless one factor in the position which will make White's game very
difficult - namely, Black's two Bishops } 15. g4 Nh7 16. h4 Bg7 17. Bxh7+ { White is compelled by the pressure on d4 to take this drastic measure } ( 17. dxe5 Nxe5 18. Bc2 Nc4 19. Qd3 Nf8 20. O-O-O Bd7 { strong attack } ) 17... Kxh7 18. Qc2+ Kh8 19. dxe5 Nxe5 20. O-O-O Bd7 21. h5 Rc8 22. h6 Bf8 23. g5 { Black is not interested in winning the g-pawn, thereby giving
the White Rooks an opportunity of showing their paces on the g-file. Rather he
concentrates all his strength against White's King position, the two Bishops
giving invaluable service } 23... Be8 24. f4 Bg6 25. e4 Nc4 ( 25... Bxe4 26. Qxe4 dxe4 27. Rxd8 Rxd8 28. fxe5 ) 26. Qd3 Qb6 { Forcing White to simplify } ( 26... Bxe4 27. Qd4+ e5 28. Qxe4 dxe4 29. Rxd8 Rxd8 30. f5 $13 ) 27. Qd4+ Qxd4 28. Rxd4 Bc5 29. f5 $1 { White's best counterchance } ( 29. Rdd1 Be3+ $19 ) 29... exf5 { Black prefers to keep his Bishop pair } ( 29... Bxd4 30. fxg6 Be3+ $2 ( 30... Nxa3 31. bxa3 Bxc3 ) 31. Kb1 Nxa3+ 32. bxa3 Rxc3 33. g7+ Kh7 34. g6+ $18 ) 30. Rxd5 fxe4 31. Kb1 { The Knight must be unpinned } ( 31. Kd1 $4 Ne3+ ) 31... e3+ 32. Ka1 Nb6 33. Re5 Bd4 34. Re6 Bf5 ( 34... Rxc3 35. Rxg6 $1 ( 35. bxc3 Bxc3+ 36. Ka2 Bf7 ) ( 35. Rxb6 axb6 36. bxc3 Bxc3+ 37. Ka2 e2 ) ) 35. Re7 Nc4 36. Rh4 Nxa3 $1 { Notice how Black is always careful to keep his two bishop,
making no use of the chance of winning White's c-pawn } 37. bxa3 Bxc3+ 38. Ka2 Bd2 39. Rf4 Bh7 40. Rd4 ( 40. Rff7 Bg8 ) 40... Bg8+ 41. Kb1 Bh7+ 42. Ka2 Rg8 43. Rdd7 Bf5 44. Rxb7 a5 45. a4 ( 45. Rb3 Bc2 ) 45... Bd3 46. Rbd7 e2 47. Rxd3 e1=Q 48. Rxe1 Bxe1 49. Rd5 Kh7 50. Kb3 Kg6 51. Kc4 Rb8 52. Rb5 Re8 53. Rd5 Re4+ 54. Rd4 Rxd4+ 55. Kxd4 Bd2 56. Kc4 Bxg5 0-1
[Event "Goetborg"]
[Site "?"]
[Date "1920.??.??"]
[Round "?"]
[White "Spielmann"]
[Black "Moller"]
[Result "1-0"]
[Annotator "05: Queen against Two Minor pieces"]
[ECO "C33"]
[PlyCount "55"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The minor pieces have an attack on the king } 1. e4 e5 2. f4 exf4 3. Qf3 Nc6 4. c3 Nf6 5. d4 d5 6. e5 Ne4 7. Bb5 $2 Qh4+ 8. Kf1 g5 9. Nd2 Bg4 10. Nxe4 Bxf3 11. Nxf3 Qh6 12. Nf6+ Kd8 { Under normal circumstances the two minor
pieces will clearly get the worst of it against the Queen; but the purpose of
this example is to show that given favourable conditions the minor pieces can
make things very difficult - say difficult, indeed, that the Queen may even
have to pay the piper.   Here White has some lead in development, while the
Black king must stay in the middle for the time being. To make use of these
factors, White must attack at once. } 13. h4 $1 Be7 ( 13... g4 14. Ng5 Qg6 15. Bxf4 ) 14. Nxg5 Qg6 15. Nxd5 Bxg5 16. hxg5 Qc2 { Queen is not well placed } ( 16... Qxg5 { stronger } ) 17. Be2 Ne7 ( 17... Kd7 18. Bg4+ ) 18. Nxf4 c5 { Black takes his task to lightly } ( 18... c6 ) 19. Rh3 $1 cxd4 $2 ( 19... Kc7 20. d5 ) ( 19... Qf5 20. g4 Qd7 21. d5 $13 ) 20. Rd3 Kc7 ( 20... Qa4 21. Rxd4+ ) 21. Bd1 Qxd3+ 22. Nxd3 dxc3 23. bxc3 Rad8 24. Be2 Nf5 25. Bf4 Kb8 26. Rb1 b6 27. e6+ Kc8 28. Ne5 1-0
[Event "New York"]
[Site "?"]
[Date "1941.??.??"]
[Round "?"]
[White "Marshall"]
[Black "Halper"]
[Result "1-0"]
[Annotator "05: Queen against Two Minor pieces"]
[ECO "C44"]
[PlyCount "55"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Bc4 d6 6. Qb3 Qd7 7. Qxc3 $2 d5 8. exd5 Bb4 9. dxc6 Bxc3+ 10. Nxc3 bxc6 11. O-O { The game is open, so that
the Bishops come into their own all the better. For Black it is now essential
to finish development } 11... Ne7 $2 ( 11... Qf5 12. Re1+ Be6 ) ( 11... Nf6 12. Re1+ Kf8 13. Be3 h6 14. Bc5+ Kg8 15. Re7 { winning attack } ) 12. Bxf7+ Kf8 ( 12... Kxf7 13. Ne5+ { White has a better pawn structure and hence endgame } ) 13. Bb3 Bb7 14. Be3 Nf5 ( 14... Nd5 15. Bc5+ Kg8 16. Ne5 Qe6 17. Rae1 { Black is at a loss for a good continuation } 17... Re8 ( 17... Rd8 18. f4 h6 19. f5 Qf6 20. Ng6 Kh7 21. Ne4 { wins the queen } ) 18. Nxc6 { R. Fine } ) 15. Bc5+ Nd6 16. Nd4 { Black can not get his Rooks into play } 16... Re8 17. Rfe1 h5 { This loses the Exchange, so that White already has Rook and
bishop for the Queen } ( 17... Rxe1+ 18. Rxe1 h5 19. Ne6+ Kf7 20. Nxc7+ ) 18. Ne6+ Rxe6 ( 18... Kf7 19. Nxc7+ ) 19. Bxe6 Qd8 20. Re5 Rh6 { At last the Rook puts in an appearance, but it is far too late now } 21. Rae1 Bc8 22. Bb3 Bd7 23. Be3 Nf5 ( 23... Rh8 24. Bg5 ) ( 23... Rg6 24. Rxh5 Nf7 25. Bc5+ Kg8 26. Re7 Rf6 27. Ne4 ) 24. Bxh6 gxh6 25. Ne4 Kg7 26. Nc5 Kf6 ( 26... Bc8 27. Re8 Qd4 28. Rxc8 ) 27. Nxd7+ Qxd7 28. Be6 1-0
[Event "Amsterdam"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Kmoch"]
[Black "Prins"]
[Result "1-0"]
[Annotator "05: Queen against three minor pieces"]
[ECO "D97"]
[PlyCount "35"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ A well known position in the Grunfeld Defence } 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 b6 $2 8. e5 Be6 9. exf6 Bxc4 10. fxg7 Kxg7 11. Bxc4 { White dominats the game. An examination of the
position revelas that Black can undertake nothing, while hiw own position is
beset with perils.  It is noteworthy that it is the weakening produced by the
fianchetto which particularly hampers him. If only the b-pawn were unmoved,
his game might get be tenable. } 11... Nc6 12. Be3 Nb4 ( 12... Na5 ) 13. O-O Nc2 14. Rad1 Nxe3 15. fxe3 c5 { A blunder which puts an untimely end to the
fight. Even with best play the game could not have been saved in the long run. } 16. Ng5 $1 e6 17. Rxf7+ $1 Rxf7 ( 17... Kh6 18. Rxh7+ Kxg5 19. h4+ Kg4 20. Be2+ Rf3 ( 20... Kg3 21. Ne4# ) 21. Bxf3+ Kf5 22. Rf7+ Qf6 23. g4# ) 18. Nxe6+ 1-0
[Event "Amsterdam"]
[Site "?"]
