Non capture positions

Win: 0 (0.0%)
Draw: 528.990 (96.8%)
Lose: 17.210 (3.2%)

All positions

Win: 16.812 (1.8%)
Draw: 863.802 (93.8%)
Lose: 40.586 (4.4%)

Native examples were selected after counting from 11234 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.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

B:WK26:BK17,K21,K48

MoveResult
17-11Draw
17-6Draw
17-12Draw
17-8Draw
17-3Win
17-22Draw
17-28Draw
17-33Draw
17-39Draw
17-44Draw
17-50Draw
21-16Draw
21-27Draw
21-32Draw
21-38Draw
21-43Draw
21-49Draw
48-42Draw
48-37Draw
48-31Draw
48-43Draw
48-39Draw
48-34Draw
48-30Draw
48-25Draw

Only move to draw

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

W:WK6:BK5,K49,K50

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.

No qualifying example proved from the available WDL data.

Win with fewer pieces

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

No qualifying example proved from the available WDL data.

Draw with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

W:WK15:BK14,K49,K50

MoveResult
15-10Loss
15-4Draw
15-20Loss
15-24Draw
15-29Draw
15-33Loss
15-38Loss
15-42Draw
15-47Draw

Unique winning sacrifice

Exactly one of at least two moves wins; every compulsory reply captures the piece offered by that move.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

B:WK38:BK35,K48,K50

MoveResult
35-30Draw
35-24Draw
35-19Draw
35-13Draw
35-8Draw
35-2Draw
35-40Draw
35-44Draw
35-49Draw
48-42Draw
48-37Draw
48-31Draw
48-26Draw
48-43Win
48-39Draw
48-34Draw
48-30Draw
48-25Draw
50-44Draw
50-39Draw
50-33Draw
50-28Draw
50-22Draw
50-17Draw
50-11Draw
50-6Draw
50-45Draw

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.