Non capture positions

Win: 477.082 (5.7%)
Draw: 7.835.942 (94.3%)
Lose: 0 (0.0%)

All positions

Win: 3.721.724 (17.6%)
Draw: 17.453.342 (82.4%)
Lose: 12.534 (0.1%)

Native examples were selected after counting from 7094 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:WK6,K23,K45:BK42,K50

MoveResult
6-1Draw
6-11Draw
6-17Draw
6-22Draw
6-28Draw
6-33Loss
6-39Draw
6-44Draw
23-18Draw
23-12Draw
23-7Draw
23-1Draw
23-19Draw
23-14Draw
23-10Draw
23-5Draw
23-28Win
23-32Draw
23-37Draw
23-41Draw
23-46Draw
23-29Draw
23-34Draw
23-40Draw
45-40Draw
45-34Draw
45-29Draw

Only move to draw

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

No qualifying example proved from the available WDL data.

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:WK8,K34,K50:BK28,K33

MoveResult
8-2Draw
8-3Draw
8-12Draw
8-17Loss
8-21Draw
8-26Draw
8-13Loss
8-19Draw
8-24Draw
8-30Draw
8-35Draw
34-29Draw
34-23Draw
34-18Draw
34-12Draw
34-7Draw
34-1Draw
34-30Draw
34-25Draw
34-39Win
34-43Draw
34-48Draw
34-40Loss
34-45Draw
50-44Draw
50-39Draw
50-45Draw

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 0, Black 0.

B:WK8,K18,K26:BK42,K48

MoveResult
42-37Win
42-31Draw
42-38Draw
42-33Draw
42-29Draw
42-24Draw
42-20Draw
42-15Draw
42-47Draw
48-43Loss
48-39Loss
48-34Loss
48-30Loss
48-25Draw

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 0, Black 0.

B:WK3,K16,K26:BK49,K50

MoveResult
49-43Draw
49-38Draw
49-32Draw
49-27Draw
49-21Draw
49-44Draw
49-40Draw
49-35Draw
50-44Draw
50-39Draw
50-33Draw
50-28Draw
50-22Draw
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.

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

W:WK6,K23,K45:BK42,K50

MoveResult
6-1Draw
6-11Draw
6-17Draw
6-22Draw
6-28Draw
6-33Loss
6-39Draw
6-44Draw
23-18Draw
23-12Draw
23-7Draw
23-1Draw
23-19Draw
23-14Draw
23-10Draw
23-5Draw
23-28Win
23-32Draw
23-37Draw
23-41Draw
23-46Draw
23-29Draw
23-34Draw
23-40Draw
45-40Draw
45-34Draw
45-29Draw

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.