Non capture positions

Win: 0 (0.0%)
Draw: 78.063 (11.1%)
Lose: 627.030 (88.9%)

All positions

Win: 460 (0.1%)
Draw: 90.091 (10.9%)
Lose: 738.529 (89.1%)

Native examples were selected after counting from 17954 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 1, Black 0.

B:W6:BK19,K37,K42

MoveResult
19-13Draw
19-8Draw
19-2Draw
19-14Draw
19-10Draw
19-5Draw
19-23Draw
19-28Draw
19-32Draw
19-24Draw
19-30Draw
19-35Draw
37-31Draw
37-26Draw
37-32Draw
37-28Draw
37-23Draw
37-41Draw
37-46Draw
42-38Draw
42-33Draw
42-29Win
42-24Draw
42-20Draw
42-15Draw
42-47Draw
42-48Draw

Only move to draw

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Draw. Pip count: White 1, Black 0.

W:W7:BK30,K49,K50

MoveResult
7-1Draw
7-2Loss

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 1, Black 0.

W:W6:BK10,K15,K50

MoveResult
6-1Draw

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 1, Black 0.

B:W7:BK3,K20,K49

MoveResult
3-8Draw
3-12Win
3-17Draw
3-21Draw
3-26Draw
3-9Draw
3-14Draw
20-14Draw
20-9Draw
20-15Draw
20-24Draw
20-29Draw
20-33Draw
20-38Draw
20-42Draw
20-47Draw
20-25Draw
49-43Draw
49-38Draw
49-32Draw
49-27Draw
49-21Draw
49-16Draw
49-44Draw
49-40Draw
49-35Draw

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.