Syzygy endgame tablebases

White is winning with DTZ 1

Nxc1 Zeroing Kxc1 Zeroing Rxc1 Zeroing Rf1+ Win with DTZ 2 Kc2 Win with DTZ 10 Nb4 Win with DTZ 12 Nc3 Win with DTZ 14 Kb2 Win with DTZ 14

Rd1 Draw Re1 Draw Rg2 Draw Rg3 Draw Rg4 Draw Rg5 Draw Rg6 Draw Rg7 Draw Rg8+ Draw Rh1 Draw

KRRNvKRN.pgn lichess.org

Histogram: KRRN winning vs. KRN (log scale)

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Longest KRRNvKRN phases

KRRNvKRN statistics (unique positions)

White wins:
350,072,532,162 (74.8%)

Frustrated white wins:
482,410 (0.0%)

Draws:
115,904,109,986 (24.8%)

Black wins:
1,779,938,834 (0.4%)

KRRNvKRN.json (?)