[Date "1936.??.??"]
[Round "?"]
[White "Fine"]
[Black "Grunfeld"]
[Result "1-0"]
[Annotator "05: Queen against three minor pieces"]
[ECO "D39"]
[PlyCount "103"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 d5 2. Nf3 Nf6 3. c4 e6 4. Nc3 dxc4 5. e4 Bb4 6. Bg5 c5 7. e5 cxd4 8. Qa4+ Nc6 9. O-O-O Bd7 10. Ne4 Be7 11. exf6 gxf6 12. Bh4 Nb4 13. Qxb4 Bxb4 14. Nxf6+ Kf8 15. Rxd4 Qa5 16. Nxd7+ Ke8 17. Nf6+ Kf8 { Due to the insecure Black King, the minor-piece player here has a very
favourable game, if not an outrightwin } 18. Bxc4 ( 18. Ne5 h5 19. Ned7+ ( 19. Bxc4 Rc8 20. Kb1 Be7 21. Rhd1 Kg7 22. Ned7 ) 19... Kg7 20. Bxc4 Rhc8 21. Kb1 Bc3 22. Re4 Bxb2 23. Kxb2 Qd2+ 24. Kb1 b5 25. Bb3 Qd3+ 26. Ka1 Qc3+ $11 { Gereben-de Groot, Munich 1936 } ) 18... Rc8 19. Kb1 h5 20. Rhd1 Be7 21. Nd7+ { White parries the threat easily, still strengthening his position } ( 21. -- Bxf6 22. Bxf6 Qf5+ ) ( 21. -- Kg7 22. -- Rhd8 ) 21... Ke8 22. Bg3 { maintaining the pressure } ( 22. Bxe7 Kxe7 { only helping Black's development } ) 22... Rg8 23. h3 Rg7 24. a3 { An innocent looking move, but in reality a good one. The explanation is that
Fine intends to estabilsh a Knight or Bishop on f6, and must first move his
King to a2 to avoidQf5+ } 24... b5 { seeking counterplay } 25. Bb3 b4 ( 25... Qa6 26. Be5 Rxg2 27. Nf6+ Kf8 28. Nxh5 { some counterplay for Black } ) 26. axb4 Bxb4 27. Be5 Rxg2 28. Rxb4 $1 { diagonals } 28... Qxb4 29. Nf6+ Ke7 30. Rd7+ Kf8 31. Bd6+ Qxd6 32. Rxd6 Rxf2 33. Rd3 { With three pieces against Rook and three pawns, White has an easily won game } 33... Ke7 34. Nxh5 Rf1+ 35. Bd1 Rg8 36. Nd4 e5 37. Nc6+ Ke6 38. Ka2 Rxd1 39. Rxd1 Rg5 40. Nf4+ exf4 41. Nd4+ Kf6 42. Rf1 Ra5+ 43. Kb1 Ra4 44. Nf3 Re4 45. Re1 Re6 46. Rxe6+ fxe6 47. Kc2 e5 48. Kd3 Kf5 49. Nd2 Kg5 50. Ke4 Kh4 51. Kxe5 Kxh3 52. Kxf4 1-0
[Event "Saltsjobaden"]
[Site "?"]
[Date "1948.??.??"]
[Round "?"]
[White "Najdorf"]
[Black "Ragozin"]
[Result "0-1"]
[Annotator "05: Queen Against Rook and Bishop/Knight"]
[ECO "D98"]
[PlyCount "100"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4 8. Ng5 Nc6 9. d5 Ne8 10. h3 ( 10. dxc6 Bxc3+ 11. Qxc3 Qd1# ) 10... Ne5 11. Qb3 Bc8 12. Be2 c6 13. O-O cxd5 14. Nxd5 Nc6 15. Nf3 Nd6 16. Rd1 Be6 17. Qa3 Nxe4 18. Nf6+ Nxf6 19. Rxd8 Rfxd8 { Rook, Knight and pawn generally mean
full compensation for the Queen. In the present case there is a little
positional advantage as well, consisting of a lead in development sufficient
at least to ensure the advance of Black's centre pawn. The extra freeedom of
movement which must result from this gives Black the better chances } 20. Bd2 $2 { This enables Black to improve the placement of his Knight with gain of tempo. } ( 20. Bg5 ) ( 20. Be3 ) 20... Ne4 21. Be3 Nd6 22. Rc1 ( 22. Re1 Nf5 ( 22... Nc4 23. Bxc4 Bxc4 24. b3 Bd5 { Two bishops would being to pull their weight } ) 23. Bc1 ) 22... Nf5 23. Bf4 { This allows Black to advance his centre pawn with gain
of tempo. White however has not enough points of contact for forming a sound
plan since he exerts so little influence in the centre } ( 23. Bc4 { Pirc } 23... Bxc4 24. Rxc4 e5 ) ( 23. Bc5 b6 24. Be3 Bd5 ) ( 23. Ng5 Nxe3 ( 23... Bd5 24. Bf3 Nxe3 25. Qxe3 Bxb2 26. Rb1 Bd4 27. Qf4 $132 ) 24. Nxe6 Rd6 25. Nxg7 Nd5 26. Nh5 gxh5 { White reagins his pawn, attaining a material advantage } ) 23... Bd5 24. Bc4 Bxc4 25. Rxc4 e5 26. Bg5 ( 26. Bd2 { rather than drive the Rook to a better square } ) 26... Rd1+ 27. Kh2 h6 28. Rc1 Rd7 29. Be3 e4 { opens the diagonal for the Bishop, and sets up a
splendid strongpoint at d3 for the other pieces } 30. Ne1 Rad8 31. Bc5 ( 31. Bf4 g5 32. Be3 Be5+ 33. g3 Nxe3 34. Qxe3 f5 ) 31... Be5+ 32. g3 ( 32. Kg1 Rd2 33. Rb1 ( 33. Rc2 Rxc2 34. Nxc2 Rd1+ 35. Ne1 Rxe1# ) 33... Re2 ) 32... Rd2 { Wins a pawn } 33. Rc2 Bxg3+ 34. Kg2 { a cunning trap } 34... Be5 ( 34... Bxf2 35. Bxf2 e3 36. Qc3 exf2 37. Rxd2 fxe1=Q 38. Rxd8+ ) 35. Kf1 Rxc2 { This is an inexactitude. It was not necessary to relieve White of his poorly
placed Rook by exchange. } ( 35... Rd1 ) 36. Nxc2 Rd1+ 37. Ke2 ( 37. Kg2 Nh4# ) 37... Rb1 38. b4 Rb2 39. Kd1 Rb1+ 40. Kd2 Bf6 { initiating the decisive attack } 41. Bxa7 Ne5 42. Qa4 Nf3+ 43. Ke2 Ng1+ 44. Kd2 Nf3+ 45. Ke2 Nd6 46. Qd7 ( 46. -- b5 47. Qa5 Nc4 ) 46... Ng1+ 47. Ke3 Rd1 48. Nd4 Rd3+ 49. Kf4 Ne2+ 50. Kg4 ( 50. Nxe2 Rf3+ 51. Kg4 h5# ) 50... h5# 0-1
[Event "Zandvoort"]
[Site "?"]
[Date "1936.??.??"]
[Round "?"]
