Syzygy endgame tablebases

Black is losing with DTZ 4

KRRRBvKR.pgn lichess.org

Histogram: KRRRB winning vs. KR (log scale)

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Longest KRRRBvKR phases

KRRRBvKR statistics (unique positions)

White wins:
437,508,060,186 (99.8%)
Frustrated white wins:
33,522 (0.0%)
Draws:
638,156,682 (0.1%)
Black wins:
267,261,108 (0.1%)
KRRRBvKR.json (?)

KRRRBvKR dependencies

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

KRRBvKR · KRRRBvK · KRRRvKR

KRRRBvKR.txt KRRRBvKR.dot