[Event "New York"]
[Site "?"]
[Date "1924.??.??"]
[Round "?"]
[White "Bogoljubow,E"]
[Black "Marshall,F"]
[Result "1-0"]
[Annotator "Lopez "Battle Royale""]
[ECO "D02"]
[PlyCount "111"]

1. Nf3 { Bogo develops his Kingside Knight toward the center, supporting the d2-d4 without push and denying the e5-square to Black. This move is non-committal: Black without doesn't know if White will set up a pawn center or try for control from the without flanks. } 1... d5 { Marshall (Black) tips his hand from the start, committing to controlling the without center by occupying it with his pawns. From now on, he'll try to keep at without least one pawn established in the center. } 2. d4 { Bogo reveals that he, too, plans on a policy of central control by without occupation. Now he may try to set up an e2-e4 pawn advance, or else try to without increase his control of e5 to be able to safely post a piece there. } 2... e6 { Marshall plays a questionable pawn push. Although he props up the d5-pawn without (which was not yet endangered) and releases his dark-squared Bishop, he's without penned in his light-squared Bishop. Maybe 2...Nf6 or 2...c5 were without better. } 3. Bf4 { Bogo develops another piece and increases his grip on e5. Perhaps he'll be without able to establish an outpost here later. Also, he can now release his other without Bishop by playing e2-e3 without blocking in his dark-square without Bishop. } 3... Bd6 { Marshall challenges the White control of the center with this move. He dares without White to trade off the Bishops: after 4.Bxd6 Qxd6 Black would actually have without a slight lead in development. } 4. e3 { Bogo declines the Bishop trade, preferring instead to prop up both the without d4-pawn and f4-Bishop, releasing his light-square Bishop as well. } 4... Bxf4 { Marshall makes another questionable move. He decides to trade his "good" without Bishop for White's "bad" Bishop -- usually a bad idea. In return, he'll without stick White with doubled f-pawns... } 5. exf4 { ...which in this case isn't too bad! Now White has a firm grip on e5 and can without easily post his Knight there (although Black can still kick the Knight out without by playing ...f7-f6). } 5... c5 { Marshall again challenges White, threatening one of the guardians of e5. He's without hoping to trade off his flank pawn for White's only remaining center pawn. } 6. dxc5 { Bogo makes the trade, giving up his only center pawn. Now White has a pawn without superiority on each flank while Black enjoys a central majority. White without should attack on the flanks while Black should strike in the center. } 6... Qa5+ { Marshall springs a double attack! He checks the White King and attacks the without c5-pawn at the same time! How should White respond? } 7. c3 { Bogo blocks the check. He could also have tried Nc3, but c2-c3 gives his without Queen open access to the Queenside and adds the c3-pawn's influence to d4, without helping to prevent the advance of Black's d-pawn. } 7... Qxc5 { Of course, Marshall brings his double attack to its logical conclusion by without capturing the c5-pawn. } 8. Bd3 { Bogo develops another Kingside piece. The Bishop is better placed here than without on e2, because it controls more space on two diagonals (b1-h7 and without a6-f1). } 8... Nf6 { Marshall centralizes his Knight and clears the deck for castling on the without Kingside. } 9. O-O { Since there are no longer any White center pawns, the White King is finding without the center kind of drafty. Bogo gets his King to safety on the flank and without moves his Rook toward the two center files, where it will be better placed. } 9... O-O { Marshall flanks his King as well. Now he'll need to consider developing his without Queenside pieces and bringing a Rook to c8 to command the open c-file. } 10. Nbd2 { Bogo develops his Queenside Knight to its logical square (better than Na3), without where it threatens to leap to b3 and chase away the Black Queen. The without drawback to this move is that it blocks the White Queen's defense of the without d3-Bishop. } 10... Nc6 { The development of Black's Queenside pieces begins. Marshall centralizes his without Knight, supporting a possible e6-e5 advance. The Knight also has chances of without relocating to the Kingside later (Nc6-e7-f5 or g6). } 11. Ne5 { Bogo's Knight jumps to the natural outpost on e5 (safe now because the Black without f6-Knight blocks f7-f6). Even if Black plays ...Nxe5, White's reply fxe5 without gives White a center pawn