[White "Euwe"]
[Black "Grunfeld"]
[Result "1-0"]
[Annotator "05: Queen Against Rook and Bishop/Knight"]
[ECO "D28"]
[PlyCount "55"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The owner of the Queen is on the attack } 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 e6 5. Bxc4 Nf6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. Bb3 c4 10. Bc2 Nb4 11. Nc3 Nxc2 12. Qxc2 Bb7 13. d5 exd5 14. e4 Be7 15. e5 Nd7 16. Nxd5 O-O 17. Qf5 Nc5 18. Nf6+ Bxf6 19. Rxd8 Bxd8 { In contrast with
the previous examples, the respective chances are sharply defined. White must
attack the King, helped by his pawn on e5; Black must make use of the d-file
and his Queenside pawn majority. His possession of the outpost at d3 is
obviously an important trump } 20. Ng5 { Forcing Black to relinquish the Bishop
pair, for if he should weaken his King's position instead, White's material
advantage would soon be decisive. } 20... Bxg5 21. Bxg5 { The strong position of
this Bishop deprive Black of any opportunity of playing for control of the
d-file. The Bishop can't be repulsed except by pushing up the pawns which
protect the King } 21... Rfe8 ( 21... Be4 { defending the Kingside } ) 22. Re1 { preventing the manouvre } 22... Re6 23. Re3 Rae8 $2 { This must be considered the decisive mistake } ( 23... h6 24. Bf6 Nd7 ) 24. h4 h6 25. Bf6 $1 g6 ( 25... -- 26. Rg3 g6 27. Rxg6+ ) ( 25... gxf6 26. exf6 ) ( 25... Nd7 26. Rg3 Nxf6 27. exf6 Re1+ 28. Kh2 ) 26. Qf4 Kh7 27. Bg5 $1 f5 ( 27... hxg5 28. Qxf7+ Kh6 ( 28... Kh8 29. hxg5 ) 29. hxg5+ Kxg5 30. Rg3+ Kh6 31. f4 ) 28. exf6 { Black resigned, helpless against the many threats } 1-0
[Event "Match"]
[Site "?"]
[Date "1909.??.??"]
[Round "?"]
[White "Janowsky"]
[Black "Lasker"]
[Result "1-0"]
[Annotator "05: Queen against Two Rooks"]
[FEN "4rk2/1ppn1p1p/p2p1P2/8/5P2/1P3Q2/PBP2KPP/4r3 w - - 0 1"]
[PlyCount "19"]
[SetUp "1"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The Queen on the attack  It is true enough that two Rooks are generally
stronger than the Queen, but in positions where the player with the Rooks has
his King exposed, so that it can be checked from left and right, things are
different. The Queen's great mobility gives her all sorts of chances. The pawn
on f6 guarantees White a winning advantage. } 1. Qxb7 $2 ( 1. Qh5 { would have been decisive } 1... R8e2+ ( 1... R8e6 2. f5 R6e4 3. Bc3 R1e3 4. Qh6+ ) ( 1... R8e4 2. Qxh7 Ke8 3. h4 ) ( 1... R8e3 2. Bc3 { forces transition to an ending } ) 2. Qxe2 Rxe2+ 3. Kxe2 { easy endgame } ) 1... R1e2+ 2. Kf3 Rxc2 3. Bd4 a5 4. Qb5 Nc5 5. Qxa5 Nd3 6. Be3 ( 6. -- Ne1+ 7. Kg4 Rxg2+ ) 6... d5 7. Bd2 $1 { Because White had wandered off on a side track, the Black rooks were suddenly
becoming very active. } ( 7. -- Ne1+ 8. Qxe1 d4 9. Qb4+ c5 ) 7... c5 8. Kg3 Nc1 ( 8... d4 9. f5 Nc1 ( 9... -- 10. Bh6+ Kg8 11. Qb5 ) ( 9... Ne5 10. Bh6+ Kg8 11. Qb5 Rd8 12. Qf1 d3 13. Qe1 $1 d2 ( 13... Nc6 14. Qe3 ) 14. Bxd2 Rcxd2 15. Qxe5 ) 10. Bh6+ Kg8 11. Qb5 Rd8 12. Qf1 Nxa2 13. Qf4 $18 ) 9. Bxc1 Rxc1 10. Qd2 { Black's trump (the passed pawn) is gone } 1-0
[Event "Mahrisch-Ostrau"]
[Site "?"]
[Date "1923.??.??"]
[Round "?"]
[White "Euwe"]
[Black "Rubinstein"]
[Result "1-0"]
[Annotator "05: Queen against Two Rooks"]
[ECO "D05"]
[PlyCount "75"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The Rooks on the attack } 1. Nf3 d5 2. d4 Nf6 3. e3 e6 4. Bd3 c5 5. b3 Nc6 6. O-O Bd6 7. Bb2 O-O 8. a3 b6 9. Ne5 Bb7 10. Nd2 Qe7 11. f4 Rfd8 12. Rf3 Ne4 13. Rh3 f5 14. Bxe4 dxe4 15. Qh5 Bxe5 16. Qxh7+ Kf7 17. fxe5 Rh8 18. Qxh8 Rxh8 19. Rxh8 { To show their full strength, Rooks must cooperate and this cooperation
is not apparent. However, White is threatening to bring it about by bringing
his Queen rook to f4 } 19... Ba6 { The best countermove. This not only stops Rf1,
but also prevents the Knight from travelling via c4 to the dominating d6 post } 20. Nf1 Qd7 $2 { After this inferior move, White's advantage is decisively strengthened } ( 20... Bxf1 21. Rxf1 Qg5 $132 22. Rf4 cxd4 ) 21. Rd1 { A pawn sacrifice in the interests of better cooperation among White's pieces } 21... Nxe5 22. d5 $1 { Attacking the Knight so that Black cannot prevent the opening of the d-file! } 22... Ng4 23. dxe6+ Qxe6 24. Rhd8 { The aim is accomplished, and White now threatens to end the game with R1d7+ } 24... Bb5 25. c4 Be8 26. R1d5 f4 $1 { Black's best counterchance } ( 26... Nf6 27. Re5 ) 27. h3 ( 27. exf4 $2 e3 ) 27... fxe3 28. Ng3 e2 ( 28... Nf6 ) 29. Nxe2 Ne3 30. Rg5 g6 31. Nf4 Qe7 32. Rxg6 $1 Nf5 ( 32... Qxd8 33. Rg7+ Kf8 34. Ne6# ) 33. Rf6+ Kg8 34. Rxe8+ Qxe8 35. Rxf5 e3 36. Rg5+ Kh7 ( 36... Kf8 37. Ng6+ Kf7 38. Nh8+ Kf8 39. Re5 ) 37. Rh5+ Kg8 38. Rh8+ 1-0
[Event "Nuremberg"]
[Site "?"]
[Date "1906.??.??"]
[Round "?"]
[White "Chigorin"]
[Black "Forgacs"]
[Result "1-0"]
[Annotator "06: Vanished Centre"]
[ECO "C55"]
[PlyCount "73"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The significance of a lead in development (analysis by Dr. Tarrasch) } 1. e4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. Bc4 Nxe4 5. Nxe4 d5 6. Bd3 dxe4 7. Bxe4 Bd6 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 O-O { This example shows in striking fashion how a
small advantage can, with exact play, assume decisive significance } 11. Be3 Qe7 12. O-O-O $1 { Now white needs only one more move (Rhe1) to complete his
development. Black needs at least three. } 12... Be5 13. Qd3 f5 14. Bd5+ Be6 15. Rhe1 Kh8 { Black is in serious trouble, since he is well behind in development } ( 15... Rfd8 16. Bxe6+ Qxe6 17. Qxd8+ Rxd8 18. Rxd8+ $16 ) 16. Bxe6 Qxe6 17. Kb1 { By evading the intermediate check from f4, White now threatens Bd4. } ( 17. Bc5 Rfe8 18. Kb1 Qc6 19. Ba3 Qxg2 20. Qxf5 Bxh2 { game continuation } ) 17... Qf6 18. Bd4 Bxd4 ( 18... Rae8 19. Qe2 Bxd4 20. Qxe8 ) 19. Qxd4 Qxd4 20. Rxd4 Rfe8 $1 ( 20... Rad8 21. Rxd8 Rxd8 22. Kc1 ) 21. Re3 $1 Rxe3 22. fxe3 Kg8 23. Rd7 Re8 { In this sort of position, counterattack is always the best form of attack } 24. Rxc7 ( 24. Kc1 Rxe3 25. Kd2 { also strong } ) 24... Rxe3 25. Kc1 Re2 26. g3 b6 27. Rxa7 Rxh2 28. Ra6 Rh3 29. Rxb6 Rxg3 { The position is still remarkably
symmetrical, but White has nursed his lead in development to decisive
proportions } 30. a4 Re3 31. a5 Re8 32. a6 Ra8 33. b4 h5 34. b5 h4 35. Rc6 { White is winning due to the threat to } 35... -- ( 35... h3 36. Rc3 ) 36. b6 Rxa6 37. b7 1-0
[Event "Bad Sliac"]
[Site "?"]
