Non capture positions

Win: 925.412 (2.0%)
Draw: 45.028.366 (97.8%)
Lose: 74.540 (0.2%)

All positions

Win: 14.695.544 (15.9%)
Draw: 76.486.819 (82.7%)
Lose: 1.329.617 (1.4%)

Native examples were selected after counting from 8778 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 9, Black 18.

W:WK26,47:B4,5,K48

MoveResult
26-21Draw
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Loss
26-37Loss
26-42Loss
47-41Draw
47-42Win

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 3, Black 8.

W:W20,K46:BK5,13,44

MoveResult
46-41Loss
46-37Loss
46-32Loss
46-28Loss
46-23Loss
46-19Loss
46-14Loss
46-10Loss
20-14Draw
20-15Loss

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 9, Black 18.

W:WK5,47:B3,4,K46

MoveResult
5-10Loss
5-14Loss
5-19Loss
5-23Loss
5-28Loss
5-32Loss
5-37Loss
5-41Loss
47-41Win
47-42Loss

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 18.

W:WK26,47:B4,5,K48

MoveResult
26-21Draw
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Loss
26-37Loss
26-42Loss
47-41Draw
47-42Win

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 9, Black 18.

W:WK1,46:BK3,4,5

MoveResult
1-6Draw
1-7Draw
1-12Loss
1-18Draw
1-23Draw
1-29Draw
1-34Draw
1-40Draw
1-45Draw
46-41Draw

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 9, Black 18.

W:WK26,47:B4,5,K48

MoveResult
26-21Draw
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Loss
26-37Loss
26-42Loss
47-41Draw
47-42Win

Promotion trap

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

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Black to move: Win. Pip count: White 1, Black 3.

B:WK1,6:BK15,40,45

MoveResult
15-10Draw
15-4Draw
15-20Win
15-24Win
15-29Win
15-33Win
15-38Win
15-42Win
15-47Win
40-44Draw
45-50Draw

Both sides at highest pip count: win

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Win. Pip count: White 9, Black 18.

W:WK26,47:B4,5,K48

MoveResult
26-21Draw
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Loss
26-37Loss
26-42Loss
47-41Draw
47-42Win

Both sides at highest pip count: loss

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

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White to move: Loss. Pip count: White 9, Black 18.

W:WK46,50:B4,5,K25

MoveResult
46-41Loss
46-37Loss
46-32Loss
46-28Loss
46-23Loss
46-19Loss
46-14Loss
46-10Loss
50-44Loss
50-45Loss