| Probability | Rule |
|---|---|
| 100% | Stockfish best available move (depth 1, blunder ) |
| 100% | Can't checkmate if your queen <0 away (999 turns) |
Rule set difficulty: 100
This rule set was created by Alexey Arkhipenko at 2021-02-17 20:00:47 and changed at 2021-04-03 02:08:48