[Date "1932.??.??"]
[Round "?"]
[White "Maroczy"]
[Black "Spielmann"]
[Result "1-0"]
[Annotator "06: Queen's Pawn Centre"]
[ECO "C01"]
[PlyCount "81"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The significance of the support point c5 } 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Nf3 Nge7 7. O-O Bg4 8. Re1 Qd7 9. Nbd2 O-O-O { The treatment of this opening is an example of how Black can avoid symmetry.
The sequel shows, however, that he has pursued the idea too far. He should
have castled Kingside. } 10. b4 $1 { After castling on opposite sides, it
important to seize the initiative as quickly as possible } 10... Ng6 11. Nb3 Rde8 12. Be3 Nh4 13. Be2 Bxf3 14. Bxf3 Ne7 15. Be2 Nef5 16. Bg5 Nxg2 $5 { Spielman embarked on this promising, but ultimately incorrect piece sacrifice } ( 16... -- 17. Bxh4 Nxh4 18. Nc5 { winning position } ) 17. Kxg2 f6 18. Bd2 Nh4+ 19. Kh1 h5 20. Bf1 Qf5 21. f4 g5 ( 21... Bxf4 22. Bxf4 Qxf4 23. Qd2 Qf3+ 24. Kg1 Qf5 25. Qf2 Nf3+ 26. Kh1 ) 22. Qb1 $1 Re4 23. Qd3 g4 24. Nc5 Bxc5 25. bxc5 Nf3 26. Re2 Rhe8 27. Rf2 c6 28. Rxf3 $1 { The easiest way to win. Now White has two powerful Bishops against a rook } 28... gxf3 29. Qxf3 Qd7 30. Bh3 f5 31. Qxh5 Kb8 32. Bxf5 Qe7 33. Qg5 $1 ( 33. Bxe4 Qxe4+ 34. Kg1 Rg8+ 35. Kf2 Qg2+ 36. Ke3 Qe4+ 37. Kf2 $11 ) 33... Re2 34. Qxe7 R8xe7 35. Rd1 Rg7 36. Bd3 Rf2 37. f5 a5 38. a4 Ka7 39. Be1 Ra2 40. Bg3 Rf7 41. Be5 1-0
[Event "?"]
[Site "GRONINGEN"]
[Date "1946.??.??"]
[Round "?"]
[White "Tartakower"]
[Black "Botvinnik"]
[Result "0-1"]
[Annotator "06: Queen's Pawn Centre"]
[ECO "C01"]
[PlyCount "108"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Breaking the symmetry by advancing the c-pawn } 1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Bd6 5. c4 Nf6 ( 5... dxc4 { Isolating White's d-pawn but White's pieces could become active } ) 6. c5 Be7 7. Bd3 b6 8. cxb6 ( 8. b4 a5 $1 ) 8... axb6 9. O-O O-O { In itself the
advance of the c-pawn constitutes a weakening of White's pawn structure. 
 White's d-pawn is vulnerable, but Black's c-pawn is no less so } 10. Nc3 ( 10. Bg5 { More solid, now the pin on f3 is annoying } ) 10... Bg4 11. h3 Bh5 12. g4 { An energetic weakening of the Kingside } ( 12. Be2 Ne4 $36 ( 12... c6 13. -- Bd6 14. -- Nbd7 15. -- Re8 ) ) 12... Bg6 13. Ne5 Bxd3 14. Qxd3 c6 15. Bg5 $2 Nxg4 $1 16. Nxc6 ( 16. Bxe7 Nxe5 17. Bxd8 Nxd3 18. Bxb6 Nxb2 ) ( 16. hxg4 Bxg5 17. Kg2 ) 16... Nxc6 17. Bxe7 Nxe7 18. hxg4 f5 19. Rae1 { A temporary sacrifice by Which White saves himself from being immediately
overrun on theKingside } 19... fxg4 20. Re5 Rf3 21. Qb5 Ng6 $1 ( 21... -- 22. Rxe7 Qxe7 23. Qxd5+ ) 22. Rxd5 ( 22. Qxd5+ Qxd5 23. Rxd5 Nf4 24. Rb5 Rf8 25. Rxb6 g3 26. fxg3 Nh3+ ) 22... Qf6 23. Rg5 Rf8 24. Ne4 Qf4 25. Qd5+ Kh8 26. Rh5 Rh3 ( 26... h6 27. Qe6 Re3 $1 28. Qxg6 Rxe4 29. Rh4 Rxd4 30. Qxb6 Rd2 ) ( 26... g3 27. Ng5 gxf2+ 28. Kh1 $14 ) 27. Rxh3 gxh3 28. Ng3 Nh4 29. Qe4 Nf3+ 30. Kh1 Qxe4 31. Nxe4 Rf4 32. Rc1 h6 33. Rc3 g5 34. d5 g4 35. Re3 Rf5 36. Nc3 Rf6 37. Re6 Kg7 38. Rxf6 Kxf6 39. d6 Ke6 40. Nd5 Kxd6 41. Nxb6 h5 42. Nc4+ Kd5 43. Ne3+ Ke4 44. a4 Kd3 45. Nd5 Ke2 46. Nf4+ Kxf2 47. Nxh3+ Kf1 48. Nf4 g3 49. Ng2 Kf2 50. a5 h4 51. Nf4 Kf1 52. Ng2 h3 53. Ne3+ Kf2 54. Ng4+ Ke2 0-1
[Event "AVRO"]
[Site "?"]
[Date "1938.??.??"]
[Round "?"]
[White "Fine"]
[Black "Alekhine"]
[Result "1-0"]
[Annotator "06: King's Pawn Centre"]
[ECO "C76"]
[PlyCount "91"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. O-O Bd7 6. c3 g6 7. d4 Bg7 8. dxe5 Nxe5 9. Nxe5 dxe5 { White leads in development; to make use of this fact he presses on with ... } 10. f4 $1 { This looks premature, but is in fact very strong } 10... Bxa4 ( 10... Ne7 11. fxe5 Bxe5 12. Bxd7+ Qxd7 13. Qb3 $36 ) ( 10... exf4 11. Bxf4 Bxa4 12. Qxa4+ Qd7 13. Qxd7+ Kxd7 14. Bxc7 $1 Kxc7 15. Rxf7+ { White wins three pawns } ) 11. Qxa4+ Qd7 { This temporary pawn sacrifice is practically forced } ( 11... b5 12. Qb3 ) 12. Qxd7+ Kxd7 13. fxe5 Ke6 14. Bf4 Rf8 { Black must hurry to regain the pawn } ( 14... Ne7 15. Nd2 Nc6 16. Nf3 { White threatens awful checks at d4 and g5 } ) 15. Nd2 Bxe5 16. Nb3 { This clearly shows the vulnerability of Black's King } 16... Bxf4 17. Rxf4 ( 17. Nc5+ Kd6 18. Nxb7+ Kc6 19. Na5+ Kb5 $17 ) 17... b6 18. a4 { To take advantage of the forced weakening of the pawns by Pa5 } 18... Ke5 ( 18... a5 ) 19. g3 $1 { Simple, but extremely strong; now Black threatens
Rd1, and leaves Black no time to consolidate his Queenside } ( 19. Raf1 f5 $11 20. g4 Ne7 ) 19... Nf6 ( 19... g5 20. Rf5+ Kxe4 21. g4 ) 20. Nd2 Nh5 { Knight is out of play } ( 20... Nd7 ) 21. Rf2 Ke6 ( 21... a5 22. b4 ) 22. a5 $1 Ra8 ( 22... b5 23. Nb3 ) 23. Raf1 $1 { White advantage has become decisive } 23... Rad8 ( 23... Raf8 24. g4 Ng7 25. axb6 cxb6 26. Rf6+ Ke7 27. Rxb6 $16 ) 24. Nf3 Ke7 ( 24... f6 25. Nd4+ Kd7 26. g4 Ng7 27. Rxf6 ) 25. axb6 cxb6 26. Ng5 h6 ( 26... f6 27. Nxh7 Rxh7 28. g4 ) 27. Rxf7+ Kd6 28. Nf3 g5 29. Nd4 Rhe8 30. Rh7 Rh8 31. Rff7 Rxh7 32. Rxh7 Rf8 33. Rxh6+ Nf6 34. Nf3 Kc5 35. Nd2 g4 36. Rg6 Nd7 37. Rxg4 Ne5 38. Rg5 Kd6 39. Rf5 Rd8 40. Nf3 Nd3 41. Rd5+ Ke7 42. Rxd8 Kxd8 43. b3 Ke7 44. Nd2 a5 45. Kf1 b5 46. Ke2 1-0
[Event "Hastings <ENG>"]
[Site "Hastings <ENG>"]
[Date "1922.??.??"]
