Non capture positions

Win: 400.091 (0.8%)
Draw: 51.843.444 (98.6%)
Lose: 359.006 (0.7%)

All positions

Win: 5.501.009 (5.3%)
Draw: 94.645.036 (91.9%)
Lose: 2.851.635 (2.8%)

Native examples were selected after counting from 10861 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 9.

W:WK26,47:B5,K43,K48

MoveResult
26-21Loss
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 9, Black 9.

W:WK6,46:B5,K16,K50

MoveResult
6-1Draw
6-11Loss
6-17Loss
6-22Loss
6-28Loss
6-33Loss
6-39Loss
6-44Loss
46-41Loss

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 9.

W:WK15,48:B4,K41,K47

MoveResult
15-10Loss
15-20Loss
15-24Loss
15-29Loss
15-33Loss
15-38Loss
15-42Loss
48-42Win
48-43Loss

Win with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

W:WK26,47:B5,K43,K48

MoveResult
26-21Loss
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.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

W:WK1,46:B5,K16,K50

MoveResult
1-6Loss
1-7Loss
1-12Draw
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.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

W:WK26,47:B5,K43,K48

MoveResult
26-21Loss
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 4, Black 1.

B:WK1,21:BK33,K39,45

MoveResult
33-28Win
33-22Win
33-17Draw
33-11Win
33-6Win
33-29Draw
33-24Draw
33-20Draw
33-15Draw
33-38Draw
33-42Draw
33-47Draw
39-34Win
39-30Draw
39-25Win
39-43Draw
39-48Win
39-44Draw
39-50Draw
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 9.

W:WK26,47:B5,K43,K48

MoveResult
26-21Loss
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.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

W:WK6,46:B5,K12,K50

MoveResult
6-1Loss
6-11Loss
6-17Loss
6-22Loss
6-28Loss
6-33Loss
6-39Loss
6-44Loss
46-41Loss