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The king (♔, ♚) is the most important piece in the game of chess. It may move to any adjoining square; it may also perform, in tandem with the rook , a special move called castling . If a player's king is threatened with capture, it is said to be in check , and the player must remove the threat of capture immediately.
Under USCF rules, if a player completes an illegal move in blitz chess, the player's opponent may claim a win before making a move (if the opponent has enough material to win). One way to claim this win is to take a King left in check by the opponent. Once the illegal move has been answered, the move stands. [75]
The chess endgame with a king and a pawn versus a king is one of the most important and fundamental endgames, other than the basic checkmates. [1] It is an important endgame for chess players to master, since most other endgames have the potential of reducing to this type of endgame via exchanges of pieces.
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]
Some problem composers believe that the endgame starts when the player to move can force a win or a draw against any variation of moves. [9] Alburt and Krogius give three characteristics of an endgame: [10] Endgames favor an aggressive king. Passed pawns increase greatly in importance.
It is among a minority of positions where a king and a pawn can win against a king and a rook. [ 2 ] This article uses algebraic notation to describe chess moves.
f7 (following move 1), e5 (move 4), d7 (move 6), c5 (move 13), and b7 (move 14) In this position, White has completed phase 1, driving the black king to the h8-corner. Since White has a light-squared bishop, the knight must be used to control the dark squares on the 8th rank, forcing the black king to the h1-square.
Protecting the pawn in order to free the rook to move. If 1.a7 Ra6! 2.Kb5 Ra1 3.Kb6 Rb1+ 4.Kc7 Rc1+ 5.Kd7 Ra1, and White cannot win. Note that if Black's king were on g6 there would follow 2.Rg8+ with 3.a8=Q, and if it were on f7 White would win with 2.Rh8! Rxa7 3.Rh7+. 1... Rf5+! 2. Kc6 Rf6+! An important square for the rook.