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  2. Checkmate pattern - Wikipedia

    en.wikipedia.org/wiki/Checkmate_pattern

    In the first diagram with White to play, White can force checkmate as follows: 1. Rxg7+ Kh8 2. Rxh7+ Kg8 3. Rbg7# For this type of mate, the rooks on White's 7th rank can start on any two files from a to e, and although black pawns are commonly present as shown, they are not necessary to deliver the mate. The second diagram shows the final ...

  3. Tsume shogi - Wikipedia

    en.wikipedia.org/wiki/Tsume_shogi

    Since mate by gold is a fundamental checkmate tactic in shogi, it is common for pieces to promote into a gold to deliver checkmate. [ 6 ] For instance, a silver defended by a pawn can mate at the head of a king but only if the pawn is promoted.

  4. Checkmate - Wikipedia

    en.wikipedia.org/wiki/Checkmate

    The second position is a checkmate on a side square next to the corner square (this position can theoretically occur anywhere along an edge, but can only be forced adjacent to a corner). With the side with the bishops to move, checkmate can be forced in at most nineteen moves, [ 35 ] except in some very rare positions (0.03% of the possible ...

  5. Rules of chess - Wikipedia

    en.wikipedia.org/wiki/Rules_of_chess

    A dead position is defined as a position where neither player can checkmate their opponent's king by any sequence of legal moves. [34] According to the rules of chess the game is immediately terminated the moment a dead position appears on the board. Some basic endings are always dead positions; for example: king against king;

  6. Bishop and knight checkmate - Wikipedia

    en.wikipedia.org/wiki/Bishop_and_knight_checkmate

    With the stronger side to move, checkmate can be forced in at most thirty-three moves from almost any starting position. [ 1 ] [ 2 ] Although it is classified as one of the four basic checkmates, [ 3 ] [ a ] the bishop and knight checkmate occurs in practice only approximately once in every 6,000 games.

  7. Castling - Wikipedia

    en.wikipedia.org/wiki/Castling

    If one player castles kingside and the other queenside, it is called opposite castling or opposite-side castling. Castling on opposite sides usually results in a fierce fight, as each player's pawns are free to advance to attack the opponent's castled position without exposing the player's own castled king.

  8. Fool's mate - Wikipedia

    en.wikipedia.org/wiki/Fool's_mate

    Fool's mate was named and described in The Royal Game of Chess-Play, a 1656 text by Francis Beale that adapted the work of the early chess writer Gioachino Greco. [2]Prior to the mid-19th century, there was not a prevailing convention as to whether White or Black moved first; according to Beale, the matter was to be decided in some prior contest or decision of the players' choice. [3]

  9. 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]