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Syzygy endgame tablebases

White is losing with DTZ 216

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

KRRBvKQR.pgn

Histogram: KRRB losing (log scale)

Longest KRRBvKQR phases

KRRBvKQR statistics

104,615,894,607 (26.9%)
10,174,067 (0.0%)
108,845,070,765 (28.0%)
13,737,751 (0.0%)
175,240,920,524 (45.1%)
KRRBvKQR.json (?)