Non capture positions

Win: 3.370.895 (6.4%)
Draw: 49.697.252 (93.6%)
Lose: 5.953 (0.0%)

All positions

Win: 23.053.969 (24.9%)
Draw: 68.820.741 (74.4%)
Lose: 637.270 (0.7%)

Native examples were selected after counting from 9729 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 18, Black 9.

W:WK26,46,49:B5,K10

MoveResult
26-21Draw
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Draw
26-37Win
26-42Draw
26-48Draw
49-43Draw
46-41Draw
49-44Draw

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 16, Black 5.

W:WK31,37,50:BK18,22

MoveResult
31-26Draw
31-27Loss
31-36Loss
50-44Loss
37-32Loss
50-45Loss

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 18, Black 2.

W:WK23,46,50:B37,K41

MoveResult
23-18Draw
23-12Draw
23-7Draw
23-1Draw
23-19Loss
23-14Loss
23-10Loss
23-5Loss
23-28Loss
23-32Win
23-29Draw
23-34Draw
23-40Draw
23-45Draw
50-44Loss
50-45Loss

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 18, Black 9.

B:WK5,48,49:B4,K46

MoveResult
46-41Loss
46-37Loss
46-32Loss
46-28Loss
46-23Loss
46-19Loss
46-14Loss
46-10Loss
4-10Win
4-9Win

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 18, Black 9.

B:WK26,46,49:B5,K10

MoveResult
10-4Draw
10-14Loss
10-19Loss
10-23Loss
10-28Loss
10-32Loss
10-37Loss
10-41Loss
10-15Draw

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 18, Black 9.

W:WK26,46,49:B5,K10

MoveResult
26-21Draw
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Draw
26-37Win
26-42Draw
26-48Draw
49-43Draw
46-41Draw
49-44Draw

Promotion trap

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

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White to move: Win. Pip count: White 5, Black 2.

W:W8,23,K28:BK5,40

MoveResult
28-22Loss
28-17Draw
28-11Draw
28-6Draw
28-32Draw
28-37Draw
28-41Draw
28-46Win
28-33Draw
28-39Draw
28-44Draw
28-50Draw
8-2Draw
23-18Draw
8-3Draw
23-19Draw

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 18, Black 9.

W:WK26,46,49:B5,K10

MoveResult
26-21Draw
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Draw
26-37Win
26-42Draw
26-48Draw
49-43Draw
46-41Draw
49-44Draw

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 18, Black 9.

W:WK5,48,49:B4,K46

MoveResult
5-10Loss
5-14Loss
5-19Loss
5-23Loss
5-28Loss
5-32Loss
5-37Loss
5-41Loss
48-42Loss
49-43Loss
48-43Loss
49-44Loss