Non capture positions

Win: 17.867.630 (88.5%)
Draw: 2.327.578 (11.5%)
Lose: 1 (0.0%)

All positions

Win: 41.627.171 (90.0%)
Draw: 4.627.486 (10.0%)
Lose: 1.333 (0.0%)

Native examples were selected after counting from 7475 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 8, Black 2.

W:WK11,K41,44:B43,45

MoveResult
11-6Draw
11-7Draw
11-2Draw
11-16Draw
11-17Draw
11-22Draw
11-28Draw
11-33Draw
11-39Draw
41-36Draw
41-37Draw
41-32Draw
41-28Draw
41-23Draw
41-19Draw
41-14Draw
41-10Draw
41-5Draw
41-46Draw
41-47Draw
44-39Win
44-40Draw

Only move to draw

At least two legal moves; exactly one draws and every alternative loses.

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Black to move: Draw. Pip count: White 6, Black 3.

B:WK9,K22,31:B40,45

MoveResult
40-44Loss
45-50Draw

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 5, Black 3.

W:WK6,K20,27:B39,44

MoveResult
6-1Draw
6-11Loss
6-17Loss
6-22Loss
6-28Loss
6-33Draw
20-14Loss
20-9Loss
20-3Draw
20-15Draw
20-24Loss
20-29Loss
20-33Win
20-38Loss
20-42Loss
20-47Draw
20-25Draw
27-21Loss
27-22Draw

Win with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

Black to move: Win. Pip count: White 5, Black 3.

B:WK6,K20,27:B39,44

MoveResult
44-50Win
39-43Draw
44-49Draw

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 2, Black 2.

B:WK9,K12,13:B44,45

MoveResult
44-50Draw
44-49Draw
45-50Draw

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 8, Black 2.

W:WK11,K41,44:B43,45

MoveResult
11-6Draw
11-7Draw
11-2Draw
11-16Draw
11-17Draw
11-22Draw
11-28Draw
11-33Draw
11-39Draw
41-36Draw
41-37Draw
41-32Draw
41-28Draw
41-23Draw
41-19Draw
41-14Draw
41-10Draw
41-5Draw
41-46Draw
41-47Draw
44-39Win
44-40Draw

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 3.

W:W6,K16,K29:B37,45

MoveResult
16-11Draw
16-7Draw
16-2Draw
16-21Draw
16-27Draw
16-32Draw
16-38Draw
16-43Draw
16-49Draw
29-23Draw
29-18Draw
29-12Draw
29-7Draw
29-1Draw
29-24Draw
29-20Draw
29-15Draw
29-33Draw
29-38Draw
29-42Draw
29-47Win
29-34Draw
29-40Draw
6-1Draw

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 18.

W:WK13,K14,47:B4,5

MoveResult
13-8Win
13-2Win
13-9Win
13-18Win
13-22Win
13-27Win
13-31Win
13-36Win
13-19Win
13-24Win
13-30Win
13-35Win
14-9Win
14-3Win
14-10Win
14-19Win
14-23Win
14-28Win
14-32Win
14-37Win
14-41Win
14-46Win
14-20Win
14-25Win
47-41Win
47-42Win

Both sides at highest pip count: loss

Both sides attain their maximum pip count; the player to move loses.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

Black to move: Loss. Pip count: White 9, Black 18.

B:WK13,K14,47:B4,5

MoveResult
4-10Loss
4-9Loss
5-10Loss