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Syzygy endgame tablebases

Black is losing with DTZ 46

Rc1+ Loss with DTZ 45 Rb2+ Loss with DTZ 21 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 Rxd2 DTM 3 Zeroing

KQRRvKR.pgn lichess.org

Histogram: KQRR winning vs. KR (log scale)

Longest KQRRvKR phases

KQRRvKR statistics

7,313,533,220 (99.8%)

6,807,080 (0.1%)

4,485,396 (0.1%)

KQRRvKR.json (?)