1.e8Q [1.g8Q? Rd2+ 2.Ke4 Bxe7=] 1...Bf6+ 2.Kxd5 Bxg7 3.Qg8! [3.Qf7? Bb2 4.Kc5+ (4.Kc6+ Kb1! (4...Ka1? 5.Qa7+ Kb1 6.Qg1+=) 5.Qg6+ Rc2+=) 4...Ka1! (4...Kb1? 5.Qg6+ Rc2+ 6.Kb4+-) 5.Qa7+ Kb1=] 3...Rg2
4.Ke4+ Kb1 [4...Kb2 5.Kf3 Rg5 6.Qb8+ Kc2 7.Qh2+ Kb3 8.Qf4 Rc5 9.Qf7++-] 5.Qh7! Rg1 [5...Ka2 6.Kf3 Rg1 7.Qh2++-]
6.Kf4+!! [6.Kf3+? Ka1!! mutual zugzwang 7.Kf2 (7.Qc2 Bb2=) 7...Bd4+=] 6...Ka1 [6...Kc1 7.Qd3 Bh6+ (7...Re1 8.Qc4++-) 8.Kf3+-] 7.Kf3! Bd4 [7...Rf1+ 8.Kg2 Rf7 9.Qd3! Ra7 10.Qf1++-] 8.Qe7! [8.Qd7? Rf1+ 9.Ke2 Rf2+ 10.Kd3 Bb6! 11.Qa4+ Kb1 12.Qb3+ (12.Qb4+ Rb2=) 12...Rb2 13.Qd1+ Ka2 14.Qa4+ Kb1 15.Kc3 Bf2! 16.Qd1+ Ka2 positional draw] 8...Rf1+ 9.Ke2 Rf2+ 10.Kd3 [10.Kd1? Ra2!=] 10...Bb6 11.Qe1+ Kb2 [11...Ka2 12.Qe6++-] 12.Qb4+ +-
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Related study: Study 13a
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