Information om | Engelska ordet B4

Savielly Tartakower defeated Richard Réti using b4 in a match in 1919 when both were top-level players, and Reti himself defeated Abraham Speijer in Scheveningen 1923 using the opening.
For instance, a white pawn captured on b4 is reborn on b2; a black knight captured on f6 is reborn on b8; a black rook captured on the same square is reborn on h8.
Ke4, with checkmate: the king patrols the rook on e3 giving check and guarding b3 and d3; the rook on a2 is patrolled by the knight on b4 and so controls the squares b2, c2 and d2; Kd4 is not possible because the black king, patrolled by the e3 rook, controls that square; and Kxb4 is not possible because the white king is not patrolled and so cannot capture.
Bxb4 cxb4, Black's pawns are doubled, and a pawn has been pulled away from the centre, but the b4 pawn can also be annoying for White since it takes the c3-square away from the knight.
In chess, a Wing Gambit is an opening in which White plays an early b4, deflecting an enemy pawn or bishop from c5 so as to regain control of d4, an important central square.

Förberedelsen av sidan tog: 217,63 ms.

Exempel på hur man kan använda B4 i en mening