Icannos/chess_studies huggingface dataset:
[Event "Reichenberg"]
[Site "?"]
[Date "1936.??.??"]
[Round "?"]
[White "Gilg"]
[Black "Pelikan"]
[Result "1-0"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "E67"]
[PlyCount "55"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 4. Nc3 O-O 5. g3 d6 6. Bg2 Nbd7 7. O-O e5 8. d5 a5 9. e4 Nc5 10. Ne1 Ne8 11. Nd3 f5 { Black's idea is to recapture on c5
with his d-pawn, and then occupy d6 with the Knight } 12. Nxc5 dxc5 13. Be3 { This crosses Black's plan, for if 13. ... Pb6, there comes 14. Pexf5 and 15.Pd6 } 13... Qd6 ( 13... b6 14. exf5 gxf5 15. d6 ) 14. f4 { This move generally
involves difficulties caused be the weakness of the e-pawn. here there is no
such difficulty, since at some suitable moment the e-pawn can be exchanged for
the pawn on f5. If Black opens the game by exchanging on e4 and f4, the game
turns to White's advantage as a rule, for with his d-pawn already on the fifth
rank the square e5 can easily become a strong support point } 14... Bd7 15. Qd2 Rb8 16. Rae1 b6 17. Rf2 Rf7 18. Kh1 Qf8 { Black is ready for Nd6 } 19. fxe5 Bxe5 20. Bh6 Qd6 { The square reserved for the Knight is again occupied by the Queen instead } ( 20... Bg7 21. Bxg7 Qxg7 22. e5 ) 21. Rfe2 Nf6 ( 21... f4 22. gxf4 Bxf4 23. Bxf4 Qxf4 24. Qxf4 Rxf4 25. b3 ) 22. exf5 Bxc3 23. Qxc3 Bxf5 24. Re6 $1 { A decisive combination based on the support point e6 } 24... Qd8 ( 24... Bxe6 25. dxe6 Rff8 26. e7 Rfe8 27. Bd5+ Kh8 28. Re6 $18 ) 25. Bg5 Ne4 ( 25... Bxe6 26. dxe6 ) 26. Bxd8 Nxc3 27. Re8+ Kg7 ( 27... Rf8 28. Rxf8+ Kxf8 29. Be7+ Kf7 30. bxc3 Re8 31. d6 cxd6 32. Bd5+ Kg7 33. Bf6+ Kxf6 34. Rxe8 ) 28. bxc3 1-0
[Event "Moscow"]
[Site "?"]
[Date "1936.??.??"]
[Round "?"]
[White "Flohr"]
[Black "Lilienthal"]
[Result "1-0"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "E68"]
[PlyCount "67"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 Nf6 2. c4 d6 3. Nf3 Nbd7 4. g3 g6 5. Bg2 Bg7 6. O-O O-O 7. Nc3 e5 8. e4 Re8 9. d5 Nc5 10. Ne1 a5 11. b3 Bd7 12. h3 Rf8 13. Be3 Ne8 { Black's play has been more to the point ... all set for ... Pf5 } 14. Rc1 b6 15. Qd2 f5 16. exf5 Bxf5 $2 { This leaves White in control of a fine support
point at e4. Recapture with the pawn is indicated in this sort of position } ( 16... gxf5 ) 17. g4 $1 Bd7 18. Nf3 Rb8 19. Ng5 $1 Bf6 20. Nge4 Bg7 21. Rce1 Nf6 22. Ng3 $1 { Every exchange would ease Black's task, and White
must in any case be careful to keep a Knight to make use of the strong square
e4. If any Black piece contest control of this square, White's first priority
is to drive them away. He now threatens Pg5 } 22... Kh8 ( 22... Be8 23. f4 exf4 24. Bxf4 Nfd7 25. Bh6 Bf7 { (Alatortzev) } ) 23. f4 Ng8 24. Nce4 Nxe4 25. Nxe4 Qe7 26. Ng5 Rbe8 27. fxe5 Bxe5 28. Nf3 Bg7 $2 ( 28... Qg7 29. Nxe5 dxe5 { White would have a decisive positional advantage, with his strong
point at e4, his Bishop pair and his active Queenside majority which can start
rolling at once with Pc5 } ) 29. Bxb6 Qxe1 30. Rxe1 Rxe1+ 31. Qxe1 cxb6 32. Qg3 a4 33. Qxd6 axb3 34. axb3 1-0
[Event "Bad Sliac"]
[Site "?"]
[Date "1932.??.??"]
[Round "?"]
[White "Flohr"]
[Black "Bogolyubov"]
[Result "1-0"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "E94"]
[PlyCount "52"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. d5 Nc5 9. Nd2 a5 10. Qc2 Bg4 11. Nb3 Bxe2 12. Qxe2 Ncd7 13. Be3 h6 14. Nc1 Nh7 15. Nd3 f5 $2 { When this game was played, the maneuver which White now
employs - or at least its underlying background - was unknown } 16. exf5 gxf5 17. f4 $1 e4 { Unavoidable in the long run } 18. Nf2 Bxc3 $2 ( 18... Nhf6 19. g4 $14 { In the modern lines of the King's Indian, however, White's
plans are not so easily realizable, since Black has time for ... Ph5, securing
himself counterply on the g-file } ) 19. bxc3 Nhf6 20. g4 $1 { Completely dislocating Black's position } 20... Kh7 ( 20... fxg4 21. Nxg4 Nxg4 22. Qxg4+ Kh8 23. Kh1 { White's attack becomes decisive as soon as he gets a
Bishop on d4 combining with the major pieces on the g-file } ) 21. g5 $1 Ng8 22. Kh1 Qe8 23. Rg1 Qg6 24. gxh6 Qxh6 25. Rg3 Ngf6 26. Rh3 Nh5 1-0
[Event "Budapest"]
[Site "?"]
[Date "1950.??.??"]
[Round "?"]
[White "Szabo"]
[Black "Boleslavsky"]
[Result "0-1"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "E92"]
[PlyCount "91"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. d4 O-O 5. e4 d6 6. Be2 e5 7. d5 Nh5 8. Ng1 $2 ( 8. O-O { White thought that his opponent had nothing better now than to retreat ... Nf6 } ) 8... Nd7 $3 { One of the most startling discoveries of recent years. Without
battling an eyelid, Black gives up a pawn simply to enforce ... Pf5 } ( 8... Nf6 9. g4 { Not only actively prevents ... Pf5, but also starts a direct attack of his own } ) 9. Bxh5 gxh5 10. Qxh5 Nc5 11. Nf3 ( 11. g4 c6 12. Nf3 cxd5 13. cxd5 Qf6 14. g5 Qg6 { powerful line for Black } ) 11... f5 12. O-O f4 ( 12... fxe4 13. Ng5 Bf5 14. Qe2 $14 ) 13. b4 Nd7 14. Bb2 Qe7 $1 15. Ng5 { else Black plays ... Rf6-Rh6 } 15... Nf6 16. Qh4 h6 17. Nf3 Qf7 18. Nd2 Ng4 $1 19. f3 { In order to make an escape route for his Queen .. white
concedes his opponent the e3 square } 19... Ne3 $1 ( 19... Bf6 20. Qe1 ( 20. Qh3 Ne3 21. Qxh6 { White would have two pawns for the exchange } ) ) 20. Rfc1 Kh7 21. Nd1 Bf6 22. Qf2 Rg8 $1 { The tactical point, not only of Black's 19th
move but also of Black's whole plan so far. The use this open file was what
Black visualized when sacrificing the pawn at move 8 } 23. Nxe3 fxe3 24. Qxe3 Bg5 25. Qe2 Bxd2 26. Qxd2 Bh3 27. g3 Qxf3 28. Rc3 ( 28. Re1 Raf8 29. -- Rxg3+ 30. hxg3 Qxg3+ 31. Kh1 Rf2 32. Qxf2 Qxf2 ) 28... Qxe4 29. c5 { This leads only to a weakening of the d-pawn } ( 29. Qc2 Qxc2 30. Rxc2 Raf8 31. Rf2 ) 29... Rg7 30. Qc2 Qxc2 31. Rxc2 Rf8 32. Rf2 Rgf7 33. Rxf7+ Rxf7 { The White King is in a tight corner and a White pawn is bound to be lost } 34. Re1 Rf3 35. cxd6 cxd6 36. Bc1 ( 36. Rd1 Kg6 37. b5 Kf5 38. Bc1 Ke4 ) 36... Rd3 37. Be3 a6 38. Kf2 Rxd5 { Black's united passed pawns now guarantee him an easy win } 39. Rc1 Kg6 40. Rc7 Rb5 41. Rc4 Be6 42. Rh4 h5 43. a4 Rd5 44. h3 Bd7 45. a5 Rd3 46. Ke2 0-1
[Event "London"]
[Site "?"]
