International Draughts国際ドラフツ

Draughts on a 10×10 board: men take backward, kings fly, and you must take the most you can.

Played on a ten-by-ten board in the Netherlands by about 1550, by the historian Arie van der Stoep's account, and with twenty men a side from the late seventeenth century. Its old name, Polish draughts, is said to follow a Dutch habit of calling any novel idea Polish. The FMJD, founded in 1947 by the French, Dutch, Belgian and Swiss federations, governs it worldwide; the rules here are the FMJD's official rules (Annex 1, 2018, and the Annexes of 2024).

Also known as Polish Draughts, International Checkers, Continental Draughts.

Object目的

Leave the other side with no piece that can move: jump theirs off the board until none is left, or shut in whatever remains.
No lines and nothing placed after the start: every piece is down from the first move, and the whole game is in how they step and jump.

Board盤

A 10×10 board.
Played on the dark squares only, fifty of the hundred. Each side starts with twenty men filling its own four rows.

Play手順

A turn moves one piece: a man steps one square diagonally forward, onto an empty square.
A man captures by jumping an adjacent enemy piece into the empty square beyond it, forward or backward.
Capturing is forced, and so is taking the most you can: of every capture on the board, only one taking the greatest number of pieces may be played. A king counts as one piece, the same as a man; among captures taking equally many, you choose.
A piece that captures and can capture again keeps going in the same move, turning corners as it must. A man that crosses the far row partway through is not crowned: it carries on as a man, and is crowned only if the capture ends there.
The pieces a capture takes come off the board only when it is over. Until then each still stands in the way: none may be jumped a second time, and nothing may pass through one.
A man whose move ends on the far row is crowned a king. A king flies: it moves any distance along an open diagonal, either way, and captures a piece at any distance, landing on any empty square beyond it — one from which it can capture again, where there is one.
The game ends the moment a colour has no piece that can move: none left, or every one shut in.

House rules細則

White always opens.
It is a draw once twenty-five moves each have gone by in which only kings have moved and nothing has been taken.
It is a draw when the same position comes round for the third time with the same side to move.
It is a draw when three kings, two kings and a man or a king and two men against a king is not won within sixteen more moves each of that ending arising.
It is a draw when two kings, a king and a man or a king against a king is not won within five more moves each of that ending arising.
The threat reading, hints and the chance-of-winning bar are switched off: there are no lines here, only pieces jumping.
10×10, played on the dark squares only — fifty of the hundred. Twenty men a side fill the first four rows, and the two middle rows start empty. Each player has a dark square in the near left-hand corner.

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