Syzygy endgame tablebases
White to move
Black to move
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Black is losing with DTZ 120
Rb5
Loss with DTZ 119
Rc5
Loss with DTZ 3
Ka3+
Loss with DTZ 1
Ka4+
Loss with DTZ 1
Kb3
Loss with DTZ 1
Kc3+
Loss with DTZ 1
Kc4+
Loss with DTZ 1
Ra7
Loss with DTZ 1
Rbb6
Loss with DTZ 1
Rb8
Loss with DTZ 1
Rbc7
Loss with DTZ 1
Rd7
Loss with DTZ 1
Re7
Loss with DTZ 1
Rf7
Loss with DTZ 1
Rg7
Loss with DTZ 1
Rh7
Loss with DTZ 1
Ra6
Loss with DTZ 1
Rcb6
Loss with DTZ 1
Rc1+
Loss with DTZ 1
Rc2
Loss with DTZ 1
Rc3
Loss with DTZ 1
Rc4
Loss with DTZ 1
Rcc7
Loss with DTZ 1
Rc8
Loss with DTZ 1
Rd6
Loss with DTZ 1
Re6
Loss with DTZ 1
Rf6
Loss with DTZ 1
Rg6
Loss with DTZ 1
Rh6
Loss with DTZ 1
This is a blessed loss.
Mate can be forced, but a draw can be achieved under the fifty-move rule.
KQBBvKRR.pgn
Histogram: KQBB winning (log scale)
⋮
Longest KQBBvKRR phases
KQBB winning with DTZ 68
KQBB winning with DTZ 121 (frustrated)
KQBB losing with DTZ 23
KQBBvKRR statistics
303,675,036,672 (74.9%)
24,694,212 (0.0%)
57,839,649,134 (14.3%)
43,745,429,172 (10.8%)
KQBBvKRR.json
(?)