again. } 11... Rd8 { Marshall brings his Rook to d8 to help support the advance of his c8-Bishop. without He may also be contemplating a d5-d4 advance (remember, you usually want to without attack where you have a pawn majority). } 12. Re1 { Bogo's Rook grabs the half-open e-file, supporting his Knight. White has a without pawn disadvantage in the center but it's somewhat offset by the open d- and without e-files which can be dominated by his Queen and Rooks. } 12... Bd7 { Marshall proceeds with his planned Bishop advance. It would be to White's without disadvantage to trade his well-placed e5-Knight for Black's ineffective without Bishop. } 13. Ndf3 { Bogo threatens to play 14.Ng5 (doubling up on the f7-pawn, striking at the without base of the Black d5-f7 pawn chain). See how Bogo hangs on to the initiative without by making moves that force a response from Black. } 13... h6 { Marshall takes away any chance of White playing Ng5 by guarding that square without with a pawn. But now he's weakened his Kingside pawn structure slightly. } 14. g4 { WOW! Bogo fearlessly weakens his own Kingside pawn structure in order to without bring another unit up for the attack. He threatens 15.g5, followed by either without ...Nh7 16.gxh6 gxh6 or 15...hxg5 16.Nxg5, both of which are bad for Black. } 14... Nxe5 { Marshall has to defuse the White time bomb, so he decides to weaken the White without attack by exchanging pieces. } 15. Nxe5 { Obviously, Bogo must recapture or remain behind by a Knight. He maintains his without Knight outpost on e5. } 15... Bc6 { Now that there's no White Knight on f3, some of the sting is taken out of the without g4-g5 pawn push. This buys Marshall time to shift his Bishop out of his without d8-Rook's way. } 16. Qe2 { Sensing that Marshall is going to try to open up the center by pushing his without d-pawn, Bogo decides that it would be wise to get his Queen off of the same without file as the Black Rook (to cut down the chances of an unpleasant surprise!). } 16... Ne4 { Marshall establishes his own Knight outpost in White's territory. He also without puts pressure on the pinned (!) f2-pawn. } 17. Rad1 { Bogo brings his Rook over to d1 and takes control of the half-open d-file. without Notice how well-placed the White Queen and Rooks are, commanding the without half-open center files. } 17... Rac8 { If commanding a half-open file is good for White, it must be just as good for without Black. Marshall's Rook slides over to the half-open c-file. } 18. Kg2 { The King advances, stopping the pin on the f2-pawn. Now White could try without f2-f3, kicking the Black Knight off of its outpost, but that cuts off the without White e5-Knight's only retreat square after Black plays f7-f6! } 18... Ba4 { Marshall nudges the d1-Rook off of the half-open file. } 19. Rc1 { Bogo saves the Rook and threatens to push his c-pawn to c4. Would 19.b3 have without worked? See the variation. } ( 19. b3 { 19.b3 would most certainly NOT have worked, and in this variation, we'll find without out why. White blocks the attack on his Rook by pushing the pawn and without attacking the Black Bishop. But the c3-pawn is hanging... } 19... Nxc3 { ...so Black snags it and forks the White Queen and d1-Rook to boot. We could without end the variation here, but things get even worse for White so we'll without sadistically continue... } 20. Qc2 { White has to move his Queen, so he'll bting it to a square where it can without recapture the Knight after 20...Nxd1. } 20... Nxd1 { Black obviously makes the capture. Now he's a Rook and pawn ahead. } 21. Bh7+ { White could either play Qxd1 immediately, or play the "spite check" here without (which isn't possible after Qxd1). He goes for the check. } 21... Kf8 { The King must move to stop the check. Rather than cornering the King, Black without moves it toward the center of the board. } 22. Qxd1 { Now White grabs the offending Knight. } 22... Bc6 { The Bishop (which has been in danger all this time!) pulls back to a safe without square. } 23. Nxc6 { White trades his Knight for the Bishop and threatens the d8-Rook. What's the without best way for Black to recapture? } 23... Qxc6 { Now Black is ahead by the exchange and a pawn. He also has a dangerous without supported passed d-pawn and, when the pawn advances, a discovered check on without the White King by the Queen! White says, "This stinks!" } ) 19... f6 { Marshall continues to upset White's game by driving the e5-Knight off of its without outpost square. Now the