Checkers variant

International draughts · Polish draughts

The world-championship game: a 10×10 board, twenty men a side, men that capture backwards, long-range flying kings, and the majority rule that turns quiet positions into forced twelve-piece combinations.

At a glance

Board10×10 — the 50 dark squares, numbered 1–50
Pieces20 men per side
First moveWhite
MenMove forward; capture forward and backward
KingsFlying — slide any distance along open diagonals
CapturesMandatory, and you must play the line that captures the most pieces
CrowningA man passing over the back row mid-capture is NOT crowned — it must end there
DrawsThreefold repetition, or long sequences of quiet king moves on both sides

The starting position

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950
The international starting position — 20 men each on the 50 dark squares; White moves first.

How international draughts plays

Everything English draughts does, bigger and sharper. Men still move one diagonal square forward, but they capture backward as well as forward. Kings are flying: they slide any number of empty squares along a diagonal, capture a piece anywhere on that line, and choose their landing square beyond it. And where English play lets you pick between jumps, international play enforces the majority rule — count every available capture line, and the one that takes the most pieces is the only legal move.

One subtlety the engine enforces exactly: a man whose capture chain merely passes over the back row is not crowned in passing — it must finish its move on the back row to become a king.

Why players love it

The majority rule turns quiet-looking positions into forcing sequences you can calculate like a proof, and flying kings make material sacrifice a real weapon. It is the world-championship game for a reason — start with the four-lesson international path to feel the difference from the 8×8 games.

How International draughts differs from English draughts

AspectEnglish draughtsInternational draughts
Board8×8, 32 dark squares10×10, 50 dark squares
Pieces12 men20 men
First moveDarker colorWhite
Men capturingForward onlyForward and backward
KingsOne diagonal stepFlying kings — any distance
Capture choiceFree choice among jumpsMajority rule: the longest capture is forced
Crowning mid-jumpEnds the move, man is crownedNo crowning in passing — only if the move ends on the back row

Learn International draughts interactively — step-by-step coached lessons, free


New to the family? Start with the English draughts rules, compare the seven variants, or jump into the interactive lessons.