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Syzygy endgame tablebases

White is winning with DTZ 297

Rhh5 Win with DTZ 296

a8=B Draw a8=Q Draw Ra5+ Draw Rcc1 Draw Rc2+ Draw Rc7 Draw Rg5 Draw Rch5 Draw Ra1+ Draw Rb1 Draw Rhc1 Draw Rd1 Draw Re1 Draw Rf1 Draw Rg1 Draw Rh2 Draw Rh4 Draw Kh5 Draw Kh7 Draw

Rb5 Loss with DTZ 1 Rc3 Loss with DTZ 1 Rc4 Loss with DTZ 1 Rc6 Loss with DTZ 1 Rc8 Loss with DTZ 1 Rd5 Loss with DTZ 1 Re5 Loss with DTZ 1 Rf5 Loss with DTZ 1 Rh3 Loss with DTZ 1 a8=N Zeroing a8=R Zeroing

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

Histogram: KRRPP winning vs. KQ (log scale)

Longest KRRPPvKQ phases

KRRPPvKQ statistics

597,812,357,960 (58.6%)

3,945,601,468 (0.4%)

276,014,754,092 (27.1%)

93,088,292 (0.0%)

142,190,969,460 (13.9%)

KRRPPvKQ.json (?)