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  2. Checkmate - Wikipedia

    en.wikipedia.org/wiki/Checkmate

    The two bishops checkmate is the checkmate of a lone king by the opponent's two bishops and king. [b] The superior side is able to drive the lone king into a corner and force mate using the two bishops and king collaboratively. The only stipulation is that the two bishops must move on opposite-colored squares.

  3. King and pawn versus king endgame - Wikipedia

    en.wikipedia.org/wiki/King_and_pawn_versus_king...

    2. Kc7. followed by 3. d8=Q. Otherwise, if the black king stays on one of those two squares, he keeps the white king from occupying a key square. [17] Rule 2: White wins if at least any two of the following conditions are met: the white king is in front of the pawn; White has the opposition; the white king is on the sixth rank. [18]

  4. Checkmate pattern - Wikipedia

    en.wikipedia.org/wiki/Checkmate_pattern

    In a two knights endgame, the side with the king and two knights cannot checkmate a bare king by force. This endgame should be a draw if the bare king plays correctly. A mate only occurs if the player with the bare king blunders. In some circumstances, if the side with the bare king instead has a pawn, it is possible to set up this type of ...

  5. Chess puzzle - Wikipedia

    en.wikipedia.org/wiki/Chess_puzzle

    If 2.Rg1, 2...Bc5 sets up a battery targetting g1, where White can stop checkmate only by moving the c1-bishop to connect rooks. Since the only two squares available to the bishop are controlled by the black queen, loss of the bishop is unavoidable. White's best try is 2.Be3, giving up the bishop immediately and leaving Black an easily won ...

  6. Bishop and knight checkmate - Wikipedia

    en.wikipedia.org/wiki/Bishop_and_knight_checkmate

    In chess, the bishop and knight checkmate is the checkmate of a lone king by an opposing king, bishop, and knight. With the stronger side to move, checkmate can be forced in at most thirty-three moves from almost any starting position.

  7. Smothered mate - Wikipedia

    en.wikipedia.org/wiki/Smothered_mate

    Philidor's mate, also known as Philidor's legacy, is a checkmating pattern that ends in smothered mate. This method involves checking with the knight forcing the king out of the corner of the board, moving the knight away to deliver a double check from the queen and knight, sacrificing the queen to force the rook next to the king, and mating with the knight.

  8. Back-rank checkmate - Wikipedia

    en.wikipedia.org/wiki/Back-rank_checkmate

    In chess, a back-rank checkmate (also known as a corridor mate) is a checkmate delivered by a rook or queen along the opponent's back rank (that is, the row closest to them) in which the mated king is unable to move up the board because the king is blocked by friendly pieces (usually pawns) on the second rank. [1]

  9. Eight queens puzzle - Wikipedia

    en.wikipedia.org/wiki/Eight_queens_puzzle

    If the remainder is 2, swap 1 and 3 in odd list and move 5 to the end (3, 1, 7, 5). If the remainder is 3, move 2 to the end of even list and 1,3 to the end of odd list (4, 6, 8, 2 – 5, 7, 9, 1, 3). Append odd list to the even list and place queens in the rows given by these numbers, from left to right (a2, b4, c6, d8, e3, f1, g7, h5).