Non capture positions

Win: 3.472.867 (24.8%)
Draw: 10.540.561 (75.2%)
Lose: 0 (0.0%)

All positions

Win: 18.422.223 (48.3%)
Draw: 19.702.916 (51.7%)
Lose: 12.541 (0.0%)

Native examples were selected after counting from 6267 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 0, Black 1.

W:WK20,K35,K50:B45,K49

MoveResult
20-14Draw
20-9Draw
20-3Draw
20-15Draw
20-24Draw
20-29Draw
20-33Draw
20-38Draw
20-42Draw
20-47Draw
20-25Win
35-30Draw
35-24Draw
35-19Draw
35-13Draw
35-8Draw
35-2Draw
35-40Draw
35-44Draw
50-44Draw
50-39Draw
50-33Draw
50-28Draw
50-22Draw
50-17Draw
50-11Draw
50-6Draw

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 0, Black 1.

B:WK9,K34,K50:BK6,45

MoveResult
6-1Draw
6-11Loss
6-17Loss
6-22Loss
6-28Loss
6-33Loss
6-39Loss
6-44Loss

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 0, Black 3.

W:WK14,K20,K30:B32,K37

MoveResult
14-9Draw
14-3Draw
14-10Loss
14-5Loss
14-19Loss
14-23Loss
14-28Draw
20-15Draw
20-24Draw
20-29Loss
20-33Loss
20-38Win
20-42Loss
20-47Draw
20-25Draw
30-24Draw
30-19Draw
30-13Draw
30-8Draw
30-2Draw
30-25Draw
30-34Loss
30-39Loss
30-43Draw
30-48Draw
30-35Draw

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 0, Black 3.

B:WK8,K18,K21:B32,K38

MoveResult
38-33Loss
38-29Loss
38-24Loss
38-20Loss
38-15Draw
38-42Loss
38-47Draw
38-43Loss
38-49Win
32-37Draw

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 0, Black 1.

B:WK2,K36,K42:B45,K50

MoveResult
50-44Draw
50-39Draw
50-33Draw
50-28Draw
50-22Draw
50-17Draw
50-11Draw
50-6Draw

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 0, Black 1.

W:WK1,K7,K22:B44,K50

MoveResult
1-6Draw
7-2Draw
7-11Draw
7-16Draw
7-12Draw
7-18Draw
7-23Draw
7-29Draw
7-34Draw
7-40Win
7-45Draw
22-17Draw
22-11Draw
22-6Draw
22-18Draw
22-13Draw
22-9Draw
22-4Draw
22-27Draw
22-31Draw
22-36Draw
22-28Draw
22-33Draw
22-39Draw

Promotion trap

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

No qualifying example proved from the available WDL data.

Both sides at highest pip count: win

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

No qualifying example proved from the available WDL data.

Both sides at highest pip count: loss

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

No qualifying example proved from the available WDL data.