Non capture positions

Win: 377.009.568 (98.9%)
Draw: 4.223.499 (1.1%)
Lose: 81 (0.0%)

All positions

Win: 928.206.149 (99.3%)
Draw: 6.840.893 (0.7%)
Lose: 13.358 (0.0%)

Native examples were selected after counting from 6416 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.

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White to move: Win. Pip count: White 10, Black 2.

W:W7,K25,K38,48:B44,45

MoveResult
25-20Draw
25-14Draw
25-9Draw
25-3Draw
25-30Draw
25-34Draw
25-39Draw
25-43Draw
38-32Draw
38-27Draw
38-21Draw
38-16Draw
38-33Draw
38-29Draw
38-24Draw
38-20Draw
38-15Draw
38-42Draw
38-47Draw
38-43Draw
38-49Win
7-1Draw
48-42Draw
7-2Draw
48-43Draw

Only move to draw

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

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Black to move: Draw. Pip count: White 3, Black 2.

B:W6,K13,15,K28:B43,45

MoveResult
43-49Loss
43-48Loss
45-50Draw

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.

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White to move: Win. Pip count: White 10, Black 3.

W:W11,K12,K19,44:B37,41

MoveResult
12-7Draw
12-1Draw
12-8Loss
12-3Draw
12-17Win
12-21Loss
12-26Draw
12-18Loss
12-23Draw
12-29Draw
12-34Draw
12-40Draw
12-45Draw
19-13Draw
19-8Draw
19-2Draw
19-14Loss
19-10Loss
19-5Loss
19-23Loss
19-28Loss
19-32Draw
19-24Draw
19-30Draw
19-35Draw
11-6Draw
44-39Loss
11-7Draw
44-40Loss

Win with fewer pieces

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

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Black to move: Win. Pip count: White 11, Black 3.

B:WK17,30,31,K41:B39,44

MoveResult
44-50Win
39-43Draw
44-49Loss

Draw with fewer pieces

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

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Black to move: Draw. Pip count: White 10, Black 2.

B:W7,K25,K38,48:B44,45

MoveResult
44-50Loss
44-49Draw
45-50Draw

Unique winning sacrifice

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

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White to move: Win. Pip count: White 7, Black 3.

W:WK5,K6,17,21:B38,44

MoveResult
5-10Draw
5-14Draw
5-19Draw
5-23Draw
5-28Draw
5-32Win
5-37Draw
5-41Draw
5-46Draw
6-1Draw
6-11Draw
17-11Draw
21-16Draw
17-12Draw

Promotion trap

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

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White to move: Win. Pip count: White 10, Black 2.

W:W7,K25,K38,48:B44,45

MoveResult
25-20Draw
25-14Draw
25-9Draw
25-3Draw
25-30Draw
25-34Draw
25-39Draw
25-43Draw
38-32Draw
38-27Draw
38-21Draw
38-16Draw
38-33Draw
38-29Draw
38-24Draw
38-20Draw
38-15Draw
38-42Draw
38-47Draw
38-43Draw
38-49Win
7-1Draw
48-42Draw
7-2Draw
48-43Draw

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 18.

W:WK11,K12,46,47:B4,5

MoveResult
11-6Win
11-7Win
11-2Win
11-16Win
11-17Win
11-22Win
11-28Win
11-33Win
11-39Win
11-44Win
11-50Win
12-7Win
12-1Win
12-8Win
12-3Win
12-17Win
12-21Win
12-26Win
12-18Win
12-23Win
12-29Win
12-34Win
12-40Win
12-45Win
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.

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

B:WK11,K12,46,47:B4,5

MoveResult
4-10Loss
4-9Loss
5-10Loss