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Syzygy endgame tablebases

White is losing with DTZ 346

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

KRBBvKQB.pgn

Histogram: KRBB losing (log scale)

Longest KRBBvKQB phases

KRBBvKQB statistics

96,872,746,222 (22.8%)
87,590,154,493 (20.6%)
17,828,519,516 (4.2%)
222,764,764,957 (52.4%)
KRBBvKQB.json (?)