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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.
guaranteeing the e-pawn's promotion. The passed pawn's value is well worth the sacrifice of the bishop in order to clear its path to promotion. The only pieces preventing the e-pawn's promotion are the black queen and knight, and once they are gone, the pawn has a free path to promote. Black's pawns are also helpless to stop it. [1]
The main line 5...0-0 6.Nf3 c5, when after 7.d5 Black can attack White's centre with the pawn sacrifice 7...b5 or the quieter 7...e6. The latter can transpose into the Modern Benoni . The modern alternative 5...0-0 6.Nf3 Na6 !? aims at sacrificing a pawn with 7...e5 and going into tactical complications.
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.
In the ending of a rook and pawn versus a rook, where the pawn is a knight pawn (b- or g-file), the defending king is in front of the pawn, but the defender cannot get his rook to the third rank for the drawing Philidor position, the defending rook draws on its first rank but loses if it is attacking the pawn from behind.
As with all traditional handicap games, White has the first move. The standard first move is to drop a dangling pawn (垂れ歩) on the eighth file attacking the head of Black's bishop (角頭 kaku tō). White is threatening to promote this pawn to a tokin (と) on their next move. The test here is to see if Black can respond adequately to this ...
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 ...
The knight on d7 often hops to c5, where it attacks a white pawn on e4; or to e5, where it attacks a pawn on c4. The knight on f6 can go to e8 (when Black placed their rook on d8) to defend the d6 pawn, or to d7 or even to h5, if unoccupied. The black queen can be moved to b8 (unmasking the rook on c8 and perhaps supporting ...b5) or a8 (eyeing ...