Non capture positions

Win: 66.781 (2.4%)
Draw: 2.734.001 (97.6%)
Lose: 1.537 (0.1%)

All positions

Win: 882.645 (19.7%)
Draw: 3.568.953 (79.7%)
Lose: 26.562 (0.6%)

Native examples were selected after counting from 11295 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,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 1, Black 1.

W:WK3,8:BK25,41

MoveResult
3-9Loss
3-14Loss
3-20Loss
8-2Draw

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 4, Black 9.

W:WK5,22:B2,K46

MoveResult
5-10Loss
5-14Loss
5-19Loss
5-23Loss
5-28Loss
5-32Loss
5-37Loss
5-41Loss
22-17Loss
22-18Loss

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:WK5,47:B4,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.

No qualifying example proved from the available WDL data.

Draw with fewer pieces

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

No qualifying example proved from the available WDL data.

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,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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White to move: Win. Pip count: White 1, Black 9.

W:W8,K12:BK3,4

MoveResult
12-7Loss
12-1Draw
12-17Loss
12-21Loss
12-26Win
12-18Loss
12-23Loss
12-29Loss
12-34Loss
12-40Loss
12-45Draw
8-2Draw

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,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.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

W:WK46,50:B5,K10

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