Non capture positions

Win: 13.231.266 (17.7%)
Draw: 61.577.205 (82.3%)
Lose: 0 (0.0%)

All positions

Win: 147.550.768 (61.9%)
Draw: 90.773.220 (38.1%)
Lose: 36.512 (0.0%)

Native examples were selected after counting from 5262 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 0, Black 0.

W:WK1,K11,K17,K43:BK41,K50

MoveResult
1-6Draw
1-7Draw
1-12Draw
1-18Draw
1-23Draw
1-29Draw
1-34Draw
1-40Draw
1-45Draw
11-6Win
11-7Draw
11-2Draw
11-16Draw
17-12Draw
17-8Draw
17-3Draw
17-21Draw
17-26Draw
17-22Draw
17-28Draw
17-33Draw
17-39Draw
17-44Draw
43-38Draw
43-32Draw
43-27Draw
43-21Draw
43-16Draw
43-39Draw
43-34Draw
43-30Draw
43-25Draw
43-48Draw
43-49Draw

Only move to draw

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

B:WK3,K6,K18,K40:BK26,K50

MoveResult
26-21Loss
26-17Loss
26-12Loss
26-8Loss
26-31Loss
26-37Loss
26-42Loss
26-48Loss
50-44Loss
50-39Loss
50-33Loss
50-28Loss
50-22Loss
50-17Loss
50-11Loss
50-45Draw

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 0, Black 0.

W:WK27,K38,K39,K45:BK1,K37

MoveResult
27-21Loss
27-16Draw
27-22Draw
27-18Draw
27-13Draw
27-9Draw
27-4Draw
27-31Draw
27-36Draw
27-32Draw
38-32Draw
38-33Draw
38-29Draw
38-24Draw
38-20Draw
38-15Draw
38-42Draw
38-47Draw
38-43Draw
38-49Draw
39-33Draw
39-28Draw
39-22Draw
39-17Draw
39-11Draw
39-6Draw
39-34Win
39-30Draw
39-25Draw
39-43Draw
39-48Draw
39-44Loss
39-50Draw
45-40Draw
45-34Draw
45-29Loss
45-23Loss
45-18Loss
45-12Loss
45-7Loss
45-50Draw

Win with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

B:WK27,K38,K39,K45:BK1,K37

MoveResult
1-6Loss
1-7Loss
1-12Loss
1-18Loss
1-23Loss
1-29Loss
1-34Loss
1-40Loss
37-31Loss
37-26Draw
37-32Draw
37-28Loss
37-23Win
37-19Loss
37-14Loss
37-10Loss
37-5Draw
37-41Loss
37-46Draw
37-42Loss
37-48Draw

Draw with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

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

B:WK1,K5,K9,K31:BK49,K50

MoveResult
49-43Draw
49-38Draw
49-32Loss
49-27Loss
49-21Draw
49-16Draw
49-44Draw
49-40Loss
49-35Draw
50-44Draw
50-39Draw
50-33Draw
50-28Loss
50-22Loss
50-17Draw
50-11Draw
50-6Draw
50-45Draw

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 0, Black 0.

W:WK13,K33,K34,K45:BK37,K49

MoveResult
13-8Draw
13-2Draw
13-9Draw
13-4Draw
13-18Draw
13-22Draw
13-27Win
13-31Draw
13-36Draw
13-19Draw
13-24Draw
13-30Draw
13-35Draw
33-28Draw
33-22Draw
33-17Draw
33-11Draw
33-6Draw
33-29Draw
33-24Draw
33-20Draw
33-15Draw
33-38Draw
33-42Draw
33-47Draw
33-39Draw
33-44Draw
33-50Draw
34-29Draw
34-23Draw
34-18Draw
34-12Draw
34-7Draw
34-1Draw
34-30Draw
34-25Draw
34-39Draw
34-43Draw
34-48Draw
34-40Draw
45-40Draw
45-50Draw

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.