FMJD

A square board divided into 100 equal squares, alternately black and white (2.1); Play happens only on the dark squares, so 50 squares are active (2.2); The skewed lines of dark squares are the diagonals; there are 17 of them (2.3)

The board is placed between the players so that the long diagonal starts at each player's left-hand side; the first square at each player's left hand is then a dark square (2.4); If the board is found to be wrongly positioned during a game, the game is annulled and has to restart (5.1); The 20 bl...

A man moves forwards along a diagonal to an empty square of the next row (3.4); A move is finished when the player has released the piece (3.10); Touching one of your own playable pieces obliges you to play it, provided a legal move exists (3.11)

A game ends in one of two results: a win for one player and a loss for the other, or a draw (7.1, 7.1.1, 7.1.2); A player wins when the opponent resigns, with or without reason (7.2.1); A player wins when the opponent has the move but cannot move because all pieces are blocked (7.2.2)

Normal games between two opponents face to face (11.1.1); Simultaneous displays — one player facing a number of opponents at once (11.1.2); Correspondence games, the moves sent alternately (11.1.3)

Capture is possible both forwards and backwards, counts as one complete move, and you may never capture your own pieces (4.1); When a man meets an opponent's piece diagonally with a free square behind it, he is obliged to jump it and occupy that square; the jumped piece is removed (4.2); A king m...

Threefold repetition — the same position occurring a third time with the same player to move is a draw (6.1); 25-move rule — if only kings move for 25 successive moves each, with no man moved and no capture, the game is drawn (6.2); 16-move endings — with three kings, two kings and a man, or one ...

A capture must be clearly indicated and executed in order; absence of clear indication is incorrect and the opponent may request rectification (4.4); The move and the removal of captured pieces must be done with one and the same hand — using two hands is incorrect (4.4); Indicate a multiple captu...

The FMJD game uses a 100-square board with 20 men a side (2.1, 2.7); English draughts and American checkers use a 64-square board with 12 men a side and are governed separately; In the international game men capture backwards (4.1); in English draughts they do not; The international king is a fly...

On any listed irregularity the opponent chooses whether it is rectified or allowed to stand (5.4); The list covers playing two moves in a row, moving irregularly, touching one piece and moving another, taking back a move, moving the opponent's piece, and playing a quiet move when a capture was av...