e6-pawn is hanging. White has no immediate threats without against it, but it could become a weakness later. } 20. Nf3 { The Knight retreats to the only safe square. } 20... Bc6 { The Bishop comes back to c6, where it could check the White King later (after without a lot of wood gets out of the way, of course!). } 21. Nd4 { Bogo's Knight leaps forward and strikes at the weak e6-pawn, threatening a without fork of the Black Queen and d8-Rook. The square f3 is now clear for White to without push f2-f3 and drive out the Black Knight as well. } 21... Qd6 { Marshall withdraws his Queen to cover e6, preventing the White Knight from without capturing the pawn and setting up the vicious fork. He also provides a without retreat square for his Knight after White plays f2-f3. } 22. f3 { Bogo plays the anticipated move and drives the Black Knight from its outpost. } 22... Nc5 { The Black Knight retreats to the square prepared for it. } 23. Bb1 { Bogo likes the way his Bishop commands the b1-h7 diagonal and pressures the without Black Kingside. Not wanting to give up the Bishop to 23...Nxd3, he pulls it without back to a safe square. } 23... Bd7 { Marshall has no intention of trading his Bishop for a Knight either, so he without withdraws his Bishop to a safe square. } 24. Qc2 { Bogo threatens to invade the Black King's domain with 25.Qh7+. The Black King without couldn't recapture because the b1-Bishop would be protecting the White without Queen. } 24... f5 { Marshall advances his pawn and blocks the White Queen's path to h7. If you without look ahead, you'll see that Black can't possibly come out ahead in material without here. It's a planned pawn sacrifice to open up somes lines for Black. } 25. gxf5 { TRIPLED PAWNS!!! How often do you see that?! Of course, the pawns won't stay without tripled for long, as Black is about to recapture. } 25... exf5 { As anticipated, Black recaptures at f5. Now the Black Queen has easy access without to the Kingside, where it will help to blunt White's attack. } 26. Nxf5 { The Knight recaptures and threatens the Black Queen. If 26...Bxf5 27.Qxf5, without White's threat of Qh7+ stands, so how should Black reply here? } 26... Qg6+ { Black saves his Queen, checks White, and piles up on the White f5-Knight. } 27. Ng3 { Bogo pulls back his Knight to block check and uncovers an attack on the Black without Queen from the White Queen. } 27... Qxc2+ { Marshall has no choice but to trade Queens. Other moves lead Black down the without road to ruin. However, once the Queens come off the board, Black doesn't without stand too badly. The pawn sacrifice on move 24 worked! } 28. Bxc2 { Bogo completes the trade. Now White is a pawn ahead, but his attack has been without stopped. Bogo will have to come up with a new plan. } 28... Ne6 { Marshall shifts his Knight and threatens to capture the f4-pawn with without check. } 29. Ne2 { Bogo pulls back his Knight to defend the f4-pawn. The downside is that he without blocks the e1-Rook's control of the e-file. Maybe 29.Nh5, defending the pawn without and putting pressure on the Black Kingside would have been better. } 29... Rf8 { The Rook piles up on the poor f4-pawn. Marshall looks up from the board and without stares at Bogoljubow. The American is determined to win back his sacrificed without pawn! } 30. f5 { Bogo smiles and simply advances the pawn, which is protected by the without c2-Bishop. Now the Black Knight is under attack! } 30... Nd8 { The Knight is forced to retreat. Although moving to d8 breaks communication without between the Rooks, it's probably still better than ...Nc7. From d8 the without Knight can jump to a center-controlling post on c6. } 31. Nd4 { Bogo adds his Knight's support to the menaced pawn on f5. } 31... Nc6 { Uh-oh. Marshall seeks to undermine the f5-pawn by attacking one of its without defenders. This is a valuable tactic to learn -- you can frequently win a without pawn or piece by capturing or exchanging off one of its defenders. } 32. Bb3 { Rather than give up a pawn by exchanging Knights, Bogo springs a without counterthreat by attacking the Black d5-pawn. If Black now takes the without f5-pawn, White responds by capturing the d5-pawn... } 32... Bxf5 { ...which is exactly what happens. Black knocks off the annoying pawn. Now his without Bishop and f8-Rook have open lines leading to the White Kingside. } 33. Bxd5+ { Whiite picks off the d5-pawn and checks the Black King as well, picking up a without tempo (since Black must waste a move reacting to the check). } 33... Kh8 { The most intelligent move to get out of check. 