[Date "1951.??.??"]
[Round "?"]
[White "Gligoric"]
[Black "Klein"]
[Result "1-0"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "E95"]
[PlyCount "95"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 Nbd7 7. O-O e5 8. Re1 Re8 9. Bf1 c6 10. d5 Nf8 $2 11. Bd2 h6 12. g3 Kh7 13. Nh4 Ng8 14. Qf3 c5 { At move 10 Black neglected to play ... Pc5 directly and follow up by
working for ... Pf5 in the manner now familiar to us, by ... Rf8 and ... Ne8.
The result is that White can now prevent ... Pf5, and so remain free to
concentrate on his own problem of how to open a file on the Queenside. It must
be said, however, that the Black formation c5-d6-e5 is in itself some
improvement on what we have seen hiterhto: c7-d6-e5. The base of this new
chain, d6 is virtually impregnable, so that White can only strike at one of
the heads, e5 or c5; and this, as we know, can lead him into difficulties } 15. a3 ( 15. Qxf7 $2 Nf6 { Queen would be lost } ) 15... Re7 16. b4 b6 ( 16... cxb4 17. axb4 { There would be no way for Black to take advantage of the
weakness of the White c-pawn } ) 17. Rab1 Bd7 18. bxc5 bxc5 ( 18... dxc5 { positionally preferable but tactically unplayable } 19. d6 Re6 20. Qxf7 Rxd6 21. Nd5 ) 19. Qd3 Be8 20. Rb2 Rb8 21. Reb1 Rb6 ( 21... Rxb2 22. Rxb2 { White would
have achieved his aim - mastery of the only open file. Rather than let this
happen, Black accepts a weak b-pawn, and hopes for counterplay on the a-file } ) 22. Rxb6 axb6 23. Qc2 Ra7 24. Qb3 Ra6 25. Nb5 Ne7 ( 25... Bxb5 26. cxb5 ( 26. Qxb5 Rxa3 27. Qxb6 ) 26... Ra7 27. a4 ) 26. Bh3 { An important intermezzo. By
preventing ... Nc8, White practically forces his opponent to part with his
good Bishop in exchange for White's bad one } 26... Bd7 27. Bxd7 Qxd7 28. Ng2 { There is no longer any need to prevent ... Pf5, for Black is now being kept
too busy on the Queenside to think of transferring his forces to the Kingside.
Under the present circumstances, the move ... Pf5 would be only aweakening } 28... Nc8 ( 28... f5 29. f3 g5 30. Ne3 f4 31. Nf5 $1 ) 29. Ne3 h5 30. Nd1 Bf6 31. Kg2 Kg7 32. Ne3 Nh7 33. h4 Kg8 34. a4 $1 { After some harmless shuffling, White
hits on the right plan: The following breakthrough aims to get the b-file full
open, so that his pieces can penetrate into the enemy lines } 34... Bg7 35. Nc3 Na7 { to prevent Qb5 } ( 35... Ra5 ) 36. a5 $1 Nc8 { One last attempt to stem the invasion on the b-file } ( 36... Rxa5 37. Qxb6 ) ( 36... bxa5 37. Qb8+ Nc8 38. Rb7 $18 ) 37. Na4 $1 bxa5 38. Qb5 Qxb5 ( 38... Ra7 39. Qxd7 Rxd7 40. Rb8 Rd8 41. Nb6 $18 ) 39. cxb5 Ra7 40. b6 Nxb6 ( 40... Rb7 41. Nc4 ) 41. Rxb6 Bf8 42. Nc4 Nf6 43. f3 Nd7 44. Rc6 Kg7 45. Nxd6 Nb8 46. Nb5 Nxc6 47. dxc6 Ra8 48. c7 1-0
[Event "03"]
[Site "Margate"]
[Date "1939.??.??"]
[Round "?"]
[White "Thomas"]
[Black "Keres"]
[Result "0-1"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "C91"]
[PlyCount "86"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O d6 6. Re1 b5 7. Bb3 Be7 8. c3 O-O 9. d4 Bg4 10. d5 Na5 11. Bc2 c5 12. Nbd2 Ne8 13. Nf1 g6 14. Ne3 Bd7 { This and similar variations of the Ruy Lopez differ but little in their
general strategy from the positions we have been handling so far. One small
difference here is that the Bishop placed on c2 may become very active if
White plays Pf4 lateron } 15. b4 $1 Nb7 16. a4 { In this case White obtains his open file on the Queenside particularly easily } 16... Ng7 17. h3 Qc7 18. Qd2 Rfc8 { A remarkable preparation for the advance which follows. } ( 18... f5 { simpler } ) 19. Bb2 f5 $5 20. exf5 gxf5 21. axb5 axb5 22. Rxa8 Rxa8 23. g4 $2 ( 23. c4 { White would have obtained maximum freedom for his Bishops } 23... e4 ( 23... f4 24. Qd3 $1 ) 24. Qc3 $1 ) 23... Rf8 24. Nxf5 Nxf5 25. gxf5 Bxf5 26. Bxf5 Rxf5 27. Qd3 Qd7 28. Re4 { In obtaining this strong square, White has achieved a
strategic success, but it is at the cost of his King's safety, and this factor
now begins to tell } 28... h5 29. Bc1 Rf7 30. Ng5 Bxg5 31. Bxg5 Qf5 32. Qe3 $2 ( 32. Bh4 Rg7+ 33. Kh2 ( 33. Kf1 ) 33... Qg6 34. Bg3 h4 $1 ) 32... cxb4 33. cxb4 Rg7 34. h4 Nd8 { Now the Knight gets into play } 35. Qe2 Nf7 36. Re3 Nxg5 37. hxg5 h4 $1 { Directed against Rg3 } 38. Qxb5 Qxg5+ 39. Kf1 Qg2+ 40. Ke1 Rf7 41. f3 h3 42. Qf1 Rg7 43. Qb5 Qg5 0-1
[Event "Folkestone"]
[Site "?"]
[Date "1933.??.??"]
[Round "?"]
[White "Alekhine"]
[Black "Mikenas"]
[Result "1-0"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "B06"]
[PlyCount "89"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 Nd7 5. Bc4 e6 6. O-O Ne7 7. a4 O-O 8. Be3 h6 9. Qd2 Kh7 10. h3 c6 11. Bf4 d5 12. Bd3 a6 13. Bd6 f5 14. e5 Rg8 15. h4 { Alekhine, whose annotations we shall largely follow, intends to open a
file on the Queenside, but before proceeding to this he pauses to prevent ...
Pg5 } 15... b6 ( 15... Nf8 16. Qg5 $1 hxg5 17. Nxg5+ Kh6 18. Nf7+ ) 16. Ne2 ( 16. Qg5 Ra7 ) 16... Nf8 17. a5 { Forcing a further weakening } 17... b5 18. g3 Rh8 19. Kg2 Kg8 20. Rh1 Kf7 21. Nf4 Rg8 22. b3 { White's maneuvers so far have
aimed only at predestining any Black counteraction to failure; but now White
lays his trumps on the table. The c-file is to be opened } 22... Nh7 23. c4 Bd7 24. Rac1 Bf8 25. Be2 { A fine double purpose move which vacates d3 for the
Knight and again prevents ... Pg5 } 25... Nc8 ( 25... g5 26. hxg5 Nxg5 27. Nxg5+ hxg5 28. Bh5+ Kg7 29. Nxe6+ Bxe6 30. Qxg5+ Kh7 31. Bg6+ Kg7 32. Rh7# ) 26. cxd5 cxd5 ( 26... Nxd6 27. dxe6+ Bxe6 28. Nxe6 Kxe6 29. Rxc6 ) 27. Bxf8 Nxf8 28. Rc5 Na7 29. Nd3 Kg7 30. Rhc1 Rc8 31. Rxc8 Bxc8 32. Qc3 { All White's
objectives are realized; he controls the open c-file, and can now proceed to
force a decision } 32... Kh7 33. Qc5 Rg7 34. Qb6 Qe7 35. Nc5 g5 { One last attempt } 36. hxg5 hxg5 37. Ne1 $1 { Black's attack can get no further } 37... Ng6 ( 37... f4 38. Bg4 ) 38. Ned3 f4 39. Rh1+ Kg8 40. Bg4 fxg3 41. fxg3 Nh4+ 42. gxh4 gxh4 43. Nf2 Rf7 44. Nxe6 Kh7 45. Qd6 1-0
[Event "StPetersburg"]
[Site "?"]
[Date "1909.??.??"]
[Round "?"]
