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Syzygy endgame tablebases

Black is losing with DTZ 20

KQBNvKRR.pgn lichess.org

Histogram: KQBN winning vs. KRR (log scale)

Longest KQBNvKRR phases

KQBNvKRR statistics

302,876,467,092 (72.5%)
1,990,929,606 (0.5%)
59,149,248,373 (14.2%)
53,583,105,313 (12.8%)
KQBNvKRR.json (?)