[Round "?"]
[White "Thomas"]
[Black "Rubinstein"]
[Result "0-1"]
[Annotator "06: Symmetrical Four Pawns Centre"]
[ECO "C77"]
[PlyCount "82"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Black prevents the advance of the f-pawn } 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 b5 6. Bb3 Bc5 7. c3 O-O 8. O-O d6 9. d3 Ne7 10. Bg5 Ng6 11. Nh4 { At move 10 White was wrong to omit the powerful advance d4, but now, at move
11 it would have been less strong since, Black would not have taken the d-pawn,
but could have maintained the centraltension } ( 11. d4 Bb6 12. Nbd2 h6 13. Be3 ) 11... Nxh4 12. Bxh4 h6 { Well played, Black is going to play ... Pg5,
holding back White's threatened Pf4 } 13. Kh1 g5 14. Bg3 Kg7 15. Nd2 Qe7 16. Bc2 { Apparently with the intention of Nb3 preparing to advance Pd4. The
Bishop was well placed on b3 } ( 16. Rfe1 { more consistent } ) 16... Bd7 17. Rfe1 $2 ( 17. Nb3 Bb6 18. d4 ) 17... Rae8 18. a4 $2 { The a-file holds no prospects for White } 18... Rh8 19. axb5 axb5 20. Nf1 $2 { Now Black seizes a Kingside initiative } 20... h5 21. f3 h4 22. Bf2 Bxf2 23. Qxf2 g4 24. fxg4 Nxg4 25. Qf3 h3 26. g3 $8 ( 26. gxh3 Rxh3 27. Qxh3 Nf2+ ) ( 26. -- hxg2+ 27. Qxg2 Reg8 ) 26... Qg5 27. Ne3 Ra8 $1 { now Black vies for control of the a-file, this shows the weak side of 18. Pa4 } 28. Nxg4 Bxg4 29. Qf2 Rxa1 30. Rxa1 Ra8 $3 31. Rb1 ( 31. Rxa8 Qc1+ 32. Qg1 Bf3# ) ( 31. Qe1 Rxa1 32. Qxa1 Bf3+ 33. Kg1 Qe3+ 34. Kf1 ) 31... b4 $1 32. Bb3 ( 32. cxb4 Rb8 { the many weaknesses in white's position must mean his downfall } ) 32... f6 33. c4 ( 33. Bd5 bxc3 $3 34. Bxa8 ( 34. bxc3 Ra3 ) 34... c2 35. Qxc2 Qe3 36. Rf1 Bf3+ 37. Rxf3 Qe1+ ) 33... f5 34. Kg1 fxe4 35. Rf1 ( 35. dxe4 Rf8 36. Qe1 Bf3 37. Bc2 Bg2 38. Qe2 Rf3 39. Re1 Rxg3 40. hxg3 Qxg3 ) 35... e3 36. Qf7+ Kh8 37. Qd5 c6 { The initiation of a superb climax } 38. Qxc6 Rc8 39. Qe4 e2 40. Re1 d5 { Since the White Queen can't leave e4 because } 41. cxd5 ( 41. Qxd5 Qe3+ 42. Kh1 Bf3+ 43. Qxf3 Qxf3+ 44. Kg1 Qg2# ) 41... Rc1 0-1
[Event "Baden-Baden"]
[Site "?"]
[Date "1925.??.??"]
[Round "?"]
[White "Torre"]
[Black "Yates"]
[Result "1-0"]
[Annotator "06: Symmetrical Four Pawns Centre"]
[ECO "D00"]
[PlyCount "65"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 c6 5. e3 Bg7 6. Bd3 O-O 7. O-O Nbd7 8. Re1 c5 9. Qd2 a6 10. Ne5 Nxe5 11. Bxe5 c4 12. Be2 Bf5 13. Bf3 e6 14. Qe2 $1 { Before advancing with Pe4, White forces his opponent to weaken his pawn
structure. Now he threatens 15. Bxf6 and 16. Pg4 } 14... g5 ( 14... -- 15. Bxf6 Bxf6 16. g4 $18 ) 15. e4 dxe4 16. Nxe4 Nxe4 17. Bxe4 Bxe5 18. dxe5 Qc7 19. Qf3 { As a result Pe4, the Black position has been wrenched at the seems, and
now displays a number of weaknesses (c4, b7, g5, f6, h6, h5). The text pust
pressure on several of these weak points; but direct action by } ( 19. Bxf5 exf5 20. Qh5 Qe7 21. Re3 { also promising } ) 19... Bxe4 20. Rxe4 Rac8 21. h4 $1 { Decisive } 21... Qe7 ( 21... gxh4 22. Rg4+ Kh8 23. Qf6# ) ( 21... h6 22. hxg5 hxg5 23. Qh5 ( 23. Qf6 Qd8 ) 23... Qe7 24. Rg4 { crushing } ) 22. hxg5 Kh8 23. Qe3 Rg8 24. f4 b5 25. Rd1 Rcd8 26. Red4 { Thus White also dominates the d-file } 26... Qc5 27. Kf2 Rc8 28. Rh1 Qe7 { Black overlooks his opponent's threat } ( 28... Rg7 29. Rd8+ Rg8 30. Qxc5 Rxc5 31. Rd7 ) 29. Rxh7+ Kxh7 30. Qh3+ Kg6 31. Qh6+ Kf5 32. Qh7+ Rg6 33. Qh3# 1-0
[Event "The Hague"]
[Site "?"]
[Date "1928.??.??"]
[Round "?"]
[White "Euwe"]
[Black "Mattison"]
[Result "1-0"]
[Annotator "07: Fixed Formations"]
[ECO "A09"]
[PlyCount "45"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. Nf3 d5 2. c4 Nf6 3. cxd5 Nxd5 4. d4 e6 5. e4 Nb6 6. Nc3 Be7 7. Bd3 O-O 8. O-O c5 9. dxc5 Bxc5 10. e5 { An ideal attacking set-up for White. The classic
bishop sacrfice and h7 is threatened } 10... Be7 ( 10... -- 11. Bxh7+ Kxh7 12. Ng5+ Kg8 13. Qh5 Qd3 ) 11. Qe2 Nc6 12. Rd1 Nd5 { Other moves also allow White to continue to strengthen his position } ( 12... Qc7 13. Bg5 { exchange of bishops would eliminate Black's only useful defensive
piece, at the same time leaving his d6 square irreparably weak. } ) ( 12... Bd7 13. Ne4 h6 14. Ng3 ) 13. Be4 $1 Nxc3 ( 13... Ncb4 14. a3 Nxc3 15. bxc3 Nd5 16. Qc2 ) 14. Bxh7+ Kh8 ( 14... Kxh7 15. Qc2+ ) 15. bxc3 Qa5 16. Bc2 Qxc3 17. Qe4 g6 18. Ng5 Qb4 ( 18... Bxg5 19. Bxg5 Qxe5 20. Qxe5+ Nxe5 21. Bf6+ ) 19. Nxf7+ Rxf7 20. Qxg6 Rg7 21. Qh5+ Kg8 22. Bh6 Bf8 ( 22... -- 23. Qe8+ Bf8 24. Bxg7 Kxg7 25. Qg6+ Kh8 26. Qh7# ) 23. Rd3 1-0
[Event "Kemeri"]
[Site "?"]