[White "Forgacs"]
[Black "Tartakower"]
[Result "1-0"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "C13"]
[PlyCount "55"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Ne4 6. Nxe4 Bxg5 7. Nxg5 Qxg5 8. g3 c5 9. c3 Nc6 10. f4 Qe7 11. Nf3 Bd7 12. Qd2 O-O 13. Bd3 c4 14. Bc2 b5 15. O-O a5 16. Rae1 b4 17. f5 { Starting a breakthrough in grand style. The more
mechanical approach 17. Pg4 would give Black an opportunity to play ... Pf5 } ( 17. g4 f5 ) 17... exf5 ( 17... -- 18. f6 ) ( 17... f6 18. fxe6 Bxe6 19. exf6 Rxf6 20. Bxh7+ Kxh7 21. Ng5+ Kh8 22. Rxf6 Qxf6 23. Rxe6 ) 18. g4 $1 { The point of the previous move } 18... fxg4 ( 18... f4 19. Qxf4 Be6 20. Ng5 h6 21. Nh7 Rfe8 22. g5 ) 19. Ng5 g6 ( 19... h6 20. Nh7 Rfd8 21. Nf6+ gxf6 22. Qxh6 ) 20. Rf6 Kg7 21. Ref1 Be8 22. Qf4 Nd8 ( 22... -- 23. Ne6+ fxe6 24. Rxf8 ) 23. e6 $1 Ra6 24. Qe5 Kh6 25. R1f5 fxe6 26. Nf7+ Qxf7 ( 26... Kg7 27. Rxe6+ ) ( 26... Rxf7 27. Rh5+ Kg7 28. Rxg6+ Kf8 29. Qh8# ) 27. Rh5+ Kg7 28. Rxg6# 1-0
[Event "Essen"]
[Site "?"]
[Date "1948.??.??"]
[Round "?"]
[White "Unzicker"]
[Black "Czaya"]
[Result "1-0"]
[Annotator "09: Blocked Oblique Formations"]
[ECO "C16"]
[PlyCount "49"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 b6 5. Qg4 Bf8 6. Nh3 h5 7. Qf3 c6 8. Ng5 Qd7 9. Bd2 Ba6 10. O-O-O g6 { Black's immediate plan is to trade his bad
Bishop for White's good one, and then occupy f5 with a Knight } 11. h3 $1 Bxf1 ( 11... Nh6 12. g4 { stopping the f5 plan } ) 12. Rhxf1 Bh6 13. g4 Qe7 14. h4 $1 { This looks to be anti-positional, for Black will now be able to carry out
his plan } 14... hxg4 15. Qg3 $3 ( 15. Qxg4 Bg7 { Black's' plan } ) 15... Bg7 16. f3 { This is the whole idea. At the cost of a pawn, White now gets open the f-file } 16... gxf3 17. Rxf3 Nh6 { Black's still doesn't believe it; he hopes to block the f-file with the Knight } 18. Nxf7 $1 { The real point of White's 14th move } 18... Nxf7 19. Qxg6 O-O ( 19... Bf8 20. Rdf1 ) ( 19... Kf8 20. Rdf1 ) 20. Rg1 Nxe5 ( 20... Nh8 21. Rxf8+ Kxf8 22. Qh7 -- 23. Bh6 ( 23. Rxg7 Qxg7 24. Bh6 ) ) ( 20... Nd8 21. Rfg3 Rf7 22. Bh6 $18 ) 21. Rxf8+ Kxf8 22. Qh7 Qf7 23. Rxg7 Qf1+ 24. Nd1 Nf7 25. Qg8+ 1-0
[Event "Leningrad-Moskva"]
[Site "Leningrad-Moskva"]
[Date "1934.??.??"]
[Round "?"]
[White "Yudovich"]
[Black "Botvinnik"]
[Result "0-1"]
[Annotator "09: Normal Stonewall"]
[ECO "A95"]
[PlyCount "94"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ White plays for Pe4 } 1. c4 f5 2. d4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 d5 6. O-O O-O 7. Nc3 c6 8. Qc2 Qe8 9. Bf4 Qh5 10. b3 { If the central tension is to be
maintained, White must first take care to protect his c-pawn } 10... Nbd7 11. Rad1 Kh8 { Black's plan takes shape: ... Rg8 followed by ... Pg5 } 12. Kh1 $2 { From the sequel, it appears that this is not only unnecessary: it actually
puts the King on a worse square } 12... Rg8 13. e3 g5 14. Bc7 Ne8 15. Be5+ Nxe5 16. Nxe5 Nf6 17. f3 Bd6 18. e4 { White achieves his object, but it will soon be
apparent that Black has secured good counterchances } 18... Nd7 19. g4 ( 19. Nxd7 Bxg3 ) 19... Qe8 20. Nxd7 Bxd7 { Black has no objection now to liquidation in the centre } 21. e5 ( 21. exf5 exf5 22. cxd5 fxg4 23. dxc6 Qh5 $1 ) 21... Bb4 22. gxf5 exf5 23. cxd5 Bxc3 24. dxc6 { This pawn which White wins by this move is dearly bought } ( 24. Qxc3 cxd5 25. f4 $11 ) 24... Bxc6 25. Qxc3 Qe6 { Black secures control of d5 and
gets a sharp Kingside attack as compensation for the lost pawn. } 26. Qd2 Bd5 27. Rc1 Rg7 28. Rc2 f4 29. Qc1 Rag8 30. h3 h5 31. Kg1 g4 32. hxg4 hxg4 33. Kf2 Rh7 34. Rh1 g3+ 35. Ke1 Rxh1+ 36. Bxh1 Qh6 37. Bg2 Bc6 ( 37... Be6 ) 38. a4 Bd7 39. d5 Bf5 40. Rc7 Qh2 41. Qb2 Qg1+ 42. Bf1 Qe3+ 43. Be2 Be6 44. Qc2 Rg7 45. dxe6 Qg1+ 46. Kd2 Qd4+ 47. Ke1 Rxc7 0-1
[Event "Beverwijk"]
[Site "?"]
[Date "1946.??.??"]
[Round "?"]
[White "Stolz"]
[Black "Vlagsma"]
[Result "1/2-1/2"]
[Annotator "09: Normal Stonewall"]
[ECO "D30"]
[PlyCount "120"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ White plays for Pe4 } 1. d4 d5 2. c4 c6 3. Nf3 e6 4. Nbd2 f5 5. g3 Nf6 6. Bg2 Be7 7. O-O O-O 8. b3 Bd7 9. Bb2 Be8 { Black has developed in an unusual
way, omitting the maneuver ... Qe8-h5, and played instead to get his Queen
Bishop outside the pawn chain at once. In consequence, the e-pawn has lost its
natural protection, and White can attack this base immediately } 10. Ng5 Qc8 11. f3 Na6 12. Nh3 Nc7 13. e4 { White now has a distinct advantage, but how
to make further progress is another matter } 13... Bf7 { Correct. Black adopts a
waiting policy, not wishing to dissolve the central framework. The points d5
and e5 are well enough defended, and in such positions the closure by e5 is
nothing to fear } 14. Qe2 Re8 15. Kh1 g6 16. Nf4 Kg7 17. Nd3 h6 18. Ne5 { The beginning of a new plan, by which White manages to dissipate his advantage.
White should have continued to maneuver, aiming always to strengthen his
position while keeping the possibilities of Pe5 or Pc5 in hand. } ( 18. Rac1 { Kmoch's recommendation } ) 18... Nd7 19. exf5 $2 exf5 20. f4 { Now Black gains control of a support point at e4 } 20... Nf6 21. Nxf7 { The two Bishops, which White obtains by this move, are not very useful in a
closed position like this. If White had decided to exchange the Knight which
stood at e5, he should have done it a move earlier and not for the Bishop, but
for the Knight atd7 } 21... Kxf7 22. Nf3 Qe6 23. Qc2 Bd6 24. c5 Bf8 25. Ne5+ Kg7 26. Rae1 Ne4 { It is evident that White's operations have
achieved less than nothing. His Queen Bishop is a spectator, and it is Black's
Knight at e4 which controls the situation in the centre. The attempt to
undermine the Knight which follows now also leads to nothing } 27. g4 Kh7 28. gxf5 gxf5 29. Bh3 Be7 30. Qe2 Rg8 31. Qh5 Raf8 32. Bc1 Ne8 33. Be3 Ng7 34. Qf3 Ne8 35. b4 N8f6 36. a4 { There is nothing to be had on the g-file, so White
tries his luck on the other wing } 36... a6 37. Rc1 Rg7 38. b5 Rfg8 39. bxc6 bxc6 40. Qe2 Rg3 41. Rf3 Rxf3 42. Qxf3 Bd8 43. Rg1 Rxg1+ 44. Kxg1 { There is nothing much left in the game } 44... Ng8 45. Qh5 Ne7 46. Kh1 Nf6 47. Qf7+ Qxf7 48. Nxf7 Bc7 49. Bf1 a5 50. Bd3 Ne4 51. Ne5 Kg7 52. Kg2 Kf6 53. h4 Ke6 54. Be2 Nc3 55. Bh5 Nxa4 56. Bf7+ Kf6 57. Be8 Nc3 58. Nxc6 Nxc6 59. Bxc6 Ke6 60. Kf3 Ne4 { A draw was agreed ... this game gives a good idea of
the difficulty of overrunning a Stonewall formation } 1/2-1/2
[Event "England"]
[Site "It, Nottingham"]
[Date "1936.??.??"]
