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Syzygy endgame tablebases

Black is losing with DTZ 20

KRRRvKBB.pgn

Histogram: KRRR winning (log scale)

Longest KRRRvKBB phases

KRRRvKBB statistics

436,468,843,506 (98.7%)
5,668,623,990 (1.3%)
73,872,792 (0.0%)
KRRRvKBB.json (?)