Non capture positions

Win: 17.757.371 (47.5%)
Draw: 19.587.067 (52.4%)
Lose: 2.195 (0.0%)

All positions

Win: 91.893.946 (59.6%)
Draw: 62.234.847 (40.4%)
Lose: 81.032 (0.1%)

Native examples were selected after counting from 4054 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 12.

W:WK2,K3:B18,29,44,45

MoveResult
2-7Draw
2-11Draw
2-16Draw
2-8Draw
2-13Win
2-19Draw
2-24Draw
2-30Draw
2-35Draw
3-8Draw
3-12Draw
3-17Draw
3-21Draw
3-26Draw
3-9Draw
3-14Draw
3-20Draw
3-25Draw

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 0, Black 22.

B:WK49,K50:B5,8,30,45

MoveResult
8-13Loss
30-35Loss
5-10Draw
8-12Loss
30-34Loss

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.

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White to move: Win. Pip count: White 0, Black 12.

W:WK2,K3:B18,29,44,45

MoveResult
2-7Draw
2-11Draw
2-16Draw
2-8Draw
2-13Win
2-19Draw
2-24Draw
2-30Draw
2-35Draw
3-8Draw
3-12Draw
3-17Draw
3-21Draw
3-26Draw
3-9Draw
3-14Draw
3-20Draw
3-25Draw

Draw with fewer pieces

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

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White to move: Draw. Pip count: White 0, Black 9.

W:WK31,K46:B20,43,44,45

MoveResult
31-26Draw
31-27Draw
31-22Draw
31-18Draw
31-13Draw
31-9Draw
31-4Draw
31-36Draw
31-37Draw
31-42Draw
31-48Draw
46-41Draw
46-37Draw
46-32Draw
46-28Draw
46-23Draw
46-19Draw
46-14Draw
46-10Draw
46-5Draw

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 0, Black 12.

W:WK2,K3:B18,29,44,45

MoveResult
2-7Draw
2-11Draw
2-16Draw
2-8Draw
2-13Win
2-19Draw
2-24Draw
2-30Draw
2-35Draw
3-8Draw
3-12Draw
3-17Draw
3-21Draw
3-26Draw
3-9Draw
3-14Draw
3-20Draw
3-25Draw

Promotion trap

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

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Black to move: Win. Pip count: White 0, Black 10.

B:WK18,K46:B30,32,37,45

MoveResult
30-35Draw
32-38Draw
37-42Draw
30-34Win
37-41Draw
45-50Draw

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.