Syzygy endgame tablebases

Black is losing DTZ 104

Rh7+ Loss with DTZ 103

Rb2 Loss with DTZ 3 Rb3 Loss with DTZ 3 Rb4 Loss with DTZ 3 Rb6 Loss with DTZ 3 Rc7 Loss with DTZ 3 Rd7 Loss with DTZ 3 Re7 Loss with DTZ 3 Rg7 Loss with DTZ 3 Rb1 Loss with DTZ 1 Rb5 Loss with DTZ 1 Rb8+ Loss with DTZ 1 Rf7 Loss with DTZ 1 Rxa7 Zeroing

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

KRRNPvKR.pgn lichess.org

Histogram: KRRNP winning vs. KR (log scale)

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Longest KRRNPvKR phases

KRRNPvKR statistics (unique positions)

White wins:
1,441,837,191,640 (98.8%)

Frustrated white wins:
78,442 (0.0%)

Draws:
15,372,545,716 (1.1%)

Black wins:
1,843,089,266 (0.1%)

KRRNPvKR.json (?)

KRRNPvKR dependencies

To probe all KRRNPvKR positions, these tables and their transitive dependencies are also required:

KQRRNvKR · KRRRNvKR · KRNPvKR · KRRNPvK · KRRBNvKR · KRRNNvKR · KRRPvKR · KRRNvKR

KRRNPvKR.txt KRRNPvKR.dot