Review our analysis using Olga here
1) mate-in-9 (25 ply) 23.fxe5+ Ke7 26.Qg5+ f6 27.Rxf6 Qa1+ 28.Kd2 Qd1+ 29.Kxd1 Bxc2+ 30.Kc1 Rg8 31.Re6+ Kd7 32.Qe7+ Kc8 33.Rc4#
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6 second analysis by
Stockfish 11
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