Non capture positions

Win: 43.721 (0.4%)
Draw: 6.345.691 (56.7%)
Lose: 4.800.884 (42.9%)

All positions

Win: 253.012 (1.6%)
Draw: 9.487.647 (61.9%)
Lose: 5.598.731 (36.5%)

Native examples were selected after counting from 14984 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

White to move: Win. Pip count: White 5, Black 0.

W:W7,12,15:BK23,K41

MoveResult
7-1Win
15-10Draw
7-2Draw
12-8Draw

Only move to draw

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Draw. Pip count: White 7, Black 0.

W:W6,11,21:BK40,K50

MoveResult
21-16Loss
6-1Draw
11-7Loss
21-17Loss

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 10, Black 0.

W:W7,12,37:BK9,K45

MoveResult
7-1Win
37-31Draw
7-2Draw
12-8Draw
37-32Loss

Win with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

Black to move: Win. Pip count: White 6, Black 0.

B:W6,11,16:BK1,K9

MoveResult
1-7Draw
1-12Draw
1-18Draw
1-23Draw
1-29Draw
1-34Draw
1-40Draw
1-45Draw
9-3Win
9-4Win
9-13Win
9-18Win
9-22Win
9-27Win
9-31Win
9-36Win
9-14Win
9-20Win
9-25Win

Draw with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

Black to move: Draw. Pip count: White 7, Black 0.

B:W6,7,29:BK21,K22

MoveResult
21-16Draw
21-17Draw
21-12Loss
21-8Draw
21-3Draw
21-26Draw
21-27Draw
21-32Draw
21-38Draw
21-43Draw
21-49Draw
22-17Draw
22-11Loss
22-18Draw
22-13Draw
22-9Draw
22-4Draw
22-27Draw
22-31Draw
22-36Draw
22-28Draw
22-33Draw
22-39Draw
22-44Draw
22-50Draw

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 26, Black 0.

W:W44,48,49:BK32,K34

MoveResult
44-39Win
48-42Loss
49-43Loss
44-40Loss
48-43Loss

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.