Checkmate international dating
If the player to move has no legal move, the game is over; the result is either checkmate (a loss for the player with no legal move) if the king is in check, or stalemate (a draw) if the king is not. In the diagrams, the dots mark the squares to which the piece can move if there are no intervening piece(s) of either color (except the knight, which leaps over any intervening pieces).
FIDE also awards life-time master titles to skilled players, the highest of which is Grandmaster (GM).
Since the second half of the 20th century, chess engines have been programmed to play with increasing success, to the point where the strongest programs play at a higher level than the best human players.
Since the 1990s, computer analysis has contributed significantly to chess theory, particularly in the endgame.
During the game, play typically involves pieces for the opponent's similar pieces, and finding and engineering opportunities to trade advantageously or to get a better position.
In addition to checkmate, a player wins the game if the opponent resigns, or (in a timed game) runs out of time.