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The king is protected by moving it to the corner and the rook prepares to be moved to e1 square if the knight takes e4. 4... Ng4?? 5. h3. A blunder as the knight is moved away from the center and after 5. h3 it will be kicked back to the f6 square leading to a lost tempo giving the White knight the chance to take the e5 pawn with the line 5 ...
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.
The capturing pawn moves to the square that the enemy pawn passed over, as if the enemy pawn had advanced only one square. The rule ensures that a pawn cannot use its two-square move to safely skip past an enemy pawn. Capturing en passant is permitted only on the turn immediately after the two-square advance; it cannot be done on a later turn. [4]
The King's Knight Opening is a chess opening consisting of the moves: . 1. e4 e5 2. Nf3. White's second move attacks the e-pawn. Black usually defends this with 2...Nc6, which leads to several named openings.
Although both the bishop on c4 and the knight on e5 target the pawn on f7, if Black does not protect the pawn, the threat is typically Bxf7+ rather than Nxf7. 6.d4 has been tried as well, although it is regarded by some to be inferior to 6.Bc4. [3]
White had just captured the e5-pawn with his knight on f3. The white knight can be taken, but White's move also opened a discovered attack on the black knight on h5. If Black takes the knight, then 13.Qxh5 leaves him a pawn down. To avoid this, Black sacrificed the h5-knight, capturing a pawn with tempo on the rook: 12... Nxg3 13. hxg3 Bxe5
Consequently, a knight alternates between light and dark squares with each move. [2] When moving, the knight can jump over pieces to reach its destination. [a] [b] [4] Knights capture in the same way, replacing the enemy piece on the square and removing it from the board. A knight can have up to eight available moves at once.
The Danvers Opening hinders this by forcing Black (unless they want to sacrifice a pawn) to first defend the e-pawn (usually with 2...Nc6), then 3.Bc4 forces Black to make some compromise to defend against the mate threat; 3...g6 commits Black to fianchettoing the king bishop, 3...Qe7 blocks the bishop, and 3...Qf6 occupies knight's best square.