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A. Wardley proposed in 1977 a Simpler chess, a family of 6×6 chess variants, in which a pair of pieces is removed from both sides: rooks, knights, bishop or even king and queen. Removing bishops results in Los Alamos chess ; the result of removing rooks, knights, or royals is shown on the diagrams above.
The Lasker Trap is a chess opening trap in the Albin Countergambit. It is named after Emanuel Lasker , although it was first noted by Serafino Dubois . [ 1 ] [ a ] It is unusual in that it features an underpromotion as early as the seventh move.
In chess, a combination is a sequence of moves, often initiated by a sacrifice, which leaves the opponent few options and results in tangible gain.At most points in a chess game, each player has several reasonable options from which to choose, which makes it difficult to plan ahead except in strategic terms.
White rolls a 3 and a 6, and plays 3.Bxf7+. Black rolls a 2 and a 4; since no knight or rook move is a legal response to the check, he must pass. (Only a 6, or doubles, would have allowed him to move.) White rolls a 2 and a 4, and chooses 4.Nf3. (A 3 or 5 would have enabled an immediate win with 4.Bxe8, 4.Qf3# or 4.Qh5#).
Double chess board and initial setup. Pawns advance up to four squares on their first move. Double chess is a chess variant invented by Julian S. Grant Hayward in 1916. [1] [2] The game is played on a 16×12 chessboard with each player in control of two complete armies placed side by side.
Several chess strategies and openings are based on burdening the opponent with doubled pawns, a strategic weakness. There are, however, cases where accepting doubled pawns can be advantageous because doing so may open up a file for a rook , or because the doubled pawns perform a useful function, such as defending important squares.
A Poisoned Pawn Variation also exists in the French Defence, Winawer: 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.e5 c5 5.a3 Bxc3+ 6.bxc3 Ne7 7.Qg4 Qc7 8.Qxg7 Rg8 9.Qxh7 cxd4 10.Ne2 Nbc6 (or 10.Kd1 Nd7). Like the Poisoned Pawn Variation in the Sicilian Najdorf , this line gives significant weaknesses for both sides and can lead to highly complex lines.
For example, Harry Golombek, in Capablanca's 100 Best Games of Chess (1947), gave a question mark to Black's fourth move in the line 1.e4 c5 2.Ne2 d6 3.d4 cxd4 4.Nxd4 g6, a form of the Accelerated Dragon variation of the Sicilian Defence, stating that 4...Nf6 was "necessary" to make White block his c-pawn with 5.Nc3 and thus avoid the Bind.