Non capture positions

Win: 61.199.403 (77.6%)
Draw: 17.530.177 (22.2%)
Lose: 120.406 (0.2%)

All positions

Win: 104.123.810 (83.4%)
Draw: 20.636.553 (16.5%)
Lose: 139.587 (0.1%)

Native examples were selected after counting from 11814 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 19, Black 3.

W:W8,12,39,46:B40,45

MoveResult
8-2Draw
12-7Draw
39-33Draw
8-3Win
39-34Draw
46-41Draw

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 27, Black 5.

W:W21,31,42,48:B30,45

MoveResult
21-16Loss
31-26Loss
42-37Loss
21-17Draw
31-27Loss
42-38Loss
48-43Loss

Mutual zugzwang

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

No qualifying example proved from the available WDL data.

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 23, Black 9.

W:W16,25,36,47:B9,45

MoveResult
25-20Loss
47-41Loss
16-11Win
36-31Loss
47-42Loss

Win with fewer pieces

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

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Black to move: Win. Pip count: White 27, Black 2.

B:W21,37,38,48:B44,45

MoveResult
44-50Win
44-49Win
45-50Win

Draw with fewer pieces

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

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Black to move: Draw. Pip count: White 29, Black 6.

B:W31,38,39,47:B24,45

MoveResult
24-30Draw
24-29Draw
45-50Draw

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 27, Black 6.

W:W8,44,47,48:B21,45

MoveResult
8-2Draw
44-39Draw
47-41Draw
48-42Draw
8-3Draw
44-40Win
47-42Draw
48-43Draw

Promotion trap

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

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White to move: Win. Pip count: White 27, Black 3.

W:W9,44,49,50:B38,45

MoveResult
9-3Draw
44-39Win
49-43Draw
9-4Draw
44-40Draw

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 36, Black 18.

W:W46,47,48,49:B4,5

MoveResult
47-41Win
48-42Win
49-43Win
46-41Win
47-42Win
48-43Win
49-44Win

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 36, Black 18.

B:W46,47,48,49:B4,5

MoveResult
4-10Loss
4-9Loss
5-10Loss