Non capture positions

Win: 12.235 (0.0%)
Draw: 5.859.346 (4.6%)
Lose: 121.442.757 (95.4%)

All positions

Win: 44.975 (0.0%)
Draw: 14.436.766 (7.5%)
Lose: 178.152.459 (92.5%)

Native examples were selected after counting from 13219 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 3, Black 0.

W:W7,12:BK13,K34,K38,K41

MoveResult
7-1Win
7-2Draw
12-8Loss

Only move to draw

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Draw. Pip count: White 2, Black 0.

W:W6,7:BK3,K4,K13,K50

MoveResult
7-1Loss
6-1Loss
7-2Draw

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 3, Black 0.

W:W7,12:BK13,K34,K38,K41

MoveResult
7-1Win
7-2Draw
12-8Loss

Win with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Win. Pip count: White 3, Black 0.

W:W7,12:BK13,K34,K38,K41

MoveResult
7-1Win
7-2Draw
12-8Loss

Draw with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Draw. Pip count: White 2, Black 0.

W:W6,7:BK3,K4,K13,K50

MoveResult
7-1Loss
6-1Loss
7-2Draw

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 2, Black 0.

B:W6,8:BK9,K22,K25,K41

MoveResult
9-3Draw
9-4Draw
9-13Draw
9-18Draw
9-14Draw
9-20Draw
22-17Draw
22-11Win
22-18Draw
22-13Draw
22-27Draw
22-31Draw
22-36Draw
22-28Draw
22-33Draw
22-39Draw
22-44Draw
22-50Draw
25-20Draw
25-14Draw
25-30Draw
25-34Draw
25-39Draw
25-43Draw
25-48Draw
41-36Draw
41-37Draw
41-32Draw
41-28Draw
41-23Draw
41-19Draw
41-14Draw
41-10Draw
41-5Draw
41-46Draw
41-47Draw

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.