Non capture positions

Win: 33.918 (0.2%)
Draw: 19.541.907 (97.8%)
Lose: 396.123 (2.0%)

All positions

Win: 677.427 (1.8%)
Draw: 35.700.282 (93.6%)
Lose: 1.759.971 (4.6%)

Native examples were selected after counting from 11557 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 0.

W:WK35,50:BK7,K38,K49

MoveResult
35-30Draw
35-24Loss
35-19Loss
35-13Loss
35-8Loss
35-2Loss
35-40Loss
35-44Loss
50-44Win
50-45Loss

Only move to draw

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Draw. Pip count: White 9, Black 0.

W:WK5,50:BK38,K39,K49

MoveResult
5-10Loss
5-14Loss
5-19Loss
5-23Loss
5-28Loss
5-32Loss
5-37Loss
5-41Loss
5-46Loss
50-44Draw
50-45Loss

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 0.

W:WK35,50:BK7,K38,K49

MoveResult
35-30Draw
35-24Loss
35-19Loss
35-13Loss
35-8Loss
35-2Loss
35-40Loss
35-44Loss
50-44Win
50-45Loss

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 0.

W:WK35,50:BK7,K38,K49

MoveResult
35-30Draw
35-24Loss
35-19Loss
35-13Loss
35-8Loss
35-2Loss
35-40Loss
35-44Loss
50-44Win
50-45Loss

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 0.

W:WK47,50:BK45,K48,K49

MoveResult
47-41Draw
47-36Draw
47-42Loss
47-38Loss
47-33Loss
47-29Loss
47-24Loss
47-20Loss
47-15Draw
50-44Draw

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 0.

W:WK35,50:BK7,K38,K49

MoveResult
35-30Draw
35-24Loss
35-19Loss
35-13Loss
35-8Loss
35-2Loss
35-40Loss
35-44Loss
50-44Win
50-45Loss

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.