[Round "?"]
[White "Reshevsky"]
[Black "Botvinnik"]
[Result "1/2-1/2"]
[Annotator "09: Normal Stonewall"]
[ECO "A95"]
[PlyCount "81"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Attack on the base pawn at c6 } 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. c4 d5 7. Nc3 c6 8. Rb1 Qe8 9. c5 Qh5 { With his 8th and 9th moves,
White lays his cards on the table. He intends an immediate assault against the
base c6. From what follows it appears that in this line Black's Queen
excursion to h5 is not particularly good, for the Queen will soon find it
necessary to return nearer to base } 10. b4 Ne4 11. Qc2 Nd7 12. b5 Bf6 13. Bf4 $1 { Not only preventing ... Pe5 but } 13... Qe8 ( 13... Ndxc5 14. Nd1 $1 Nd7 15. bxc6 bxc6 16. Qxc6 ) 14. Bc7 Rf7 15. Ba5 { The means adopted by White
for making his bad Bishop active is certainly noteworthy } 15... e5 16. e3 Nxc3 17. Bxc3 e4 18. Nd2 { We have now reached the formation studied with the e-pawn
forward. On the basis of these examples given there we can make the following
assertions:   1) Black has Kingside chances, but in view of White's defensive
set-up (pawns on e3 and g3, Bg2), it may not be easy to make anything concrete
out of them 2) White' Queenside attack is well advanced } 18... Nf8 19. f3 $1 { Another point in White's favour here. He does not have to wait for Black to
attack with ... Pg5 but can himself take the initiative in this sector. This
move involves a promising pawnsacrifice } 19... cxb5 ( 19... exf3 20. Rxf3 cxb5 21. Qb3 Bd7 22. Nf1 { White's King bishop comes vigorously into the fray - at
least regaining the sacrificed pawn at d5 } 22... -- 23. Rf2 -- 24. Rfb2 ) 20. fxe4 dxe4 21. d5 $1 { The point of White's 19th move } 21... Bxc3 22. Qxc3 Bd7 23. Nb3 Rc8 24. g4 $1 ( 24. Rfc1 -- 25. Nd4 ) 24... g6 ( 24... fxg4 25. Rxf7 Qxf7 26. Rf1 ) 25. Qd4 Qe7 26. Rbc1 Be8 27. Rf4 Rd8 28. Rcf1 Qd7 ( 28... Ne6 29. dxe6 Rxd4 30. exf7+ Bxf7 31. Nxd4 { getting two rooks and a knight for a Queen } ) 29. gxf5 gxf5 30. Bh3 Qxd5 31. Rxf5 ( 31. Bxf5 { the e-pawn must fall as well } ) 31... Qxd4 32. Nxd4 Rg7+ 33. Kh1 Bd7 34. Rh5 Bxh3 35. Rxh3 Rg5 36. Nf5 Rd7 37. Rh4 Rc7 38. Nh6+ Kg7 39. Nf5+ Kg8 40. Nh6+ Kg7 41. Nf5+ 1/2-1/2
[Event "Rio de Janeiro"]
[Site "?"]
[Date "1946.??.??"]
[Round "?"]
[White "Cruz"]
[Black "Eliskases"]
[Result "1-0"]
[Annotator "09: Normal Stonewall"]
[ECO "A95"]
[PlyCount "115"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Attack on the base e6 while maintaining central tension } 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. O-O O-O 6. c4 d5 7. Nc3 c6 8. Qc2 Qe8 9. Bg5 h6 10. Bxf6 $1 Bxf6 11. e3 Nd7 { Since a Knight is worth at least as much as a
Bishop in a closed game line the Stonewall, White's exchange on his 10th move
is strategically justified } ( 11... dxc4 { Going for an open game } 12. Nd2 e5 ) 12. Nd2 Rf7 { too tame } ( 12... g5 ) ( 12... Be7 13. -- Nf6 ) 13. b4 $1 Nf8 14. b5 g5 15. Rab1 h5 16. Rfc1 h4 17. bxc6 bxc6 18. cxd5 exd5 ( 18... cxd5 19. Nb5 $18 ) 19. Na4 { White has achieved all his objectives: open
files for his Rooks, and a weak c-pawn to shoot at } 19... Bd7 20. Nc5 hxg3 21. hxg3 Rc8 22. Nb7 Be7 $2 ( 22... Qe6 ) 23. Nf3 Ng6 24. Nxg5 Bxg5 25. Nd6 Qf8 26. Nxc8 Qxc8 27. Bxd5 cxd5 28. Qxc8+ Bxc8 29. Rxc8+ Kg7 { After this series of forced moves, we can weigh things up, and the balance
comes down on White's side. As far as material goes, Black is not bad off, for
two minor pieces should be able to put up a good fight against a Rook and two
pawns. Positionally his game is a wreck; every pawn is weak. The technical
phase really falls outside our province, but we give it in brief for the sake
of completeness } 30. Rbc1 Be7 31. R1c7 a5 32. Rd7 Bb4 $1 33. Rcc7 Rxd7 34. Rxd7+ Ne7 35. Kg2 Kf6 36. Kf3 Ke6 37. Rb7 Bd6 38. g4 fxg4+ 39. Kxg4 a4 40. Rb2 a3 41. Rc2 Kf6 42. Rc3 Kg6 43. f3 Nf5 44. Rd3 Nh6+ 45. Kh4 Nf5+ 46. Kg4 Nh6+ 47. Kh4 Nf5+ 48. Kh3 Kg5 49. e4 Ng7 50. Rb3 Kf4 51. Rb6 Kxf3 52. Rxd6 Kxe4 53. Kg4 Kxd4 54. Ra6 Ne8 55. Kf3 Nc7 56. Rxa3 Nb5 57. Ra8 Nd6 58. a4 1-0
[Event "Saltsjobaden"]
[Site "?"]
[Date "1948.??.??"]
[Round "?"]
[White "Najdorf"]
[Black "Gligoric"]
[Result "1-0"]
[Annotator "09: Normal Stonewall"]
[ECO "A95"]
[PlyCount "101"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ White exchanges pawns at d5 and black recaptures with the e-pawn } 1. d4 e6 2. c4 f5 3. g3 Nf6 4. Bg2 Be7 5. Nc3 O-O 6. Nf3 d5 7. O-O c6 8. Bg5 Nbd7 9. cxd5 exd5 { In recapturing with the e-pawn, Black generally gets attacking
chances on the Kingside. Against this White usually works with a Queenside
offensive against the c-pawn } 10. e3 h6 11. Bxf6 Nxf6 12. Rb1 Ne4 $2 { Black sets to work too hastily. he should have guarded his e5 by ... Bd6 } ( 12... Bd6 ) 13. Ne5 Bd6 14. f4 { The big difference between the two
Knights at their respective strong points on the e-file is that White can take
the Black Knight whenever he chooses without suffering any unpleasant
consequences, Black can never take the White Knight without conceding White a
protected passed pawn } 14... Be6 15. Qe2 Bxe5 { Nevertheless Black does it } 16. fxe5 Qe7 17. Rbc1 Rac8 18. a3 c5 19. Bxe4 { In this closed position White
rightly thinks more of his Knight tan of the Bishop } 19... fxe4 20. Rxf8+ Rxf8 21. Rf1 Rxf1+ 22. Qxf1 cxd4 23. exd4 { Now each player has a protected passed
pawn, but Black's Bishop is inferior to the White Knight, the Black centre
pawns being on the wrong colour } 23... a6 24. Na4 Qg5 25. Qf4 Qh5 26. Nc3 Kh7 27. h4 Kg8 28. Kf2 Qe8 29. Ne2 Qc8 30. Ke1 Qe8 31. Qc1 Qg6 32. Qc3 Qg4 33. Qb3 b5 34. Nf4 Bf7 35. Qe3 g5 { This advance weakens the Kingside too much.
