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Syzygy endgame tablebases

Black is losing with DTZ 118

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

KQRRBvKQ.pgn

Histogram: KQRRB winning (log scale)

Longest KQRRBvKQ phases

KQRRBvKQ statistics

359,305,885,392 (97.2%)
3,265,056 (0.0%)
9,290,416,162 (2.5%)
983,302,366 (0.3%)
KQRRBvKQ.json (?)