Non capture positions

Win: 392.679 (1.9%)
Draw: 20.323.616 (98.1%)
Lose: 520 (0.0%)

All positions

Win: 5.828.061 (10.2%)
Draw: 51.075.655 (89.3%)
Lose: 302.804 (0.5%)

Native examples were selected after counting from 6121 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:WK10,K16:BK12,44,K49

MoveResult
10-4Draw
10-5Draw
10-14Draw
10-19Draw
10-23Loss
10-28Draw
10-32Win
10-37Draw
10-41Draw
10-46Draw
10-15Draw
16-11Draw
16-7Draw
16-2Draw
16-21Draw
16-27Draw
16-32Draw
16-38Loss
16-43Loss

Only move to draw

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

No qualifying example proved from the available WDL data.

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 2.

W:WK18,K23:BK1,K17,38

MoveResult
18-12Loss
18-7Loss
18-13Draw
18-9Draw
18-4Draw
18-22Loss
18-27Draw
18-31Draw
18-36Draw
23-19Loss
23-14Loss
23-10Loss
23-5Draw
23-28Loss
23-32Loss
23-37Loss
23-41Loss
23-46Draw
23-29Loss
23-34Loss
23-40Loss
23-45Win

Win with fewer pieces

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

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White to move: Win. Pip count: White 0, Black 1.

W:WK10,K16:BK12,44,K49

MoveResult
10-4Draw
10-5Draw
10-14Draw
10-19Draw
10-23Loss
10-28Draw
10-32Win
10-37Draw
10-41Draw
10-46Draw
10-15Draw
16-11Draw
16-7Draw
16-2Draw
16-21Draw
16-27Draw
16-32Draw
16-38Loss
16-43Loss

Draw with fewer pieces

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

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White to move: Draw. Pip count: White 0, Black 1.

W:WK6,K35:B45,K48,K50

MoveResult
6-1Draw
6-11Draw
6-17Draw
6-22Draw
6-28Draw
6-33Draw
6-39Draw
6-44Draw
35-30Loss
35-24Loss
35-19Loss
35-13Loss
35-8Loss
35-2Draw
35-40Loss
35-44Draw
35-49Draw

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:WK10,K16:BK12,44,K49

MoveResult
10-4Draw
10-5Draw
10-14Draw
10-19Draw
10-23Loss
10-28Draw
10-32Win
10-37Draw
10-41Draw
10-46Draw
10-15Draw
16-11Draw
16-7Draw
16-2Draw
16-21Draw
16-27Draw
16-32Draw
16-38Loss
16-43Loss

Promotion trap

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

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Black to move: Win. Pip count: White 0, Black 1.

B:WK18,K26:BK41,44,K48

MoveResult
41-36Draw
41-37Win
41-32Draw
41-28Draw
41-23Draw
41-19Draw
41-14Draw
41-10Draw
41-5Draw
41-46Draw
41-47Draw
48-42Draw
48-37Draw
48-31Draw
48-43Draw
48-39Draw
48-34Draw
48-30Draw
48-25Draw
44-50Draw
44-49Draw

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.