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).
別名はPolish Draughts, International Checkers, Continental Draughts。
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.
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.
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.
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.