[Date "1937.??.??"]
[Round "?"]
[White "Landau"]
[Black "Reshevsky"]
[Result "0-1"]
[Annotator "07: Fixed Formations"]
[FEN "2r2rk1/1b2qp1p/4p1pQ/p1b1P2n/PpN5/3B1N2/1P3PPP/2RR2K1 w - - 0 1"]
[PlyCount "20"]
[SetUp "1"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ A tactical example; Black obtains counterplay by ... Pf6. Looked at from the
strategic point of view, White's chances are definitely better, since Black's
pawn structure on both wings is compromised. Yet tactically it is another
matter, mainly because of the power of Black's two Bishops and the ability to
open the f-file for attack } 1. Ng5 ( 1. Be2 Bxf3 2. Bxf3 Qh4 3. g3 Bxf2+ 4. Kg2 ( 4. Kxf2 Qxh2+ ) 4... Bxg3 $1 ) ( 1. Nxa5 Bxf3 2. gxf3 Qa7 3. Nc4 Qxa4 ( 3... Bxf2+ ) ) ( 1. Nd6 Bxd6 2. exd6 Rxc1 3. Qxc1 ( 3. dxe7 Rxd1+ 4. Bf1 Re8 5. Ng5 Nf6 $17 ) 3... Qf6 4. Qe3 Bxf3 5. Qxf3 Qxf3 6. gxf3 Rd8 7. Bb5 Nf6 8. Bc6 Kf8 9. Kf1 Nd5 ) 1... f6 2. exf6 { The consequence of his previous moves. } ( 2. Ne4 fxe5 3. Ncd6 ( 3. Nxe5 Bxe4 4. Bxe4 Bxf2+ 5. Kh1 Qh4 ) 3... Bxd6 4. Nxd6 Rxc1 5. Qxc1 Qxd6 6. Bxg6 Qb6 ) ( 2. Bxg6 fxg5 ( 2... hxg6 3. Qxg6+ Qg7 ) 3. Bxh5 Bxf2+ 4. Kh1 Bxg2+ 5. Kxg2 Qb7+ 6. Kf1 Qh1+ 7. Ke2 Qe4+ ) 2... Bxf2+ $3 { With this White is awakened from his rosy dreams } 3. Kxf2 ( 3. Kh1 Rxf6 4. Nxa5 Rxc1 5. Rxc1 Be3 6. Re1 Bxg5 7. Qxg5 Rf1+ ) 3... Qxf6+ 4. Nf3 Bxf3 5. gxf3 Qxf3+ 6. Kg1 Rf4 7. Qxf4 Nxf4 8. Bf1 Rc5 9. Rd8+ Kg7 10. Rd7+ Kh6 0-1
[Event "Vienna"]
[Site "?"]
[Date "1898.??.??"]
[Round "?"]
[White "Tarrasch"]
[Black "Marco"]
[Result "1-0"]
[Annotator "07: Fixed Formations"]
[FEN "1rq2rk1/p1nbbpp1/3p1n1p/1ppP1P2/2P2B2/1PNB1N1P/P1Q3P1/R4RK1 b - - 0 1"]
[PlyCount "32"]
[SetUp "1"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The technique of siege warfare  We observe here, not only that the d-pawn
cramps the Black game, but also that the pressure is intensified by the f-pawn
- so that all chance of counterplay by Black is ruled out. Only on the
Queenside has he some chance of increasing the space available to him. Dr
Tarrasch felt especially at home in such positions and he demonstrates the
superiority of White's position with impeccable technique } 1... b4 2. Ne2 a5 3. g4 Nh7 4. h4 { The purpose of this move is not so much to play Pg5
as to prevent Black's pieces from using g5, and thus achieving some slight
freedom } 4... Qd8 5. Bg3 a4 6. Kh1 Ra8 7. Rae1 { Typical siege technique; White
is not going to allow an exchange of Rooks. We know already that every
exchange helsp the side with less maneuvering space. In this case we have
clear evidence of this fact, since Black's pieces are cramped and
uncoordinated } 7... Ne8 8. Nf4 Bf6 9. Ne6 { The decisive blow. If the
Knight is captured, the f-pawn recaptures and the Knight on h7 as well as the
Bishop on d7 are attacked } 9... axb3 10. axb3 Qb6 11. Nxf8 Kxf8 12. g5 { Now white blasts open lines to destroy Black's hapless defence } 12... hxg5 13. hxg5 Nxg5 14. Qh2 Kg8 15. Nxg5 Bxg5 16. f6 $1 g6 17. Bxg6 1-0
[Event "Berlin"]
[Site "?"]
[Date "1928.??.??"]
[Round "?"]
[White "Rubinstein"]
[Black "Nimzowitsch"]
[Result "1-0"]
[Annotator "07: Fixed Formations"]
[ECO "E32"]
[PlyCount "85"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Rubinstein was another master of the art } 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d6 5. e3 c5 6. Bd3 Nc6 7. Ne2 e5 8. d5 Bxc3+ 9. Qxc3 Ne7 10. Qc2 O-O 11. O-O Ng6 12. Ng3 Re8 13. f3 Bd7 14. Bd2 a6 15. h3 b5 16. b3 Qb6 17. Kh2 { White wants
to play Pf4 but observe how he waits for Queenside tension to be released
before he prepares his strike } 17... a5 18. Rab1 b4 19. f4 { now! } 19... exf4 20. exf4 Nf8 21. Bc1 { The only real difference to this position an that of
Tarrasch-Marco is that a pair of minor pieces have been exchanged, hence Black
has more room to maneuver } 21... Qd8 { Momentarily crossing White's plan of
putting his Queen Bishop on the long diagonal } 22. Qf2 ( 22. Bb2 Ng4+ 23. hxg4 Qh4+ 24. Kg1 Qxg3 ) 22... a4 23. Bb2 Ng6 24. Rbd1 axb3 25. axb3 Ra7 { Black can only wait } 26. Rde1 { So as to be able to play Pf5 without giving Black free use of the e5 square } 26... Rxe1 ( 26... Ra8 ) 27. Rxe1 Nf8 { This allows White to take the
offensive at once, but it is difficult to suggest a good course for Black } ( 27... Bc8 28. Bxf6 gxf6 29. Nh5 ) 28. Bxf6 Qxf6 29. Ne4 Qh6 30. f5 Ra3 31. Rb1 Ra6 32. g4 f6 ( 32... -- 33. g5 Qh5 34. Be2 $18 { trapped Queen } ) 33. Kg3 { The King himself takes a hand in restraining the Black Queen } 33... Bc8 34. Re1 Bb7 ( 34... Nd7 35. Nxd6 Rxd6 36. Re8+ ) 35. Qe2 Nd7 36. Nxd6 Rxd6 37. Qe8+ Nf8 38. Re7 { Black is helpless to stop the coming slaughter } 38... g6 39. Qf7+ Kh8 40. Re8 Rd8 41. Qxf6+ ( 41. Rxd8 $2 Qe3+ 42. Kg2 Qd2+ 43. Kg1 Qe3+ $11 ) 41... Kg8 42. Qe6+ Kg7 43. f6+ 1-0
[Event "Baden Baden"]
[Site "Baden Baden"]
[Date "1925.??.??"]
[Round "?"]
