Syzygy endgame tablebases

Black is losing with DTZ 120

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


Histogram: KPPP winning vs. KRP (log scale)

Longest KPPPvKRP phases

KPPPvKRP statistics (unique positions)

White wins:
203,617,358,196 (27.7%)
Frustrated white wins:
7,833,306 (0.0%)
50,465,581,572 (6.9%)
Frustrated black wins:
1,154,694 (0.0%)
Black wins:
480,468,552,024 (65.4%)
KPPPvKRP.json (?)