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Syzygy endgame tablebases

Black is losing with DTZ 54

Rc1+ Loss with DTZ 53 Rb2+ Loss with DTZ 13 Ra2 Loss with DTZ 1 Rc3 Loss with DTZ 1 Rc4 Loss with DTZ 1 Rc5 Loss with DTZ 1 Rc6 Loss with DTZ 1 Rc7 Loss with DTZ 1 Rc8 Loss with DTZ 1 Rd2 Loss with DTZ 1 Re2 Loss with DTZ 1 Rf2 Loss with DTZ 1 Rg2 Loss with DTZ 1 Rxh2 Zeroing

Histogram: KQQBB winning (log scale)

Longest KQQBBvKR phases

KQQBBvKR statistics

400,950,183,432 (99.9%)

327,990,556 (0.1%)

106,714,472 (0.0%)

KQQBBvKR.json (?)