Black should have perservered with his waiting policy } 36. hxg5 hxg5 37. Ne2 Kg7 38. Nc3 Be6 39. Qf2 Kg8 40. Kd2 Bf7 41. Nd1 Qe6 42. Ne3 Qb6 43. Nf5 b4 44. a4 b3 ( 44... Kf8 45. Qe3 ( 45. Qh2 Qg6 46. Qh6+ Qxh6 47. Nxh6 Be6 48. g4 { to save the Knight .. Black could still save the game (Pirc) } ) 45... Qg6 ) 45. Qe3 $1 Qb4+ 46. Ke2 Qc4+ 47. Ke1 Qb4+ 48. Kf1 Kf8 49. Qxg5 Ke8 50. Nd6+ Kd7 51. Qg7 1-0
[Event "Moscow"]
[Site "Moscow"]
[Date "1947.??.??"]
[Round "?"]
[White "Keres"]
[Black "Botvinnik"]
[Result "0-1"]
[Annotator "09: Normal Stonewall"]
[ECO "A95"]
[PlyCount "159"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ White exchanges pawns at d5 and Black recaptures with the c-pawn } 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. c4 d5 7. Nc3 c6 8. Rb1 Kh8 { Keres has chosen a line which Reshevsky played against Botvinnik at Nottingham
and his plan should be to attack the c-pawn with hisb-pawn } 9. cxd5 ( 9. b4 $6 dxc4 ) ( 9. c5 { most logical } ) 9... cxd5 { This simple move crosses White's
plan ... now Rb1 is only a loss of time. It is worth noticing that in the
Najdorf-Gligoric game, this recapture with the c-pawn would have been less
good, since the Queen Knight was already on d7. In the present game, this
piece now has the better square c5, at its disposal } ( 9... exd5 10. b4 ) 10. Bf4 Nc6 11. Ne5 ( 11. Nb5 Nh5 ) 11... Bd7 12. Rc1 Rc8 13. Qd3 Nh5 14. Bd2 Bd6 15. Nxc6 Bxc6 16. Qf3 Qe8 17. Qd3 Nf6 18. a3 Rc7 19. Bg5 Ng4 20. Qd2 Nf6 21. Bf4 Qd7 22. Bxd6 Qxd6 23. Qf4 { The endgame will not be favourable for White, even
though his Bishop is on the right colour. In fact, this Bishop will find
nothing better to do than exchange itself for Black's bad Bishop. Meanwhile
Black's microscopic Queensdie advantage (Rooks already half doubled on the
c-file, and a small weakness produced by Pa3) will be very slowly brought to
fruition } ( 23. Rc2 ) 23... Qxf4 24. gxf4 Rfc8 25. e3 ( 25. Na2 Bb5 26. Rxc7 Rxc7 27. Rc1 { last chance of equality } ) 25... Bb5 26. Rfe1 Kg8 27. f3 ( 27. Bf1 Bxf1 28. Kxf1 Ne4 { Black penetrates on the c-file } ) 27... Bc4 28. Bf1 Ne8 29. Bxc4 Rxc4 30. Kf2 Nd6 31. Ke2 b5 32. Kd3 b4 33. Na2 ( 33. axb4 Rxb4 34. Rb1 Rcb8 35. Kc2 Nc4 ) ( 33. Ne2 bxa3 34. bxa3 Rxc1 35. Rxc1 Rxc1 36. Nxc1 Nc4 ) 33... bxa3 34. bxa3 Ra4 35. Rxc8+ Nxc8 36. Nc3 Rxa3 37. Kc2 Nd6 38. Rb1 Kf7 39. Rb4 Ra1 40. Kd3 Ra3 41. Kc2 Ra1 42. Kd3 Re1 43. Ra4 Nc4 44. Rxa7+ Kg6 45. e4 Re3+ 46. Kc2 Rxf3 47. exf5+ Kxf5 48. Rxg7 Rf2+ 49. Kb3 Rb2+ 50. Ka4 Rxh2 51. Rf7+ Kg6 52. Rf8 Nd6 53. Nb5 Nf5 54. Nc7 Re2 55. Ne8 Nxd4 56. Rf6+ Kh5 57. Rf7 Nf5 58. Rxh7+ Kg4 59. Rd7 Kxf4 60. Nc7 Ke5 61. Kb4 Rc2 62. Kb3 Nd4+ 63. Kb4 Rc4+ 64. Ka5 Nf5 65. Kb6 d4 66. Na6 Nd6 67. Nc5 Kd5 68. Nd3 e5 69. Rh7 Rc6+ 70. Ka5 Nc4+ 71. Kb5 Rb6+ 72. Ka4 Nb2+ 73. Ka5 Nc4+ 74. Ka4 Rb8 75. Nb4+ Ke6 76. Nc6 Nb2+ 77. Ka3 Nc4+ 78. Ka4 Rb1 79. Rh6+ Kf5 80. Nb4 ( 80. Nxd4+ exd4 81. Rf6+ Ke4 82. Rf4+ Kd3 83. Rxd4+ Kc3 84. Rd3+ Kc2 85. Rc3+ Kxc3 ) 0-1
[Event "New York"]
[Site "?"]
[Date "1924.??.??"]
[Round "?"]
[White "Reti"]
[Black "Bogolyubov"]
[Result "1-0"]
[Annotator "09: Normal Stonewall"]
[ECO "A13"]
[PlyCount "49"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The Stonewall deformed by exchange of pieces on e4 } 1. Nf3 d5 2. c4 e6 3. g3 Nf6 4. Bg2 Bd6 5. O-O O-O 6. b3 Re8 7. Bb2 Nbd7 8. d4 c6 9. Nbd2 Ne4 10. Nxe4 dxe4 11. Ne5 f5 { This games shows the difficulties caused by Black's
premature ... Ne4, which has produced some sort of deformed Stonewall. When
the Black Knight is exchanged at e4, Black does best to recapture with the
f-pawn, and this of course, requires that Black should have played ... Pf5
before inviting the Exchange } 12. f3 $1 exf3 13. Bxf3 { White means to break the position wide with Pe4 } ( 13. exf3 ) 13... Qc7 14. Nxd7 Bxd7 15. e4 e5 ( 15... -- 16. e5 Be7 17. d5 ) 16. c5 Bf8 17. Qc2 $1 exd4 18. exf5 Rad8 19. Bh5 { Beginning the decisive attack } 19... Re5 20. Bxd4 Rxf5 21. Rxf5 Bxf5 22. Qxf5 Rxd4 23. Rf1 Rd8 24. Bf7+ Kh8 25. Be8 $3 { interference:) } 1-0
[Event "Beverwijk"]
[Site "?"]
[Date "1951.??.??"]
[Round "?"]
[White "Donner"]
[Black "Kieninger"]
[Result "1-0"]
[Annotator "09: Normal Stonewall"]
[ECO "A93"]
[PlyCount "129"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Black exchanges dark-squared Bishops before proceedig with the attack on the
c-pawn } 1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. Nf3 Be7 5. O-O O-O 6. b3 c6 7. c4 d5 8. Ba3 Bxa3 9. Nxa3 Qe7 10. Qc1 Nbd7 { The Exchange of White's bad Bishop
for Black's good King Bishop is usually a good policy for White. In particular,
the fact that the King Bishop usually plays an important part in Black's
Kingside attack means that White will now have more time for developing his
Queenside operations } 11. Qb2 { An important move, directed against the possibility of ... Pe5 by Black } 11... Ne4 12. e3 Nd6 13. Ne5 ( 13. c5 Nf7 14. b4 e5 ) 13... Nxe5 14. dxe5 Nf7 15. f4 Bd7 16. Rac1 Rfc8 17. Rf2 Be8 18. Rfc2 ( 18. c5 b6 $1 19. b4 a5 $1 ) 18... dxc4 ( 18... -- 19. cxd5 exd5 20. Bxd5 ) 19. Nxc4 Rd8 20. Bf3 Rd7 21. Rd2 Rxd2 22. Qxd2 Rd8 23. Qc2 Rd7 ( 23... c5 { to set the Queenside majority into motion } 24. Nd6 b6 25. Nxe8 Qxe8 26. e4 g6 27. exf5 gxf5 { White has only a slight pull } ) 24. Rd1 Qd8 25. Rxd7 Qxd7 26. b4 $1 { At last comes this advance, which to all intents and purposes
de-molishes the Stonewall } 26... b6 27. Nd2 Nd8 ( 27... c5 28. bxc5 bxc5 29. Nb3 ) 28. Nb3 Qe7 29. Qc4 Kf8 30. Kf2 Bd7 31. Nd4 { With Black's c-pawn under
vigorous pressure White now arranges his pieces as effectively as possible for
a central breakthrough with Pe4 and eventually Pg4 } 31... c5 $2 { This method of raising the siege results in the loss of a pawn } 32. bxc5 Qxc5 33. Qxc5+ bxc5 34. Nb3 c4 35. Na5 c3 36. Ke2 Bb5+ 37. Kd1 Bd3 ( 37... Ba4+ 38. Kc1 Ke7 39. Bd1 Bb5 40. Kc2 Ba4+ 41. Nb3 ) 38. Kc1 Ke7 39. Nb3 g5 40. a3 g4 41. Bg2 Nf7 42. Nc5 Be2 43. Kc2 h5 44. Kxc3 Nh8 45. Bb7 Ng6 46. Bc8 Nf8 47. Kb4 Bf3 48. Ka5 Bd5 49. Ka6 Ng6 50. Kxa7 h4 51. Bb7 h3 52. a4 Nh4 53. Bxd5 exd5 54. a5 Nf3 55. a6 Nxh2 56. Kb6 Nf1 57. a7 h2 58. a8=Q h1=Q 59. Qb7+ Kf8 60. Ne6+ Ke8 61. Qc6+ Ke7 62. Qd6+ Kf7 63. Qd7+ Kg6 64. Qg7+ Kh5 65. Qh7# 1-0
[Event "Budapest"]
[Site "?"]
