Non capture positions

Win: 1.283.501 (0.2%)
Draw: 216.665.045 (33.2%)
Lose: 433.999.804 (66.6%)

All positions

Win: 27.023.670 (1.7%)
Draw: 988.279.231 (64.0%)
Lose: 529.662.299 (34.3%)

Native examples were selected after counting from 9507 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,K30,K43,K48

MoveResult
26-21Loss
26-17Loss
26-12Loss
26-8Loss
26-3Loss
26-31Loss
26-37Loss
26-42Loss
47-41Loss
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:WK16,46:B5,K32,K38,K50

MoveResult
16-11Loss
16-7Loss
16-2Loss
16-21Loss
16-27Loss
46-41Draw

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.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

W:WK26,47:B5,K30,K43,K48

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

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,K30,K43,K48

MoveResult
26-21Loss
26-17Loss
26-12Loss
26-8Loss
26-3Loss
26-31Loss
26-37Loss
26-42Loss
47-41Loss
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:WK16,46:B5,K32,K38,K50

MoveResult
16-11Loss
16-7Loss
16-2Loss
16-21Loss
16-27Loss
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,K30,K43,K48

MoveResult
26-21Loss
26-17Loss
26-12Loss
26-8Loss
26-3Loss
26-31Loss
26-37Loss
26-42Loss
47-41Loss
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 1.

B:WK2,6:BK37,K40,45,K49

MoveResult
37-31Win
37-26Win
37-32Win
37-28Win
37-23Win
37-19Win
37-14Win
37-10Win
37-5Win
37-41Win
37-46Win
37-42Win
37-48Win
40-34Win
40-29Draw
40-23Draw
40-18Draw
40-12Draw
40-7Draw
40-1Win
40-35Win
40-44Draw
49-43Draw
49-38Draw
49-32Draw
49-27Draw
49-21Draw
49-16Win
49-44Draw
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 9.

W:WK26,47:B5,K30,K43,K48

MoveResult
26-21Loss
26-17Loss
26-12Loss
26-8Loss
26-3Loss
26-31Loss
26-37Loss
26-42Loss
47-41Loss
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:WK1,46:B5,K15,K49,K50

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