Study 21

Árpád Rusz
EG
2006
1st Honourable Mention

White wins

1.a7! [1.Qe2+? Ka5! 2.a7 b5! 3.Qe7 Rb4+ 4.Kc2 Rc4+=] 1...Be4 2.a8Q [2.Qxe4? Rxe4 3.a8Q Rb4+! 4.Kc2 Kb6 5.Qd8+ Ka6 6.Kc3 Rb5 7.Kc4 Ra5! (7...Rh5? 8.Qd3! Ka7 9.Qe3+ Ka6 (9...b6 10.Qe7+ Ka6 11.Qd7! Rc5+ 12.Kb4 mutual zugzwang (12.Kb3? Rc1 mutual zugzwang 13.Kb4 Rc5 14.Kb3 Rc1 positional draw) 12...Ra5 13.Qc8+ Ka7 14.Qc7+ Ka6 15.Qb8+-) 10.Qe2! b5+ 11.Kb3! Rh3+ 12.Kb2 Rh4 13.Qe6+ Ka5 14.Qe1++-) 8.Kb4 Rb5+ 9.Ka4 Rc5! (9...Rh5? 10.Qd3+ Ka7 11.Qe3++-) 10.Kb4 Rb5+ 11.Kc4 Ra5 positional draw] 2...Rb4+! [2...Bxc2+ 3.Kxc2 Kb6 4.Qg8! (4.Qa2? Rd6 5.Qb3+ Ka7 6.Qe3+ Ka8=) 4...Rd6 (4...Rb4 5.Qe6+ Ka7 6.Qe3+ Ka6 7.Qa3++-) 5.Qg1++-] 3.Kc1 [3.Ka2? Bxc2 4.Qxb7+ Kc4 5.Qc6+ Kd3=] 3...Bxc2 4.Qxb7+! [4.Kxc2? Kb6=] 4...Ka4 5.Qa7+! [5.Qc6+? Ka3 6.Kxc2 (6.Qxc2 Rc4 7.Qxc4 stalemate) 6...Rc4+ 7.Qxc4 stalemate;

chameleon echo

5.Qa8+? Kb3 6.Qf3+ Ka2! 7.Qc3 (7.Kxc2 Rb2+ 8.Kc1 Rb1+ 9.Kc2 Rb2+ perpetual check) 7...Rb1+ 8.Kxc2 Rc1+! 9.Kxc1 stalemate]

chameleon echo

5...Kb3 6.Qe3+ Ka2! 7.Qc5! +-

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Related study: Study 21a