Syzygy endgame tablebases
White to move
Black to move
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White is winning with DTZ 101
Rb1+
Win with DTZ 101
Ra3
Stalemate
Rb2
Stalemate
Rb4
Stalemate
Rbb5
Stalemate
Rbb6
Stalemate
Rb7
Stalemate
Rb8
Stalemate
Rc3
Stalemate
Rd3
Stalemate
Re3
Stalemate
Rf3
Stalemate
Rbg3
Stalemate
Rbh3
Stalemate
Kc2
Stalemate
Kd1
Stalemate
Kd2
Stalemate
Ne2
Stalemate
Nf3
Stalemate
Nh3
Stalemate
Ra5
Stalemate
Rgb5
Stalemate
Rc5
Stalemate
Rd5
Stalemate
Re5
Stalemate
Rf5
Stalemate
Rg2
Stalemate
Rgg3
Stalemate
Rg4
Stalemate
Rgg6
Stalemate
Rg7
Stalemate
Rg8
Stalemate
Rgh5
Stalemate
Ra6
Stalemate
Rhb6
Stalemate
Rc6
Stalemate
Rd6
Stalemate
Re6
Stalemate
Rf6
Stalemate
Rhg6
Stalemate
Rh1
Stalemate
Rh2
Stalemate
Rhh3
Stalemate
Rh4
Stalemate
Rhh5
Stalemate
Rh7
Stalemate
Rh8
Stalemate
This is a cursed win.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KRRRNvKP.pgn
lichess.org
Histogram: KRRRN winning vs. KP (log scale)
⋮
Longest KRRRNvKP phases
KRRRN winning with DTZ 8
KRRRN winning with DTZ 102 (frustrated)
KRRRN losing with DTZ 3
KRRRNvKP statistics (unique positions)
White wins:
1,507,656,278,112 (99.8%)
Frustrated white wins:
1,311,324 (0.0%)
Draws:
2,804,814,552 (0.2%)
Black wins:
157,280,004 (0.0%)
KRRRNvKP.json
(?)