Non capture positions

Win: 5.285.093 (39.5%)
Draw: 8.089.131 (60.5%)
Lose: 4.181 (0.0%)

All positions

Win: 14.218.675 (51.5%)
Draw: 13.298.877 (48.1%)
Lose: 115.108 (0.4%)

Native examples were selected after counting from 8221 sampled White-quiet boards, including targeted starting-rank and losing candidates. Statistics still cover every enumerated position. An absent example does not prove the category is absent.


Special WDL positions

One example per category. Every starting position is double quiet: neither side has a capture. Results and move outcomes are relative to the player to move in the diagram. Kings have a double ring.

White-to-move examples are preferred; Black-to-move examples are retained when no qualifying White-to-move example was found.

Pip count means remaining rank distance to promotion (kings: zero). Highest pip count puts men nearest their starting ranks; both sides must simultaneously attain their material's maximum. Material disadvantage means fewer pieces.

Only move to win

At least three legal moves; exactly one wins and every alternative draws or loses.

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White to move: Win. Pip count: White 4, Black 9.

W:WK15,23:B13,44,45

MoveResult
15-10Draw
15-4Draw
15-20Draw
15-24Draw
15-29Draw
15-33Draw
15-38Draw
15-42Draw
15-47Draw
23-18Draw
23-19Win

Only move to draw

At least two legal moves; exactly one draws and every alternative loses.

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White to move: Draw. Pip count: White 9, Black 22.

W:WK45,47:B1,7,24

MoveResult
45-40Loss
45-34Loss
45-29Loss
45-23Loss
45-18Loss
45-12Loss
45-50Draw
47-41Loss
47-42Loss

Mutual zugzwang

On this same board, White to move loses and Black to move loses.

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White to move: Loss. Pip count: White 6, Black 22.

W:WK5,31:B10,11,14

MoveResult
31-26Loss
31-27Loss

Whoever moves wins

On this same board, White to move wins and Black to move wins.

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White to move: Win. Pip count: White 7, Black 7.

W:WK6,38:B27,39,44

MoveResult
6-1Draw
6-11Loss
6-17Loss
6-22Loss
6-28Loss
6-33Loss
38-32Draw
38-33Win

Win with fewer pieces

The player to move has fewer pieces and a proven win.

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White to move: Win. Pip count: White 9, Black 27.

W:WK2,46:B1,3,5

MoveResult
2-7Loss
2-11Win
2-16Win
2-8Loss
2-13Win
2-19Win
2-24Win
2-30Win
2-35Win
46-41Win

Draw with fewer pieces

The player to move has fewer pieces and a proven draw.

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White to move: Draw. Pip count: White 3, Black 3.

W:WK11,17:B42,44,45

MoveResult
11-6Draw
11-7Draw
11-2Draw
11-16Draw
17-12Draw

Unique winning sacrifice

Exactly one of at least two moves wins; every compulsory reply captures the piece offered by that move.

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White to move: Win. Pip count: White 4, Black 9.

W:WK15,23:B13,44,45

MoveResult
15-10Draw
15-4Draw
15-20Draw
15-24Draw
15-29Draw
15-33Draw
15-38Draw
15-42Draw
15-47Draw
23-18Draw
23-19Win

Promotion trap

A promotion draws or loses, while a non-promoting move wins.

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White to move: Win. Pip count: White 1, Black 16.

W:W8,K28:B4,20,45

MoveResult
28-22Draw
28-17Draw
28-11Draw
28-6Draw
28-23Draw
28-19Draw
28-14Draw
28-10Draw
28-5Draw
28-32Draw
28-37Draw
28-41Draw
28-46Draw
28-33Draw
28-39Draw
28-44Draw
28-50Win
8-2Draw
8-3Draw

Both sides at highest pip count: win

Both sides attain their maximum pip count; the player to move wins.

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White to move: Win. Pip count: White 9, Black 27.

W:WK2,46:B1,3,5

MoveResult
2-7Loss
2-11Win
2-16Win
2-8Loss
2-13Win
2-19Win
2-24Win
2-30Win
2-35Win
46-41Win

Both sides at highest pip count: loss

Both sides attain their maximum pip count; the player to move loses.

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Black to move: Loss. Pip count: White 9, Black 27.

B:WK2,46:B1,3,5

MoveResult
1-7Loss
3-9Loss
1-6Loss
3-8Loss
5-10Loss