Non capture positions

Win: 33.877.337 (6.5%)
Draw: 490.966.511 (93.5%)
Lose: 134 (0.0%)

All positions

Win: 478.381.583 (41.4%)
Draw: 673.068.728 (58.2%)
Lose: 4.354.889 (0.4%)

Native examples were selected after counting from 7159 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 0.

W:W6,K16,K21,36:BK19,K50

MoveResult
16-11Draw
16-7Draw
16-2Draw
21-17Win
21-12Draw
21-8Draw
21-3Draw
21-26Draw
21-27Draw
21-32Draw
21-38Draw
21-43Draw
21-49Draw
6-1Draw
36-31Draw

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 10, Black 0.

B:WK4,10,K14,50:BK5,K36

MoveResult
36-31Loss
36-27Loss
36-22Loss
36-18Loss
36-13Loss
36-9Loss
36-41Loss
36-47Draw

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 10, Black 0.

W:WK5,K9,17,38:BK34,K46

MoveResult
5-10Draw
5-14Draw
5-19Loss
5-23Loss
5-28Loss
5-32Loss
5-37Loss
5-41Loss
9-3Draw
9-4Draw
9-13Loss
9-18Loss
9-22Draw
9-27Draw
9-31Draw
9-36Draw
9-14Win
9-20Draw
9-25Draw
17-11Draw
38-32Draw
17-12Draw
38-33Loss

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 5, Black 0.

B:W7,K19,23,K34:BK26,K36

MoveResult
26-21Draw
26-17Draw
26-12Win
26-8Loss
26-3Draw
26-31Draw
26-37Draw
26-42Draw
26-48Draw
36-31Draw
36-27Draw
36-22Draw
36-18Draw
36-13Loss
36-9Draw
36-4Draw
36-41Draw
36-47Draw

Draw with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

Black to move: Draw. Pip count: White 8, Black 0.

B:W6,K8,K9,36:BK43,K50

MoveResult
43-38Draw
43-32Draw
43-27Loss
43-21Loss
43-16Draw
43-39Draw
43-34Draw
43-30Loss
43-25Draw
43-48Draw
43-49Draw
50-44Draw
50-39Draw
50-33Draw
50-28Draw
50-22Loss
50-17Loss
50-11Loss
50-45Draw

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 0.

W:W6,K16,K21,36:BK19,K50

MoveResult
16-11Draw
16-7Draw
16-2Draw
21-17Win
21-12Draw
21-8Draw
21-3Draw
21-26Draw
21-27Draw
21-32Draw
21-38Draw
21-43Draw
21-49Draw
6-1Draw
36-31Draw

Promotion trap

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Win. Pip count: White 8, Black 0.

W:W6,K16,K21,36:BK19,K50

MoveResult
16-11Draw
16-7Draw
16-2Draw
21-17Win
21-12Draw
21-8Draw
21-3Draw
21-26Draw
21-27Draw
21-32Draw
21-38Draw
21-43Draw
21-49Draw
6-1Draw
36-31Draw

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.