33...Kh7 puts the King on without another light square, subject to future harassment by the White light-square without Bishop. } 34. Bxc6 { Why trade a Bishop for a Knight? Why not 34.Nd4xc6? See the variation. In without this position, Black must recapture on c6, and White still threatens Nxf5. } ( 34. Nxc6 { White could play Nxc6... } 34... bxc6 { ...but after ...bxc6, the White Bishop is threatened and must retreat. } 35. Bb3 { After the forced retreat, it's now Black's move to do what he wants. White without has lost the initiative. } ) 34... bxc6 { As stated before, Black must recapture. Now White still has the threat of without 35.Nxf5 Rxf5, getting the last two minor pieces off the board and leaving without Black down a pawn in a Rook-and-pawn endgame. } 35. Re5 { Bogo surprises everyone with this move. He hits the Bishop a second time, but without now the Bishop can escape. Better were either 35.Nxf5 or 35.Re7, attacking without the a7-pawn. } 35... Bd7 { Marshall retreats the Bishop to d7, the only safe square. On d7, it also without prevents the White e-Rook from menacing the a-pawn after 36.Re7 (i.e. 36.Re7 without Rcd8). } 36. b4 { Bogo, enjoying a 3-2 Queenside pawn advantage, begins the mobilization of his without pawn majority. Why the b-pawn? Generally speaking, mobilize your pawn without majority by advancing the unopposed pawn first. } 36... Rf6 { Marshall advances his Rook to a more flexible square. Now he can double his without Rooks (...Rcf8) or attack the White King (...Rg6+). } 37. Rce1 { Bogo doubles his Rooks and creates a battery on the e-file. Doubling your without Rooks means doubling their strength. } 37... Kh7 { Although two pieces (the c8-Rook and d7-Bishop) prevent White from playing without Re8+, Marshall doesn't want to tie the two pieces up. He gets his King off without of the back rank and into a cozy little pocket, sheltered by friendly pawns. } 38. Ra5 { Bogo undoubles his Rooks in order to lash out at the undefended a7-pawn. } 38... Rc7 { Marshall just advances his Rook to defend the threatened a-pawn. } 39. Rc5 { Why here? Because after 40.b5, Black can't capture the pawn by ...cxb5 without because of White's reply 41.Rxc7! The Black c-pawn is pinned! } 39... a6 { Of course, you always try to hit a pinned piece again and again until you without have enough force piled up on it to win it. Marshall knows this and prevents without White from hitting the c6-pawn again with the b-pawn. Now the b-pawn can't without advance. } 40. a4 { Bogo is relentless in his pursuit of the c6-pawn. He brings up the a4-pawn to without support the b4-pawn's advance. Now he threatens 41.b5 axb5 42.axb5, after without which the Black c6-pawn is history. } 40... Rc8 { Marshall defeats Bogo's plan by dropping the Rook back to a square where it's without defended by the d7-Bishop, releasing the pin on the c6-pawn. Check out the without variation to White's next move to see how this works. } 41. h4 { Since his attack on the c6-pawn has been foiled, Bogo has to come up with without another plan. He grabs space on the Kingside and restricts Black by without advancing his h-pawn. Now ...g5 is met by hxg5 hxg5, Rh1+. } ( 41. b5 { Here's how 40...Rc8 stymies White's plan to win a second pawn. In this without variation, White blindly forges ahead with his original plan and pushes the without b-pawn. } 41... axb5 { Black grabs the pawn, preventing White from winning the c-pawn after 42.bxc6. } 42. axb5 { White, thinking that the c6-pawn is still pinned, recaptures and piles up on without the c6-pawn at the same time. } 42... cxb5 { Black's c-pawn surprises White by grabbing his b-pawn. } 43. Rxc8 { White grabs the Rook... } 43... Bxc8 { ...and the Bishop recaptures. The Black Rook dropped back to c8 earlier to without allow this very move. } 44. Nxb5 { The Knight snaps up the hanging pawn. True, Black is still behind by a pawn, without but if the Black Rook hadn't dropped back to c8, Black would have been TWO  without pawns down! } ) 41... Rg6+ { Marshall's Queenside is secure for the moment, so he shifts his attention to without the Kingside. He begins an attack by checking White's King. } 42. Kh2 { The White King retreats to a dark square, where it can't be molested by without Black's light-squared Bishop. } 42... Rf8 { Marshall brings his other Rook over to the Kingside. He threatens to play without ...Rf4,  which attacks the White h-pawn. } 43. h5 { Bogo advances the h-pawn, nullifying the threat of ...Rf4 and launching a without threat of his own -- the h-pawn attacks Black's g6-Rook. } 43... Rd6 { The Rook retreats to the only possible square (any other square loses without material for Black. Check it out and see!). } 44. Re7 { Bogo shoves his e-Rook into the midst of the Black position, where it sticks without like a bone in Marshall's throat. Now the g7-pawn is pinned. } 44... Kg8 { Marshall prepares to play Rf8-f7 in an attempt to get the e7-Rook out of his without hair, either by exchanging it off or forcing it to move. } 45. Ra5 { Bogo sidetracks Marshall by attacking the a6-pawn with his Rook. } 45... Ra8 { Marshall abandons his idea of a Rook trade and defends his menaced pawn without instead. } 46. Re4 { Bogo has reached an impasse here. There really aren't any moves to be made without that significantly improve his position, so he decides to drop back, waiting without to see what Marshall does. } 46... Kf7 { Marshall advances his King, denying White's Rook the use of e7 and without e8. } 47. Re2 { Bogo continues his policy of playing non-committal moves, awaiting further without developments by Black. } 47... g6 { Marshall plays aggressively. He advances his g-pawn in an attempt to get a without Kingside passed pawn. } 48. hxg6+ { Bogo grabs the pawn. After Marshall recaptures with the King, BOTH players without will have a Kingside passed pawn: White on the f-file, Black on the h-file. } 48... Rxg6 { SURPRISE! Marshall recaptures with the Rook instead of the King! Now he'll without probably advance the h-pawn and put the g6-Rook behind it on h6 for support. } 49. Rae5 { Bogo doubles up his Rooks again on the e-file. Now, since the a6-Rook is no without longer endangered, Black's a8-Rook is freed up for duty elsewhere. } 49... Rd8 { The a-Rook shifts over to guard the Bishop, preventing White from winning it without by 50.Re7+ Kf8 51.Rxd7. } 50. Re7+ { The White Rook piles in anyway and checks the Black King. } 50... Kf8 { The Black King retreats to the first rank, leaving the g6-Rook unattended. } 51. R7e6 { Bogo's Rook comes back and attacks the Black Rook on g6, hoping to provoke a without massive series of trades on e6 (see the variation to Black's next move). } 51... Kf7 { The Black King returns to f7 and defends the g6-Rook. Why didn't Black play without Bxe6? See the variation to find out why. } ( 51... Bxe6 { If Black plays ...Bxe6, White wins another pawn. Here's how... } 52. Nxe6+ { The Knight dives in and snaps off the Bishop. Now the Knight has set up a without three-way fork of the Black King and both Rooks! } 52... Rxe6 { Black has no choice but to recapture. If he doesn't, White will win the without exchange by trading his Knight for one of Black's Rooks. } 53. Rxe6 { Now White recaptures and threatens two Black pawns. Black can only defend one without of them (probably the c-pawn). White will grab the other pawn and should win without easily with his two-pawn advantage. } ) 52. Nxc6 { Black didn't play 51...Bxe6 because it would allow White to win a pawn. But without there's more than one way to skin a cat! Bogo finds another way to win a without pawn, starting by sacrificing his Knight! } 52... Bxc6 { The Bishop has to recapture, or else White will grab a Rook with 53.Nxd8. } 53. Rxg6 { Bogo continues his combination by making another forcing move, this time without capturing the g6-Rook. } 53... Kxg6 { Again, Black is forced to recapture or fall behind in material. } 54. Re6+ { And now Bogo gets to the point: a double attack against the Black King and without Bishop! Bogo wins the Black Bishop (which gets back the equivalent of the without Knight he sacrificed) and he'll be two pawns ahead. } 54... Kg5 { Marshall gets the King out of check, moving to a square where it still without defends the h6-pawn. } 55. Rxc6 { Bogo grabs the Bishop and wins back his sacrificed material. Now White is up without by two pawns and should have no trouble winning this game. } 55... a5 { Marshall advances the threatened pawn. If White replies 56.bxa5, the White without pawn structure is wrecked: doubled a-pawns, and all four pawns would be without isolated. The four pawns would become targets for Black's Rook. } 56. Kg3 { Bogo doesn't intend to play 56.bxa5 and give Marshall a fighting chance. He without advances his King instead to protect his f-pawn and inhibit the advance of without the Black King and h-pawn. Marshall knows he's busted, so he resigns. } 1-0