[White "Tarrasch"]
[Black "Alekhine"]
[Result "0-1"]
[Annotator "07: Partially Fixed Formations"]
[ECO "C53"]
[PlyCount "58"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Black gives up the centre at the right moment } 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Bb6 5. d4 Qe7 6. O-O Nf6 7. Re1 d6 8. a4 a6 9. h3 O-O 10. Bg5 h6 11. Be3 Qd8 $3 { Alekhine described this as the most difficult move of the whole
game. The intention is twofold: he gets his Queen off the file of the enemy
Rook and prepares to play ... Pd5, preceded by ... Pxd4. Meanwhile, the e-file
is reserved for a Black rook } 12. Bd3 Re8 13. Nbd2 Ba7 { Maintaining the
tension. This move robs White of a chance of playing Nc4 later on with gain of
tempo, and also prevents his from eventually breaking up the Black pawns by
capturing first on e5 and then on b6 } 14. Qc2 { Overprotecting his e-pawn in preparation for the maneuver Nf1-g3 } 14... exd4 $1 { At the correct moment Black abadons the centre } 15. Nxd4 ( 15. cxd4 Nb4 { exchanging off White's strong King bishop } ) 15... Ne5 16. Bf1 d5 $1 17. Rad1 ( 17. f4 Ng6 18. e5 Nh5 { wins a pawn } ) 17... c5 18. N4b3 Qc7 19. Bf4 ( 19. exd5 Nxd5 20. Nc4 Nxc4 21. Bxc4 Nxe3 22. Rxe3 Rxe3 23. fxe3 { Black retains the two Bishops under favourable circumstances } ) 19... Nf3+ $1 20. Nxf3 Qxf4 21. exd5 ( 21. e5 { stronger } 21... Bf5 22. Qd2 Qxd2 23. Rxd2 Ne4 24. Rdd1 ( 24. Rxd5 Be6 $1 ) 24... Rad8 $17 { bishop pair } ) 21... Bf5 22. Bd3 ( 22. Qd2 Qxa4 23. Nc1 Bc2 24. Rxe8+ Rxe8 25. Re1 Ne4 26. Qf4 c4 27. Nd4 Bxd4 28. cxd4 Qb4 ) 22... Bxh3 23. gxh3 Qxf3 24. Rxe8+ Rxe8 25. Bf1 { White has avoided the loss of a pawn, but now his King will soon fall } 25... Re5 26. c4 Rg5+ 27. Kh2 Ng4+ 28. hxg4 Rxg4 29. Bh3 Rh4 0-1
[Event "Stockholm"]
[Site "?"]
[Date "1928.??.??"]
[Round "?"]
[White "Reti"]
[Black "Stolz"]
[Result "0-1"]
[Annotator "07: Partially Fixed Formations"]
[ECO "C86"]
[PlyCount "84"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ via Tension form to the Spanish centre } 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2 b5 7. Bb3 d6 8. c3 O-O 9. d4 Bg4 10. Rd1 exd4 { This move was strongly criticised by Dr. Tarrasch. Black not only surrenders
his hold on the centre, but also presents White with the c3 square for his
Knight } 11. cxd4 d5 { Nor did this move please Tarrassch } 12. e5 Ne4 { This is what we called, in our introduction, the Spanish centre } 13. Nc3 Nxc3 14. bxc3 Na5 { In the game, we see Stolz following this plan to exchange
light squared bishops, with transposition of move, and it appears the Black
position is not all that bad at all } ( 14... f6 $2 15. h3 $1 Bh5 16. g4 Bf7 17. e6 { Lasker-Teichmann, Petersburg 1909 } ) ( 14... Qd7 15. -- Na5 16. Bc2 Bf5 { Exchanging the dangerous Bishop - Tarrasch } ) 15. Bc2 Qd7 16. Qd3 { forcing a weakening of Black's Kingsie } 16... g6 17. Qe3 Rfb8 $1 { An excellent move, vacating f8 for the bishop and simultaneously preparing for
queenside operations } 18. Qh6 Bf8 19. Qh4 Bf5 20. Bxf5 Qxf5 21. Re1 Rb6 { Black makes his Rook available for offence or defence. However, this move
is an inexactitued, since it permits White to bring his Rooks into the attack
via e3 } ( 21... Nc4 ) 22. Bh6 Ba3 23. Bc1 ( 23. Ng5 -- ( 23... Be7 24. g4 Qd7 25. Re3 f5 26. e6 Bxg5 27. exd7 ) 24. Nxh7 ( 24. g4 Qd7 25. Bg7 Kxg7 26. Qxh7+ Kf8 ) 24... Kxh7 25. Bg5+ Kg8 26. g4 Qc8 27. Bf6 Rxf6 28. exf6 Qf8 29. Re3 ) 23... Bf8 24. Bh6 Ba3 25. Bc1 Bxc1 { Black decides to play for a win } 26. Raxc1 Kg7 27. Nd2 Nc4 28. Nb3 { It is clear that White doesn't want to exchange Knight,
opening the b-file for Black's Rooks. He aims to occupy his own support points
at c5 } 28... g5 $1 { With White no doubt expecting Queenside operations,
suddenly Black attacks on the Kingside } 29. Qg3 h5 30. h4 ( 30. h3 { more prudent } ) 30... Rg6 31. Nc5 gxh4 32. Qxh4 Nd2 { With this and his next moves, Black throws all his pieces at the White King } 33. Kh2 Kh7 34. Re3 Rag8 35. Rg1 { White has no choice. Now comes a forced
liquidation, the point of which emerges with Black's unexpected 38th move } 35... Rg4 36. Qf6 Qxf6 37. exf6 Rh4+ 38. Rh3 Nf3+ 39. gxf3 Rxh3+ 40. Kxh3 Rxg1 41. Nxa6 Rc1 42. Nxc7 b4 0-1
[Event "Budapest"]
[Site "?"]
[Date "1940.??.??"]
[Round "?"]
[White "Szabo"]
[Black "Euwe"]
[Result "0-1"]
[Annotator "07: Partially Fixed Formations"]
[ECO "C87"]
[PlyCount "80"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The dangerous Kingside pawn majority becomes active } 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Re1 Bd7 7. c3 Be7 8. d4 O-O 9. Nbd2 exd4 10. cxd4 Nb4 11. Bxd7 ( 11. Bb3 { sharper } 11... c5 12. Nf1 Bb5 13. Ng3 d5 14. e5 Ne4 15. Nxe4 dxe4 16. Rxe4 Bd3 17. Re3 c4 18. a3 { lively development (Euwe-Keres, 1939) } ) 11... Qxd7 12. Nf1 d5 13. Ne5 $1 { Before committimg himself to the advance of Pe5, White goes in for a maneuver
to exchange a pair of Knights and thereby be ready to push the f-pawn aswell } 13... Qe8 14. a3 Nc6 15. Nxc6 Qxc6 16. e5 Ne4 17. Ne3 Qd7 18. f3 { The point of White's previous moves is now apparent; his pawn majority on the
Kingside is four against three ... it rolls into action with gain oftempo } 18... Ng5 19. f4 Ne4 20. f5 Rfe8 21. Qf3 { A critical moment. White threatens
to win a pawn with Nxd5, and so compels Black's reply. The result is that
Black's can't obtain counterplay by means of ... Pc5 } 21... c6 ( 21... -- 22. Nxd5 Qxd5 23. Qxe4 ) 22. f6 $1 Bf8 ( 22... gxf6 23. Ng4 { Things would be really serious } ) 23. fxg7 Bxg7 24. Nf5 Qe6 25. Be3 Qg6 26. Rad1 $2 { The strongly placed Black Knight makes it difficult for White to
attack, but this last move permits Black to get rid of the spearhand of the
White position - the e pawn - and suddenly it is Black who stands better. It
is essential for White to prevent ... Pf6 } ( 26. Rf1 { necessary } ) 26... f6 $1 27. Nh4 Qf7 28. Rf1 Qe6 29. exf6 Bxf6 30. Nf5 Kh8 { In a few moves the
whole picture has changed. Through the disappearance of the e-pawn, White is
now plagued by the weakness of his isolated d-pawn; moreover, the open g-file
will be favourable to Black.  This is a familiar circumstance in the struggle
for the centre. A central pawn majority lays upon its owner the responsibility
of maintaining it. A pawn centre always has associated weaknesses, which
remain latent so long as the centre is intact. As soon as it becomes
impossible to hold the centre, the drawbacks loom larger } 31. Qh5 Rg8 32. Rf3 Bg5 33. Rdf1 Raf8 34. Nh6 ( 34. Nh4 Rxf3 35. Nxf3 Nf6 $19 ) 34... Bxe3+ 35. Rxe3 Rxf1+ 36. Kxf1 Qf6+ 37. Nf5 Rf8 38. g4 Qxd4 39. Qxh7+ $2 ( 39. Qh6 Qd1+ 40. Kg2 Qxg4+ 41. Rg3 Qe2+ ) ( 39. Rf3 Qd1+ 40. Kg2 Qe2+ ) 39... Kxh7 40. Rh3+ Kg8 0-1
[Event "13"]
[Site "Moscow URS ch"]
[Date "1949.??.??"]
