1. Rh2 1. Rd2? Be7! (1... Bc7? 2. Rd5+ Kg4 3. Bg7 Bf4 4. Kf1! Kf3 5. Rd3+ Ke4 6. Rd4+ Kf3 7. Rxf4+! R sacrifice Kxf4 8. h6 Ke4 9. h7 Ra8 10. h8=Q Rxh8 11. Bxh8 Kd5 12. Bd4! B sacrifice 12... Kxd4 13. c6 +-) 2. Rd5+ Kg4 (2... Kh4? 3. Bg7 Bg5 4. h6 Bxh6 5. Bxh6 Rxh6 6. Kf2 Re6 7. Kf3 +-) 3. Bg7 Bg5 4. Rxg5+ R sacrifice (4. h6 Bxh6 5. Bxh6 Rxh6 =) 4... Kxg5 5. h6 Kg6 = 1... Kh6 1... Rh6 2. Bc1+ +-; 1... Bc7 2. Rh1 Ra2 3. Bd4 Kh6 4. Be3+ +- 2. Bc1+ Bg5 3. Bxg5+ Kxg5
4. Rh1!! 4. h6? Ra1+! 5. Kg2 Ra2+ 6. Kg3 Ra3+ 7. Kf2 Ra2+ 8. Kg3 Ra3+ perpetual check - chameleon echo; 4. Rc2? Kxh5 5. c6 Ra8 6. c7 Rc8 = 4... Ra2 4... Ra1+ 5. Kg2! +- (5. Kh2? Ra5 6. Rc1 Kxh5 7. c6 Ra8 8. c7 Rc8 =) 5. h6 5. c6? Kh6 = 5... Kg4 6. c6! 6. h7? Ra1+ 7. Kg2 Ra2+ 8. Kf1 Ra1+ 9. Kg2 Ra2+ perpetual check - chameleon echo 6... Kg3 7. Kf1 Ra1+ 8. Ke2 Rxh1 9. c7 Rc1 10. h7 +-
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