Syzygy endgame tablebases

Black is losing with DTZ 131

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

KPPPvKRR.pgn lichess.org

Histogram: KPPP winning vs. KRR (log scale)

Longest KPPPvKRR phases

KPPPvKRR statistics (unique positions)

White wins:
71,640,466,716 (7.9%)
Frustrated white wins:
4,892,952 (0.0%)
Draws:
84,896,833,512 (9.3%)
Frustrated black wins:
24 (0.0%)
Black wins:
755,843,747,556 (82.8%)
KPPPvKRR.json (?)

KPPPvKRR dependencies

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

KQPPvKRR · KRPPvKRR · KPPPvKR · KBPPvKRR · KNPPvKRR · KRRvKPP

KPPPvKRR.txt KPPPvKRR.dot