[Round "?"]
[White "Smyslov"]
[Black "Liublinsky"]
[Result "1-0"]
[Annotator "07: Partially Fixed Formations"]
[ECO "C87"]
[PlyCount "65"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The tension protracted as long as possible } 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 Bd7 6. d4 Nf6 7. Nbd2 Be7 8. O-O O-O 9. Re1 { This is a fine
example of a position which needs to be played in the "tension" style } 9... Be8 { This strange looking move has a double purpose. Firstly, the Bishop no longer
blocks the action of the Queen down the file, so that the possibility of ...
Pd5 is open to Black  The second point is that it vacates d7 for a Knight. An
eventual ... Nfd7 will allow Black to play ... Nb6, forcing the hostile Bishop
to declare its intentions. It also allows the move ... Pf6, protecting the
e-pawn, and simultaeneously freeing the Bishop for action on the diagonal
e8-h5 } 10. Bb3 { This hinders Black's plans. } ( 10. Nf1 exd4 11. cxd4 d5 12. e5 Ne4 { illustrates how careful one must be with tension in the centre } ) ( 10. -- Nd7 11. -- Nb6 12. Bc2 f6 ) ( 10. d5 { transition to a blocked oblique centre gives Black good counterplay } 10... Nb8 11. Bc2 c6 12. c4 cxd5 13. cxd5 a5 $132 ) 10... Nd7 11. Nf1 Bf6 ( 11... Kh8 12. -- f6 ) 12. Ne3 Ne7 13. Ng4 { (GM plan) } 13... Ng6 14. g3 { stopping the
Knight from occupying f4 .. the important square in these positions } 14... Be7 15. h4 $1 { GM plan } 15... Nf6 16. Ng5 h6 17. Nxf6+ Bxf6 18. Qh5 { Apparently
according to plan. This powerul move emphasizes White's advantage } 18... Nh8 ( 18... hxg5 19. hxg5 Be7 20. Qxg6 Kh8 21. Qh5+ Kg8 22. g6 $18 ) ( 18... Ne7 { The Knight would be in the way } 19. dxe5 dxe5 20. Be3 Nc6 21. Rad1 Qc8 22. Qg6 $1 ) 19. dxe5 $1 { Putting an end to the tension at exactly the right moment } 19... dxe5 { So we reach a form of the e-pawn centre. Black could also have
played ... Bxe5, running into the Ruy Lopez Centre } 20. Be3 Qe7 ( 20... hxg5 { GM combination } 21. hxg5 g6 22. Qh4 Bg7 23. Kg2 Bc6 24. Rh1 Re8 25. Qh7+ Kf8 26. Bc5+ Re7 27. Qxh8+ Bxh8 28. Rxh8+ Kg7 29. Rxd8 Rxd8 30. Bxe7 $18 ) 21. Bd5 $1 { Forcing a weakening of Black's pawn formation } 21... c6 ( 21... hxg5 22. hxg5 g6 23. gxf6 $1 ) 22. Bb3 Bd7 23. Rad1 Rad8 24. Rd2 Bc8 25. Red1 Rxd2 26. Rxd2 Qc7 { Now White has to again reckon with the possibility of ... hxg5
and ... Rd8 simplifying } 27. Bc5 $1 { very well played } 27... Rd8 ( 27... hxg5 28. Bxf8 Kxf8 29. Qxh8+ ) ( 27... Be7 28. Bxe7 Qxe7 29. Nf3 Re8 30. Qxe5 Qxe5 31. Nxe5 Rxe5 32. Rd8+ Kh7 33. Rxc8 Rxe4 34. Bc2 ) 28. Rxd8+ Bxd8 ( 28... Qxd8 29. Bxf7+ ) 29. Nxf7 $1 Nxf7 30. Bb6 $3 Qd7 ( 30... Qxb6 31. Qxf7+ Kh7 32. h5 ) 31. Bxd8 Kh7 32. Bxf7 Qxd8 33. Bg6+ { loses another pawn } 1-0
[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Tartakower"]
[Black "Sultan Khan"]
[Result "0-1"]
[Annotator "07: Partially Fixed Formations"]
[ECO "B12"]
[PlyCount "80"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ An unimportant version of the Tension Form } 1. e4 c6 2. d4 d5 3. f3 e6 4. Be3 Nf6 5. Bd3 c5 { Strictly speaking we are still in the opening stage;
yet already White is experience some difficulty in maintaining the tension.
The root cause is the weakened diagonal e1-h4 } 6. c3 { The fact that this costs
a pawn will not worry white, who in playing this variation is looking for
compensation in play on the f-file } ( 6. e5 cxd4 7. Bxd4 Nfd7 8. f4 Nc6 ) 6... cxd4 7. cxd4 dxe4 8. fxe4 Nxe4 9. Nf3 ( 9. Bxe4 Qh4+ ) 9... Bb4+ 10. Nbd2 ( 10. Ke2 Nf6 11. Qa4+ Nc6 12. Bb5 Bd6 13. Bxc6+ bxc6 14. Qxc6+ Bd7 15. Qxd6 Bb5+ ) 10... Nxd2 11. Nxd2 Bxd2+ 12. Qxd2 { For the sacrificed pawn White has the
two bishops and the f-file but these factors are not sufficient compensation.
White is hindered by the weakness of his centre pawn; moreover, Black will
soon play ... Pf5 after which there will be few chances for attack on the
Kingside } 12... Nc6 13. O-O O-O 14. Rf3 f5 15. Bc4 Bd7 16. Raf1 Na5 17. Be2 Rc8 18. d5 Nc4 19. Bxc4 Rxc4 20. b3 Rg4 21. Rd1 e5 22. Bxa7 Rf6 23. Rg3 f4 24. Rxg4 Bxg4 25. Re1 b6 26. Rxe5 Qd7 27. h3 Bxh3 28. gxh3 Qxh3 29. Qg2 Rg6 30. Qxg6 ( 30. Rg5 Qe3+ 31. Kf1 f3 ) 30... hxg6 31. Bxb6 Qg3+ 32. Kf1 Qc3 33. Re2 Qd3 34. Kf2 Qxd5 35. b4 g5 36. a4 g4 37. a5 g3+ 38. Ke1 f3 39. Rd2 Qe4+ 40. Kf1 Qb1+ 0-1
[Event "Beverwijk"]
[Site "?"]
[Date "1952.??.??"]
[Round "?"]
[White "Donner"]
[Black "Van Scheltinga"]
[Result "1-0"]
[Annotator "07: Partially Fixed Formations"]
[ECO "E72"]
[PlyCount "65"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ White has a crushing advantage in space } 1. d4 Nf6 2. c4 g6 3. Nc3 d6 4. e4 Bg7 5. g3 O-O 6. Bg2 c5 7. Nge2 Nc6 8. d5 Ne5 9. b3 Bg4 10. O-O Nf3+ 11. Kh1 Nd4 12. f3 Nxe2 13. Qxe2 Bd7 14. Bb2 a6 { Black aims for Queenside counterplay by playing ... Pb5 } ( 14... e5 15. dxe6 { weak d-pawn } ) 15. f4 Ne8 16. e5 Rb8 17. Ne4 { White's position is now
overwhelming; anything the opponent attempts must rebound, because of an acute
lack of space } 17... b5 18. Bc3 bxc4 19. bxc4 Qc7 20. Nd2 e6 21. Rfb1 exd5 22. Rxb8 Qxb8 23. Rb1 Qc8 24. cxd5 Bb5 25. Qe3 Nc7 26. exd6 Bxc3 27. Qxc3 Ne8 28. Ne4 c4 29. Qe5 Qd7 30. a4 Bxa4 31. Nc5 Qxd6 32. Nxa4 Qa3 33. Ra1 1-0