Syzygy endgame tablebases

White is losing with DTZ 120

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

KBBNvKQQ.pgn lichess.org

Histogram: KBBN losing vs. KQQ (log scale)

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Longest KBBNvKQQ phases

KBBNvKQQ statistics (unique positions)

White wins:
2,022,742,486 (0.5%)
Draws:
17,569,338,324 (4.3%)
Frustrated black wins:
2,812,728,164 (0.7%)
Black wins:
382,348,292,970 (94.5%)
KBBNvKQQ.json (?)

KBBNvKQQ dependencies

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

KBBNvKQ · KQQvKBN · KQQvKBB

KBBNvKQQ.txt KBBNvKQQ.dot