Syzygy endgame tablebases

White is winning DTZ 109

Kc3+ Win with DTZ 107

Nxg4 Draw Kc4+ Draw Kd2+ Draw Kd4+ Draw Ke3+ Draw Ba8 Draw Bb7 Draw Bc6 Draw Bd5 Draw Bf3 Draw Bf5 Draw Bg2 Draw Bg6 Draw Bh1 Draw Bh7 Draw Nc4 Draw Nc6 Draw Nd7 Draw Nf3 Draw Nf7 Draw Ng6 Draw

This is a cursed win. Mate can be forced, but a draw can be achieved under the fifty-move rule.

KBNvKBN.pgn lichess.org

Histogram: KBN winning vs. KBN (log scale)

⋮

Longest KBNvKBN phases

KBNvKBN statistics (unique positions)

White wins:
46,191,695 (0.5%)

Frustrated white wins:
1,109,250 (0.0%)

Draws:
9,595,365,026 (99.0%)

Frustrated black wins:
1,109,250 (0.0%)

Black wins:
46,191,695 (0.5%)

KBNvKBN.json (?)

KBNvKBN dependencies

To probe all KBNvKBN positions, these tables and their transitive dependencies are also required:

KBNvKN · KBNvKB

KBNvKBN.txt KBNvKBN.dot