[Date "1952.??.??"]
[Round "?"]
[White "Geller"]
[Black "Szabo"]
[Result "1-0"]
[Annotator "09: Normal Stonewall"]
[ECO "A92"]
[PlyCount "71"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The modern way of fighting agains the Stonewall - by installing the Knights
at d3 and f3 } 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. c4 d5 7. Nbd2 c6 8. Ne5 Nbd7 9. Nd3 Qe8 { here we see White adopting the latest,
and - as it seems - the most effective, means of meeting the Stonewall. By
placing his Knights on d3 and f3, he keeps all the central points under
observation, and makes Black's task - the engineering of a Kingside attack -
very difficult } 10. Qc2 { To relieve the Knight from guarding the c-pawn } 10... g5 ( 10... Bd6 { Playing into his opponent's hands } 11. Nf3 Ne4 12. Bf4 Bxf4 13. gxf4 { White holds all the trumps. He can operate at will on the Queenside or
on the open g-file } ) 11. Nf3 Ne4 ( 11... h6 { According to Botvinnik, the
greatest expert in the domain of the Stonewall, 11. ... Ph6 is stronger } ) 12. Rb1 $1 Bf6 13. b4 b5 { Otherwise White plays Pb5 } 14. c5 a5 15. a3 { Wisely White avoids the complications of bxa5 } ( 15. bxa5 Rxa5 16. Nfe5 Bxe5 17. dxe5 Qe7 18. f3 Nexc5 19. Bd2 Nxd3 20. Bxa5 N3xe5 { Tolush .. favourable game to Black } ) 15... axb4 16. axb4 g4 17. Nfe5 Nxe5 ( 17... Bb7 18. Bh6 Bg7 19. Bxg7 Kxg7 20. f3 $16 ) 18. dxe5 Bd8 19. Bh6 Rf7 20. f3 $1 { It is apparent that the Black's Knight on e4 is not well placed } 20... Bg5 ( 20... gxf3 21. exf3 Ng5 22. h4 ) 21. Bxg5 Nxg5 22. fxg4 Rfa7 { Black tries to stem the tide by means of a counterattack } ( 22... fxg4 23. Nf2 h5 24. Qg6+ ) 23. gxf5 exf5 24. Qd2 Nf7 ( 24... Ne4 25. Qh6 ) 25. Qf4 Ra2 ( 25... Re7 26. Ra1 Rxa1 27. Rxa1 Nxe5 28. Nxe5 Rxe5 29. Bf3 { invasion on a-file } ) 26. Qe3 Qe7 27. Bh3 Ng5 28. Bxf5 d4 29. Qxd4 Rxe2 30. Bxc8 Raa2 31. Nb2 Rxe5 32. Rbd1 Re2 33. Rd2 Rxd2 34. Qxd2 Ne4 35. Qf4 Rxb2 36. Be6+ $1 1-0
[Event "Amsterdam"]
[Site "?"]
[Date "1950.??.??"]
[Round "?"]
[White "O'Kelly"]
[Black "Donner"]
[Result "1-0"]
[Annotator "09: Normal Stonewall"]
[ECO "A80"]
[PlyCount "83"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Another example of the modern treatment agains the Stonewall } 1. d4 e6 2. Nf3 f5 3. g3 Nf6 4. Bg2 Be7 5. O-O O-O 6. b3 d5 7. Bb2 Qe8 8. Ne5 Nbd7 9. Nd3 Bd6 10. c4 c6 11. Nd2 { The difference between this and the previous example is
that White's c-pawn is protected by the b-pawn, and the Queen Bishop stands on
b2 rather than the diagonal to h6. At b2 the Bishop has some useful functions;
in particular, it makes e5 more difficult for Black } 11... b6 { The advance ...
Pe5 would only weaken the d-pawn, so Black develops his Queen Bishop in
fianchetto } 12. Rc1 $1 { The right tactics. White's attack must come ultimately
on the Queenside and he will therefore need to keep the option of c5. } ( 12. f3 e5 { Black's d-pawn weakness is offset by that of White's e-pawn } ) 12... Ne4 13. Nf3 Bb7 14. Nfe5 Rc8 15. f3 Nef6 16. c5 $1 bxc5 17. Nxc5 Nxc5 18. dxc5 Bc7 19. Qd4 { White's aim is accomplished. He has established a Queenside
pawn majority and has blocked - at least for the time being - Black's
preponderance in the centre } 19... Ba6 20. Rfe1 Bb5 21. a4 Ba6 22. Bc3 Rb8 23. Rb1 Rb7 24. b4 Bxe5 25. Qxe5 Qe7 26. Qe3 Nd7 $2 { Preparing to push the e-pawn } ( 26... Bc4 ) 27. f4 $2 { Deep in his positional plan, White overlooks the win of a piece } ( 27. b5 cxb5 28. c6 ) 27... Bc4 28. Bd4 a6 29. Rec1 Rfb8 30. Rxc4 { An exchange sacrifice which puts new life into the Queenside attack } 30... dxc4 31. Qc3 e5 ( 31... Nf6 32. Bxc6 ( 32. Qxc4 Nd5 33. Qxa6 Rxb4 34. Rxb4 Rxb4 35. e3 Qb7 ) ( 32. Be5 Nd5 $1 ) ( 32. Bxf6 $1 Qxf6 33. Qxc4 Rc7 34. e3 Ra8 35. Rd1 { giving White the best winning chances } ) 32... Nd5 33. Qxc4 ( 33. Bxd5 exd5 ) 33... Rxb4 34. Rxb4 Rxb4 ) 32. fxe5 Qe6 33. e4 $1 a5 ( 33... fxe4 34. Bf1 Kh8 35. Bxc4 Qg4 36. Rf1 Rxb4 37. e6 Nf8 38. Qxb4 ) 34. b5 cxb5 35. exf5 Qxf5 36. Rf1 Qe6 37. Bxb7 Rxb7 38. Qf3 Rb8 39. c6 b4 40. cxd7 Qxd7 41. Bc5 h6 42. Bd6 1-0
[Event "Karlsbad"]
[Site "Karlsbad"]
[Date "1929.??.??"]
