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Syzygy endgame tablebases

Black is losing with DTZ 138

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

KRRPvKBB.pgn

Histogram: KRRP winning vs. KBB (log scale)

Longest KRRPvKBB phases

KRRPvKBB statistics

1,239,637,914,664 (84.8%)
313,783,004 (0.0%)
220,049,220,980 (15.1%)
9,948 (0.0%)
2,101,294,088 (0.1%)
KRRPvKBB.json (?)