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On 7.dxe5 Qxd1 8.Rxd1 fxe5, White cannot take the e5-pawn with the knight because the knight is pinned by the bishop. Multiple trades have occurred, however, bringing the position closer to an endgame, which is beneficial for White, who has the better pawn structure.
Paradoxically, checkmate with two knights sometimes can be forced if the weaker side has a single extra pawn, but this is a curiosity of little practical value (see two knights endgame). Pawnless endgames are a rarity, and if the stronger side has even a single pawn, an extra knight should give them an easy win. A bishop can trap (although it ...
A pawn may move by vertically advancing to a vacant square ahead. The first time a pawn moves, it has the additional option of vertically advancing two squares, provided that both squares are vacant. Unlike other pieces, the pawn can only move forwards. In the second diagram, the pawn on c4 can move to c5; the pawn on e2 can move to either e3 ...
Exchanges can appear in connection with practically any kind of attacking or defensive chess tactic or combination of tactics. Such tactics can involve checkmating the opponent, avoiding checkmate, gaining a material advantage, avoid losing more material than necessary, helping a pawn to promote, preventing an opponent's pawn promotion, or setting up a draw by any of a couple methods.
some pawn exchanges may be necessary to open files, but keep pawns on both sides of the board; try to keep the position unbalanced. A passed pawn almost immediately becomes a winning advantage. [15] If the minor piece has an extra pawn (i.e. one pawn for the exchange), the rook should win, but with difficulty.
A pawn is referred to by the file on which it stands: a rook pawn is on the a- or h-file, a knight pawn is on the b- or g-file, a bishop pawn is on the c- or f-file. A central pawn is a queen pawn or a king pawn, on the d- or e-file. When designating a position as a win or a draw, optimal play by both sides is assumed.
If the pawn is a central pawn or knight pawn (i.e. on the b, d, e, or g-file), the queen wins easily, except for a few unusual positions. In the position on the right, White wins. It takes several moves, but it is not difficult. 1... Ke3. Black threatens to queen the pawn. White prevents this by forcing the black king in front of the pawn. 2 ...
The camel (Golomb called it the cook) has a kind of extended knight's move: it goes one diagonal and two straight. With this move, it can jump over other pieces (like a knight jumps), but the camel takes by moving to the square on which the enemy piece is located. Capturing is not mandatory.