DESPERADO PIECE

In chess, a 'desperado piece' is a piece that seems determined to give itself up, typically either to bring about stalemate or to sell itself as dearly as possible in a situation where both sides have hanging pieces. A classic example of the latter is Bogolyubov–Schmid, West German championship, Bad Pyrmont 1949.
In the position at right, Schmid played the surprising novelty '5...Nxe4!?', with the point that 6.Nxe4 would be met by 6...Qe7 7.f3 d5, and Black will regain the sacrificed piece. According to the Encyclopedia of Chess Openings, White can then gain a small advantage with 8.Bb5 Bd7 9.Bxc6 bxc6 10.0-0 dxe4 11.fxe4! g6 (or 11...0-0-0 12.Qf3) 12.Qf3 Bg7 13.c3 0-0 14.Bf4 c5 15.Nb3 Bc6 16.Qg3! Tartakower and DuMont recommend 7.Nb5 (instead of 7.f3) Qxe4+ 8.Be2 Kd8 9.0-0 "with compensations for the mislaid pawn." Instead, play continued '6.Nxc6 Nxc3!' Initiating a sequence of desperado moves, where each player keeps capturing with his knight, rather than pausing to capture the opponent's knight. Black cannot pause for 6...bxc6?? 7.Nxe4 Qe7 8.Qe2, leaving White a piece up with a winning position. '7.Nxd8!' White must also continue in desperado fashion, since 7.bxc3? bxc6 would leave Black a pawn up. 'Nxd1' Again the desperado move is forced, since 7...Kxd8?? 8.bxc3 would leave Black a queen down. '8.Nxf7' Since 8.Kxd1 Kxd8 would leave White a pawn down, the knight continues capturing. 'Nxf2' Still continuing in desperado fashion, in preference to 8...Kxf7 9.Kxd1 with material equality. '9.Nxh8 Nxh1'. Between them, the desperado knights have captured thus far two queens, two rooks, two knights, and three pawns. The complete score of the game is below:
'1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.d4 exd4 5.Nxd4 Nxe4!? 6.Nxc6 Nxc3 7.Nxd8 Nxd1 8.Nxf7 Nxf2 9.Nxh8 Nxh1 10.Bd3 Bc5 11.Bxh7 Nf2 12.Bf4 d6 13.Bg6+ Kf8 14.Bg3 Ng4 15.Nf7?' Better is 15.Bd3 followed by Ng6+ "with a probable draw"—Tartakower and DuMont. 'Ne3 16.Kd2 Bf5! 17.Ng5' Desperation. 17.Bxf5 Nxf5 18.Ng5 Be3+ wins. 'Bxg6 18.Ne6+ Ke7 19.Nxc5 Nxc2!' The desperado knight strikes again, this time with deadly effect. Not 19...dxc5? 20.Kxe3 with equality. '20.Bh4+ Ke8 21.Ne6 Kd7 22.Nf4 Nxa1 23.Nxg6 Re8 24.Bf2 Nc2! 25.Nf4' If 25.Kxc2, Re2+ followed by ...Rxf2 wins. 'Nb4' The knight departs, having captured in its 13 moves White's queen, both rooks, a knight and three pawns. Its Black counterpart captured the queen, a rook, both bishops, a knight, and two pawns in its 14 moves. '0-1'

Contents

More examples from games

Pilnick versus Reshevsky

Evans versus Reshevsky

Reshevsky versus Geller

Keres versus Fischer

Tilberger versus Drelikiewicz

Korchnoi versus Vaganian

Related articles

References

Further reading

External links

More examples from games

Pilnick versus Reshevsky

One of the best known examples being the game between Carl Pilnick and Sammy Reshevsky, U.S. Championship 1942 (see diagram at right). In the game, after '1... g4?? 2. Qf2!' the white queen is a desperado piece: Black will lose if he doesn't capture it, but its capture results in stalemate.

