Non capture positions

Win: 16.683.337 (1.8%)
Draw: 919.726.026 (97.9%)
Lose: 2.830.156 (0.3%)

All positions

Win: 125.744.970 (6.0%)
Draw: 1.891.376.642 (90.9%)
Lose: 64.397.938 (3.1%)

Native examples were selected after counting from 9106 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:WK26,46,47:B5,K43,K48

MoveResult
26-21Loss
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Loss
26-37Loss
26-42Loss
47-41Draw
46-41Draw
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 15, Black 1.

W:WK1,32,47:BK30,K35,45

MoveResult
1-6Draw
1-7Loss
1-12Loss
1-18Loss
1-23Loss
1-29Loss
1-34Loss
1-40Loss
32-27Loss
47-41Loss
32-28Loss
47-42Loss

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 9.

W:WK14,47,48:B5,K26,K33

MoveResult
14-9Draw
14-3Loss
14-10Loss
14-19Draw
14-23Draw
14-28Loss
14-32Draw
14-37Win
14-41Draw
14-46Draw
14-20Loss
14-25Draw
47-41Draw
48-42Draw
47-42Draw
48-43Draw

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 18, Black 9.

W:WK26,46,47:B5,K43,K48

MoveResult
26-21Loss
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Loss
26-37Loss
26-42Loss
47-41Draw
46-41Draw
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 9, Black 4.

W:W6,42,K47:BK15,K19,27

MoveResult
47-41Draw
47-36Draw
42-37Draw
6-1Draw
42-38Win

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:WK26,46,47:B5,K43,K48

MoveResult
26-21Loss
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Loss
26-37Loss
26-42Loss
47-41Draw
46-41Draw
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 18, Black 9.

W:WK6,46,47:B5,K18,K50

MoveResult
6-1Loss
6-11Loss
6-17Loss
6-22Loss
6-28Loss
6-33Loss
6-39Loss
6-44Loss
47-41Loss
46-41Loss
47-42Loss