[Round "10"]
[White "Capablanca"]
[Black "Treybal"]
[Result "1-0"]
[Annotator "09: Anti-Stonewall"]
[ECO "D30"]
[PlyCount "115"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Closing of the Kingside and breakthrough on the Queenside } 1. d4 d5 2. c4 c6 3. Nf3 e6 4. Bg5 Be7 5. Bxe7 Qxe7 6. Nbd2 f5 7. e3 Nd7 8. Bd3 Nh6 9. O-O O-O 10. Qc2 g6 11. Rab1 Nf6 12. Ne5 Nf7 13. f4 Bd7 { The exchange of Bishops
at move 5 has enabled White to set up a favourable Anti Stonewall, since Black
has the Bad Bishop. Black's .. Bd7 is a new sin of omission, allowing White to
retain the Knight on e5 } ( 13... Nxe5 ) 14. Ndf3 Rfd8 15. b4 Be8 16. Rfc1 a6 17. Qf2 Nxe5 18. Nxe5 Nd7 19. Nf3 $1 { In accordance with the principle that the
sie having the greater freedom should seek to keep the pieces on the board } 19... Rdc8 20. c5 Nf6 21. a4 Ng4 22. Qe1 Nh6 23. h3 Nf7 24. g4 $1 { Not primaril
y to start operations on this wing, but rather to deprive Black of his last
counterchance ... Pg5. Besides all this, it must be considered a point in
White's favour that Black will now be hampered in allhis movements by having
to reckon all the time with the possibility that White may yet open an
offensive on the Kingside } 24... Bd7 25. Rc2 Kh8 26. Rg2 Rg8 27. g5 Qd8 28. h4 Kg7 29. h5 Rh8 30. Rh2 Qc7 31. Qc3 Qd8 32. Kf2 Qc7 33. Rbh1 Rag8 34. Qa1 Rb8 35. Qa3 Rbg8 36. b5 { White has retained twofold possibilities, and has kept
Black's forces so tied down on the Kingside that he is now in a position to
open a file on the far side without Black being able to contest it } 36... axb5 37. h6+ $1 { At last he closes the Kingside, and transfers the whole course of
the battle definitely to the other flank } 37... Kf8 38. axb5 Ke7 39. b6 Qb8 40. Ra1 Rc8 ( 40... Qa8 41. Qc3 Qd8 42. Ra7 ) 41. Qb4 Rhd8 42. Ra7 Kf8 43. Rh1 Be8 44. Rha1 Kg8 45. R1a4 Kf8 46. Qa3 { Black is completely encircled, and it
remains for White to conquer b7. He is anxious to rule out any possibility of
Black breaking the cordon on the Kingside by a Knight sacrifice. The way he
chooses is not the shortest, but he has ample time } 46... Kg8 47. Kg3 Bd7 48. Kh4 Kh8 49. Qa1 Kg8 50. Kg3 Kf8 51. Kg2 Be8 52. Nd2 Bd7 53. Nb3 Re8 ( 53... Be8 54. Na5 Rd7 55. Nxb7 Rxb7 56. Ra8 ) 54. Na5 Nd8 55. Ba6 $1 bxa6 56. Rxd7 Re7 57. Rxd8+ Rxd8 58. Nxc6 1-0
[Event "Buenos Aires"]
[Site "?"]
[Date "1939.??.??"]
[Round "?"]
[White "Petrov"]
[Black "Grau"]
[Result "1-0"]
[Annotator "09: Anti-Stonewall"]
[ECO "D06"]
[PlyCount "73"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Qb3 Nc6 5. Bd2 Rb8 6. e3 a6 7. Bd3 Bxd3 8. Qxd3 Nb4 9. Bxb4 Bxb4+ 10. Nbd2 Nf6 11. O-O O-O 12. c5 Bxd2 13. Nxd2 c6 14. f4 Nd7 15. b4 f5 $2 { Although Black's situation is better than the previous
example (his bad Bishop exchanged for White's good one is a point in his
favour), he is still in an unenviable position, as the following play will
confirm } 16. a4 Qc7 17. Rfc1 Ra8 18. b5 Rfb8 19. Nf3 axb5 20. axb5 Qd8 21. b6 Rxa1 22. Rxa1 h6 ( 22... Ra8 23. Ra7 Rxa7 24. bxa7 Qa8 25. Qa3 Kf8 26. Qa5 ) 23. Ra7 Kf7 24. Qe2 g6 25. Nd2 Nf6 26. Nb3 Ke8 27. Na5 Qc8 28. Qa2 Nd7 { Everything is guarded, and it looks as though Black can hold the game. He is
terribly cramped, but the lack of space is less serious than was the case in
Capablanca v Treybal game, simply because more pieces have been exchanged.
Nevertheless, White has virtually a forced win } 29. Qf2 Nf6 30. Qh4 Ng8 { The only way to keep the Queen out } 31. g4 Kf7 ( 31... fxg4 32. Qxg4 Kf7 33. f5 $1 { The White Queen forces entry in every variation } ) 32. g5 $1 { An uncommonly fine move, which by controlling f6, cuts off the Knight from d7 } 32... h5 33. Qf2 Ke8 34. Qa2 Ne7 ( 34... Kd8 35. Nxb7+ Rxb7 36. Ra8 Rb8 37. Rxb8 Qxb8 38. Qa7 Kc8 39. Qf7 ) 35. Nxb7 Rxb7 36. Rxb7 Qxb7 37. Qa7 1-0
[Event "Soest"]
[Site "?"]
[Date "1941.??.??"]
[Round "?"]
[White "Kramer"]
[Black "Koomen"]
[Result "1-0"]
[Annotator "09: Anti-Stonewall"]
[ECO "D31"]
[PlyCount "69"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

1. d4 d5 2. c4 e6 3. Nc3 c6 4. e3 f5 5. f4 Nh6 6. Nf3 Be7 7. Be2 O-O 8. O-O Kh8 9. Bd2 Rg8 { In contrast with both of the foregoing examples Black here
goes straight for his target, and already threatens ... Pg5. The fact that
White nevertheless keeps teh upper hand speaks well for the effectiveness of
the Anti-Stonewall } 10. g3 $1 Nf7 ( 10... g5 11. fxg5 Bxg5 12. Nxg5 Qxg5 13. e4 ) 11. c5 g5 12. b4 Nd7 13. b5 gxf4 14. exf4 Nf6 15. bxc6 bxc6 16. Qa4 Qc7 17. Rab1 Ne4 18. Nxe4 dxe4 19. Ne5 Nxe5 20. fxe5 Qd7 { Black's action on
the g-file is halted, while White's on the Queenside has achieved important
results - an open b-file, and weak pawns at a7, c6 and e6 } 21. Be3 Qc7 22. Rb3 Bd7 23. Rfb1 Rgb8 24. Bd2 Bd8 25. Ba6 Rxb3 26. Qxb3 Kg8 27. Bc4 ( 27. Qb7 Qxb7 28. Rxb7 Bc8 $1 ) 27... Kf7 28. Rf1 $1 { A sudden switch to the Kingside
leads to a rapidly decisive attack - a typical occurence in this sort of
positions } 28... Ke7 29. Qe3 Be8 30. Qh6 Bf7 ( 30... Bg6 31. Qg7+ Ke8 32. Qg8+ ) 31. Qxh7 Kf8 ( 31... -- 32. Rxf5 ) 32. Qh8+ Ke7 33. Qg7 Ke8 34. Bh6 Be7 35. Qh8+ 1-0
[Event "Goteborg"]
[Site "?"]
[Date "1920.??.??"]
[Round "?"]
[White "Carls"]
[Black "Euwe"]
[Result "0-1"]
[Annotator "09: Pseudo-Stonewall"]
[ECO "A13"]
[PlyCount "54"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ The weakness of the Pseudo Stonewall } 1. c4 e6 2. Nc3 c5 3. e4 Nc6 4. f4 Nge7 5. Nf3 d5 6. d3 g6 7. Be2 Bg7 8. O-O O-O { White's great trouble in the
Pseudo-Stonewall is the weak square at d4. Black can take advantage of this by
opening the d-file and basing his whole strategy on this one weakness. In this
position, the Black bishop on g7 is particularly powerful } 9. Bd2 ( 9. Be3 d4 ) 9... Nd4 10. Be1 b6 11. Bh4 { Intending a Kingside attack, but it soon becomes
clear that Black has nothing to fear .. thanks largely to hs centralized
Knight on d4 } ( 11. Bf2 ) 11... Bb7 12. cxd5 exd5 13. Nxd4 ( 13. Nxd5 Bxd5 14. exd5 Ndf5 { quickly recovering the pawn with an excellent position } ) 13... Bxd4+ 14. Kh1 Qd7 15. f5 $2 { The long prepared attack; but it really has no
chance of achieving anything, since Black's pieces are posted much better than
White's } ( 15. Bxe7 Qxe7 16. Nxd5 Bxd5 17. exd5 ) 15... dxe4 16. dxe4 gxf5 17. exf5 ( 17. Bxe7 Qxe7 18. exf5 Rad8 19. Qe1 Rfe8 $17 ) 17... Nxf5 18. Bf2 ( 18. Bg4 Nxh4 19. Bxd7 Bxg2# ) 18... Kh8 19. Bg4 Rg8 20. Bxd4+ cxd4 21. Rxf5 ( 21. Bxf5 Bxg2+ 22. Kg1 Bc6+ 23. Kf2 Qxf5+ ) 21... Rxg4 22. Qxg4 Rg8 23. Qxg8+ ( 23. Rg5 Qxg4 ) 23... Kxg8 24. Rg5+ Kf8 25. Nd1 Qe7 26. h4 Qe1+ 27. Kh2 Qxh4+ 0-1
[Event "Munich"]
[Site "?"]
[Date "1941.??.??"]
[Round "?"]
