Non capture positions

Win: 5.294.580 (1.7%)
Draw: 295.905.166 (97.4%)
Lose: 2.566.311 (0.8%)

All positions

Win: 105.003.627 (9.1%)
Draw: 1.038.503.293 (89.9%)
Lose: 12.298.280 (1.1%)

Native examples were selected after counting from 6405 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

White to move: Win. Pip count: White 0, Black 7.

W:WK26,K46:BK5,18,K34,44

MoveResult
26-21Loss
26-17Draw
26-12Loss
26-8Draw
26-3Draw
26-31Loss
26-37Win
26-42Loss
26-48Draw
46-41Loss
46-37Loss
46-32Loss
46-28Loss
46-23Loss
46-19Loss
46-14Loss
46-10Loss

Only move to draw

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Draw. Pip count: White 0, Black 7.

W:WK4,K5:B16,K41,43,K46

MoveResult
4-9Loss
4-13Loss
4-18Loss
4-22Loss
4-27Loss
4-31Loss
4-36Draw
4-10Loss
4-15Loss
5-10Loss
5-14Loss
5-19Loss
5-23Loss
5-28Loss
5-32Loss
5-37Loss

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.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Win. Pip count: White 0, Black 8.

W:WK30,K35:B15,K37,K40,44

MoveResult
30-24Loss
30-19Loss
30-13Loss
30-8Loss
30-2Draw
30-25Draw
30-34Draw
30-39Win
30-43Draw
30-48Draw

Win with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Win. Pip count: White 0, Black 7.

W:WK26,K46:BK5,18,K34,44

MoveResult
26-21Loss
26-17Draw
26-12Loss
26-8Draw
26-3Draw
26-31Loss
26-37Win
26-42Loss
26-48Draw
46-41Loss
46-37Loss
46-32Loss
46-28Loss
46-23Loss
46-19Loss
46-14Loss
46-10Loss

Draw with fewer pieces

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Draw. Pip count: White 0, Black 2.

W:WK8,K46:BK36,44,45,K50

MoveResult
8-2Draw
8-3Draw
8-12Draw
8-17Draw
8-21Draw
8-26Draw
8-13Loss
8-19Draw
8-24Draw
8-30Draw
8-35Draw
46-41Loss
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.

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

White to move: Win. Pip count: White 0, Black 7.

W:WK26,K46:BK5,18,K34,44

MoveResult
26-21Loss
26-17Draw
26-12Loss
26-8Draw
26-3Draw
26-31Loss
26-37Win
26-42Loss
26-48Draw
46-41Loss
46-37Loss
46-32Loss
46-28Loss
46-23Loss
46-19Loss
46-14Loss
46-10Loss

Promotion trap

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

1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950

Black to move: Win. Pip count: White 0, Black 2.

B:WK5,K15:BK7,44,45,K46

MoveResult
7-1Draw
7-2Draw
7-11Draw
7-16Draw
7-12Draw
7-18Draw
7-23Draw
7-29Loss
7-34Win
7-40Draw
46-41Draw
46-37Draw
46-32Draw
46-28Draw
46-23Draw
46-19Draw
46-14Draw
46-10Draw
44-50Win
44-49Win
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.