The player with the light pieces moves first unless stated otherwise. It is against the rules to move one of the opponent's pieces. One player has the dark pieces, and the other has the light pieces. An exception to this is that if a clock is employed then if one player defaults on time that player's opponent wins regardless of the board configuration, with varying methods to determine the official score where one is required.ĭraughts (or checkers) is played by two opponents, on opposite sides of the gameboard. The player with the most pieces on the board at the end of the game wins. This possibility may occur because one player has no pieces remaining on the board in that player's color. This means the game may end before the grid is completely filled. This occurs when the grid has filled up or when neither player can legally place a piece in any of the remaining squares. When neither player can move, the game ends. If one player can not make a valid move, play passes back to the other player. Light takes the bottom left option and reverses one piece.
This player operates under the same rules, with the roles reversed: light lays down a light piece, causing a dark piece to flip. In other words, a valid move is one where at least one piece is reversed. All reversed pieces now show the dark side, and dark can use them in later moves unless light has reversed them back in the meantime. The dark player moves first.ĭark must place a piece with the dark side up on the board, in such a position that there exists at least one straight (horizontal, vertical, or diagonal) occupied line between the new piece and another dark piece, with one or more contiguous light pieces between them.Īfter placing the piece, dark turns over (flips, captures) all light pieces lying on a straight line between the new piece and any anchoring dark pieces. Convention has initial board position such that the disks with dark side up are to the north-east and south-west (from both players' perspectives), though this is only marginally meaningful to play (where opening memorization is an issue, some players may benefit from consistency on this). It is also possible to play variants of Reversi and Othello wherein the second player's second move may or must flip one of the opposite-colored disks (as variants closest to the normal games).įor the specific game of Othello (as technically differing from Reversi), the rules state that the game begins with four disks placed in a square in the middle of the grid, two facing white side up, two pieces with the dark side up, with same-colored disks on a diagonal with each other.
If either the second player chooses to move to the square diagonal to the first player or the first player's second move is not to this square given the choice, then a starting position before flipping moves commence that differs from the standard Othello position arises. The players place their disks alternately with their color facing up and no captures are made. True Reversi starts with an empty board, and the first two moves by each player are in the four central squares of the board. The game may for example be played with a chessboard and Scrabble pieces, with one player letters and the other backs. Each of the disks' two sides corresponds to one player they are referred to here as light and dark after the sides of Othello pieces, but any counters with distinctive faces are suitable.
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