Syzygy endgame tablebases

Black is losing with DTZ 112

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

KRRRRvKQ.pgn lichess.org

Histogram: KRRRR winning vs. KQ (log scale)

Longest KRRRRvKQ phases

KRRRRvKQ statistics (unique positions)

White wins:
360,216,604,332 (96.5%)
Frustrated white wins:
417,144 (0.0%)
Draws:
11,893,554,744 (3.2%)
Black wins:
1,090,778,364 (0.3%)
KRRRRvKQ.json (?)