Evans versus Reshevsky

Another of the best-known examples involves a game by Larry Evans versus Reshevsky Evans-Reshevsky, USA 1963. Evans sacrificed his queen on move 49 and offered his rook on move 50. White's rook has been called the ''eternal rook''. Capturing it results in stalemate, but otherwise it stays on the seventh rank and checks Black's king ''ad infinitum''. Either a draw by agreement will occur or a draw by threefold repetition or the fifty move rule can eventually be claimed .

★ '47. h4! Re2+'

★ '48. Kh1 Qxg3'

★ '49. Qg8+! Kxg8'

★ '50. Rxg7+'

Reshevsky versus Geller

Reshevsky also fell into a stalemating trap against Efim Geller in the 1953 Candidates Tournament.[1] In the diagram at right, after '53... Rf3+!', 54. Kxf3 would be stalemate. If 54. Kg2, then 54... Rxg3+! and again White couldn't take the rook without resulting in stalemate, and Black has won a crucial pawn, thus enabling him to draw the ending. In light of these three games, the Russian analyst Verkhovsky observed that Reshevsky apparently suffered from stalemate blindness every 11 years.[2]

Keres versus Fischer

Another famous game saved by the possibility of stalemate is Keres-Fischer, Curacao 1962, although Fischer avoided the stalemating lines and allowed Keres to draw by perpetual check instead. In the position shown on the left, Keres played the centralizing '72. Qe5!!' Fischer commented:

''What's this? He makes no attempt to stop me from queening!? Gradually my excitement subsided. The more I studied the situation, the more I realized that Black had no win.''

Now if 72. ... g1(Q), 73. Bf5+ Kg8 (73. ... Kh6?? 74.Qh8#) 74.Qe8+ Kg7 75. Qe7+ Kg8 (75...Kh8?? 76.Qh7#) 76.Qe8+ draws by repetition; if 72. ... Qf2+, 73.Kh3 g1(Q) 74.Bf5+ Kh6 75. Qf6+ Kh5 76. Bg6+! Qxg6 77. Qg5+!! and either capture is stalemate. The game continued '72... Qh1+ 73. Bh3'. Now if 73... g1=Q, 74. Qh5+ Kg7 75. Qg6+! and either capture of the queen results in stalemate (see the diagram on the right) — otherwise the white queen keeps checking the black king: 75...Kh8 76. Qh6+ Kg8 77. Qg6+! Kf8 78. Qf6+ Ke8 79. Qe6+, and Black must repeat moves with 79...Kf8, since 79...Kd8?? runs into 80.Qd7# .

Tilberger versus Drelikiewicz

Sometimes it is possible for the inferior side to sacrifice two or three pieces in rapid succession to achieve a stalemate. An example is seen in the diagram at left. Black saved the draw with '1...h3+! 2.Kxh3 Qf5+! 3.Qxf5' not 3.Kg2? Qxd7 'Rxg3+! 4.Kh4 Rg4+!'

Korchnoi versus Vaganian

In Korchnoi-Vaganian, Skellefteå 1989 [3], a similar three-piece sacrifice might have enabled Vaganian to save the game. From the position at left, Vaganian played 35...Qxc2+? 36.Kh3 Qa4 37.Kh4. Jacob Aagaard, in his book ''Excelling at Chess Calculation'' (p. 28), notes that now "White had a winning endgame, which Korchnoi indeed won." Aagaard instead recommends 35...b6!!, when the natural 36.Qxc6 would be met by 36...Ne3+! 37.Rxe3 Qf1+! (diagram at right) 38.Kxf1 stalemate.

Related articles

★ Stalemate

References

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★ Sahovski Informator, Belgrade. ''Encyclopedia of Chess Openings'', Vol. C (1997), at 271 n.26.

★ Tartakower, Savielly and Julius du Mont, ''100 Master Games of Modern Chess'' (Dover Publications, 1975), pg. 39-40.

Further reading

★ Another example of desperado piece from an actual game is on page 124.

External links

★ complete score of Pilnick-Reshevsky (scroll down to 12th comment, by "Resignation Trap") -- but note that Black's 26th move should be ...Rc7, not ...c7

★ Evans-Reshevsky