1. Ra8 Ba5 2. Rxa5 Qxa5 3. Ra8 Ra6 4. Rxa6 Qxa6 5. b8=R! Phoenix 5. b8=Q $2 Qb5+ $1 6. Qxb5 stalemate 5... Qa4 6. d8=R! double R Phoenix 6. d8=Q? Qd1+! 7. Qxd1 stalemate 6... Qc6 7. Ra8+ Kb3 8. Rdb8+ Kxc3 9. Ra3+ Kd2 10. Rb2+ Kd1 11. Ra1 c3 12. Ka2#
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Related study: Study 44
1. Bc4! Rff2! 1... Rxc5 2. g8=Q +- 2. Rxh4! Rxh4 2... Rc2+ 3. Kd1 Rhd2+ 4. Ke1 Rg2 (4... Kb2 5. Bxa2 Re2+ 6. Kf1 Rf2+ 7. Kg1 Rg2+ 8. Kh1 +-) 5. Bf1! Rxc5 6. Bxg2 Kb2 7. Ra4 +- 3. Bb3
First main line:
3...Rhh2! 4. Ra5!!
4. g8=Q? Rb2 5. Qg7 Rh1+ (5... Rhc2+? 6. Kd1 Rxc5 7. Bxa2! Kxa2 8. Qg8+ +-) 6. Bd1 Rhh2 positional draw 7. Bb3 (7. Rc2 Rhxc2+ 8. Bxc2 stalemate with pinned rook) 7... Rh1+ 8. Bd1 Rhh2 positional
draw
4... Rh1+! 5. Bd1 Rh4! 6. Rxa2+! R sacrifice 6...Rxa2
7. c8=R! Phoenix 7. c8=Q? Rc4+! 8. Qxc4 Rc2+! 9. Kxc2 stalemate 7... Rh3! 7... Rb4 8. Bc2 +- 8. g8=R! +- Double R Phoenix 8. g8=Q? Rc3+! 9. Rxc3 Rc2+! 10. Kxc2 stalemate
Second main line:
3... Rb2
3... Rh1+ 4. Bd1 Rh4! 5. Rc2! (5. g8=Q? Rc4+! 6. Rxc4 Rc2+! 7.Kxc2 stalemate) 5... Rc4 6. g8=Q Rcxc2+ 7. Bxc2 Rxc2+ 8. Kd1 Rxc7 9. Qh8+ Kb1 10. Qb8+ +-
4. Ra5! Rh1+ 5.Bd1 Rb1+
5... Rhh2 6. Rxa2+! +-
6. Kc2 Rh2+
6... Rb2+ 7. Kc3 Rxd1 8. g8=Q +-
7. Kc3 Rg2!
7... Rc1+ 8. Kb4 Rg2 9. Rc5 Rxc5 10. Kxc5 Kb1 11. c8=Q a1=Q 12. Qf5+ Kc1 13. Qf4+ Kb1 14. Qe4+ +-
8. Rc5 Rg3+ 9. Kd2 Rb2+ 10. Bc2 Rxg7 11. c8=Q Rg2+ 12. Kd3 Rgxc2
1. Kh6 Ne4! 2. Qxe4 Nf5+ 3. Qxf5! 3. Kg5? Qxg3+ 4. Qg4 Qe3+ 5. Qf4 Qg1+ = 3... exf5 4. Nxf7! 4. Ndc6? Qf4+! 5. gxf4 stalemate 4... Kxf7 5.Nc6! Qxg3 5... Qxd7 6. Ne5+ +- 6. Ne5+! Qxe5 7. d8=N+! Kxf6 8. g8=N# double N Phoenix
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