[White "Lundin"]
[Black "Mross"]
[Result "1-0"]
[Annotator "09: Pseudo-Stonewall"]
[ECO "A05"]
[PlyCount "69"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Opening a file in the Double Pseudo-Stonewall } 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 4. O-O g6 5. d3 Bg7 6. e4 d6 7. c4 O-O 8. Nc3 Nbd7 9. Nh4 e5 10. f4 h6 11. Nf3 Kh7 12. f5 g5 13. g4 $1 Ne8 14. Kf2 Rh8 15. Rh1 Kg8 16. h4 f6 17. Be3 Qe7 18. Qd2 c5 { To open the h-file at this moment would obviously lead only
to the exchange of a pair of Rooks. Some preparation is necessary, and White's
first step must evidently be to double the Rooks } 19. Rh3 Nc7 20. Rah1 Kf7 21. Ne2 { The knight is bound for h5, there to reinforce the action of the Rooks } 21... a5 { Black deprives himself of his only chance for counterplay (... Pb5) } 22. Ng3 Rag8 23. Nh5 Bc6 24. Ke1 ( 24. R1h2 -- 25. Qc1 -- 26. Qh1 ) 24... Qd8 ( 24... Bf8 25. Nxf6 Nxf6 26. hxg5 Nxg4 $13 ) 25. Nxg7 Kxg7 26. hxg5 hxg5 27. Nxg5 $1 { A decisive sacrificce which enables White's Kingside pawns to advance } 27... fxg5 28. Bxg5 Nf6 29. Bh6+ $1 Kf7 30. g5 Nce8 ( 30... Ng4 31. g6+ Ke7 ( 31... Ke8 32. Bg5 ) 32. Bg5+ Nf6 33. Rh7+ ) 31. gxf6 Qxf6 32. Bf3 Ba4 33. Rh5 $1 Qe7 34. Bg5 Qf8 35. Rh7+ 1-0
[Event "Moskva"]
[Site "Moskva"]
[Date "1935.??.??"]
[Round "6"]
[White "Capablanca"]
[Black "Ragozin"]
[Result "1-0"]
[Annotator "09: Wyvill Formation"]
[ECO "E24"]
[PlyCount "97"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ How Black should not treat the Wyvill formation } 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 d6 6. Qc2 O-O 7. e4 e5 8. Bd3 c5 9. Ne2 Nc6 10. d5 Ne7 $2 { Here we see the Wyvill formation in its worst light for Black who  1)
has blocked c5 so that his Knight can't use it  2) Has castled Kingside  3)
can't now put pressure on the c-pawn, as he could have done by 10... Na5,
followed by ... Pb5 and ... Ba6 } 11. f3 Nd7 12. h4 Nb6 13. g4 f6 { Permits White to open the g-file, but also enables his own King to escape to
the Queenside } 14. Ng3 Kf7 15. g5 Ng8 16. f4 Ke8 17. f5 Qe7 18. Qg2 { Now that B
lack is deprived of all chance of counterplay, White can prepare the decisive
action at leisure. It is clear that the g-file will be the scene of the final
showdown } 18... Kd8 19. Nh5 Kc7 20. gxf6 gxf6 21. Ng7 Bd7 22. h5 Rac8 23. h6 { This support point at g7 is of the utmost importance. White will be able to
switch the Knight at will to e6 and replace it with a Rook } 23... Kb8 24. Rg1 Rf7 25. Rb1 Qf8 26. Be2 Ka8 27. Bh5 Re7 28. Qa2 Qd8 29. Bd2 Na4 { Again we witness combined operations by White on both flanks } 30. Qb3 Nb6 ( 30... b6 31. Ne6 ) 31. a4 $1 Rb8 ( 31... Bxa4 32. Qa2 Bd7 33. Ne6 Bxe6 34. dxe6 Rec7 35. Rxb6 ) 32. a5 Nc8 33. Qa2 Qf8 34. Be3 b6 35. a6 Qd8 36. Kd2 Qf8 37. Rb2 Qd8 38. Qb1 b5 { An attempt to get some counterplay even now.
If he continues to do nothing, White will penetrate via the g-file } 39. cxb5 Nb6 40. Qa2 c4 41. Qa3 Qc7 42. Kc1 Rf8 43. Rbg2 Qb8 44. Qb4 Rd8 45. Rg3 Rf8 46. Ne6 Bxe6 ( 46... Rc8 47. Bxb6 axb6 48. a7 ) 47. dxe6 Rc7 48. Qxd6 Ne7 49. Rd1 1-0
[Event "14"]
[Site "Budapest  (26.03.52)"]
[Date "1952.??.??"]
[Round "?"]
[White "Keres"]
[Black "O'Kelly"]
[Result "1-0"]
[Annotator "09: Wyvill Formation"]
[ECO "E31"]
[PlyCount "139"]
[Source "Hays Publishing"]
[SourceDate "1964.01.01"]

{ Black sets up a defensive position on the Kingside } 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 h6 5. Bh4 c5 6. d5 Bxc3+ 7. bxc3 e5 8. e3 d6 9. Qc2 Nbd7 10. Bd3 Qe7 { A comparison with the previous game shows Black is unfavourably
placed. Again he has occupied c5 with a pawn, and again the White c-pawn can
not be put under pressure. One thing, however, is different: Black has not
castled and this is a very important point } 11. f3 ( 11. e4 g5 12. Bg3 Nh5 $132 ) 11... g5 12. Bg3 Nh5 13. Ne2 Ndf6 ( 13... Nxg3 14. Nxg3 { White controls important traffic junctions at e4 and f5 } ) 14. Rb1 Ng7 15. Bf2 { Clearing a route for his Knight to go to f5 } 15... h5 { weakening a grip on f4 } 16. h4 $1 ( 16. Ng3 h4 17. Nf5 Nxf5 18. Bxf5 Bxf5 19. Qxf5 Nh5 ) 16... g4 17. e4 Ng8 ( 17... gxf3 18. gxf3 { opening the g-file plays into White's hands } ) 18. Be3 f6 19. f4 { Before embarking on this advance, White induced the
weakening move 18. ... Pf6. This is a very important point, for otherwise
Black, but taking the pawn, would have obtained for himself a valuable square
at e5. } 19... Qc7 ( 19... exf4 20. Nxf4 { White now gets invasion points at e6 and g6 which are even more valuable } ) 20. O-O Ke7 21. Rf2 Ne8 22. Rbf1 Bd7 23. Qd1 b6 24. Ng3 ( 24. Bc2 { White can't make his bad bishop active by } 24... a6 25. Ba4 b5 ) 24... a5 ( 24... a6 25. Rb2 b5 26. Qb1 ) 25. Rb2 Ra6 26. Bc2 a4 27. a3 Kd8 28. Rb1 Rh7 29. Qd2 Kc8 30. Rbd1 Qb7 31. Ne2 Ne7 { It will become apparent that this Knight
can not be spared from g8; Black's best policy was to continue playing a
waiting game } 32. Nc1 Ng6 33. Nd3 Qc7 34. Qf2 Kd8 35. Rd2 Kc8 36. Qe1 Kd8 37. Rdf2 Kc8 38. Qd1 exf4 ( 38... Kd8 39. Nb2 Qa7 40. fxe5 Nxe5 41. Rxf6 ) 39. Nxf4 Ne5 ( 39... Nxf4 40. Rxf4 Rf7 41. R4f2 Rf8 42. e5 dxe5 43. Bg6 ) 40. Ne6 Qa7 ( 40... Bxe6 41. dxe6 Qc6 42. Rxf6 ) 41. Rxf6 Nxf6 42. Rxf6 b5 ( 42... Nxc4 43. Bc1 ) 43. cxb5 ( 43. Qf1 $1 -- 44. Rf8+ Kb7 45. Qf5 Re7 46. Bg5 ) 43... Bxb5 { Now Black can restore the balance though he will not have a path of roses } 44. Rf8+ Kb7 45. Qe1 Rb6 46. Qg3 Bd3 47. Nd8+ Kc7 48. Bxd3 Nxd3 49. Nc6 Rxc6 50. dxc6 Kxc6 51. Bf4 c4+ 52. Kh2 Rf7 $1 53. Rc8+ ( 53. Rxf7 Qxf7 54. Bxd6 Qf2 ) 53... Kd7 54. Be3 Qa6 55. Rb8 Qc6 56. Rb6 Qc7 57. Rb5 Qc6 58. Rb6 Qc7 59. Bd4 Re7 60. Rb5 Rxe4 61. Rxh5 Kc6 62. Rg5 Qd7 63. Rg6 Rf4 64. Qe3 Qd8 65. g3 Rf2+ 66. Kg1 Qf8 67. Qe4+ Kc7 68. Rg7+ Rf7 69. Qxg4 Kb8 70. Rg8 1-0