Non capture positions

Win: 3.167.431.065 (94.9%)
Draw: 170.903.135 (5.1%)
Lose: 1.861 (0.0%)

All positions

Win: 11.762.242.572 (95.7%)
Draw: 528.352.602 (4.3%)
Lose: 1.918.026 (0.0%)

Native examples were selected after counting from 4178 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 8.

W:WK6,9,13,K17:B23,38,43

MoveResult
6-1Win
6-11Draw
17-11Draw
17-12Draw
17-8Draw
17-3Draw
17-21Draw
17-26Draw
17-22Draw
17-28Draw
17-33Draw
17-39Draw
17-44Draw
17-50Draw
9-3Draw
13-8Draw
9-4Draw

Only move to draw

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

Black to move: Draw. Pip count: White 3, Black 9.

B:W7,11,K19,K26:B20,39,44

MoveResult
20-25Loss
44-50Draw
20-24Loss
39-43Loss
44-49Loss

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

Black to move: Draw. Pip count: White 3, Black 3.

B:WK1,K2,7,12:B42,43,44

MoveResult
42-48Draw
43-49Draw
44-50Draw
42-47Draw
43-48Draw
44-49Draw

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 12, Black 6.

W:WK3,23,K29,41:B34,40,43

MoveResult
3-8Draw
3-12Draw
3-17Draw
3-21Draw
3-26Draw
3-9Draw
3-14Draw
3-20Draw
3-25Draw
29-24Draw
29-20Draw
29-15Draw
29-33Draw
29-38Draw
29-42Draw
29-47Draw
23-18Win
41-36Draw
23-19Draw
41-37Draw

Promotion trap

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Win. Pip count: White 3, Black 9.

W:W7,11,K19,K26:B20,39,44

MoveResult
19-13Draw
19-8Draw
19-2Draw
19-14Draw
19-10Draw
19-5Draw
19-23Draw
19-28Draw
19-32Draw
19-37Draw
19-41Draw
19-46Draw
19-24Draw
19-30Draw
19-35Draw
26-21Draw
26-17Draw
26-12Draw
26-8Draw
26-3Draw
26-31Draw
26-37Draw
26-42Draw
26-48Draw
7-1Draw
11-6Win
7-2Win

Both sides at highest pip count: win

Both sides attain their maximum pip count; the player to move wins.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Win. Pip count: White 18, Black 27.

W:WK1,K2,46,47:B3,4,5

MoveResult
1-6Win
1-7Win
1-12Win
1-18Win
1-23Win
1-29Win
1-34Win
1-40Win
1-45Win
2-7Win
2-11Win
2-16Win
2-8Win
2-13Win
2-19Win
2-24Win
2-30Win
2-35Win
47-41Win
46-41Win
47-42Win

Both sides at highest pip count: loss

Both sides attain their maximum pip count; the player to move loses.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

Black to move: Loss. Pip count: White 18, Black 27.

B:WK1,K2,46,47:B3,4,5

MoveResult
3-9Loss
4-10Loss
3-8Loss
4-9Loss
5-10Loss