After an 8 years break, I am back to my blog! First I would like to present a new version of the most complex study I have composed. I order to win, white needs 57 precise moves along the main line!
1.Rxa3+! 1.Qxh7? Rg5 2.Rxa3+ Qxa3+ 3.Kb7 Rb5+=; 1.f8Q? Qa5+ 2.Kb7 Qb5+ 3.Ka7 Qa5+ perpetual check 1...Qxa3+ 1...Kxa3 2.Qxh7 Rg5 3.Qd3++– 2.Kb8! 2.Kb7? Rgxg7 3.Rxa3+ Kxa3–+ 2...Qxa8+ 3.Kxa8 Rgxg7! Capturing the Queen leads to two echo positions: 3...Rxh8+ 4.Bxh8 h2 5.f8Q h1Q 6.Qf7+ Kb1 7.Qb3+ Kc1 8.Qb2+ Kd2 9.Qc3+ Ke2 (9...Kd1 10.Qa1++– echo position 1)
Try1: 4.f8Q? Ra7+ 5.Kb8 Rab7+! (5...Rhb7+? 6.Kc8 Rc7+ 7.Kd8 Rd7+ 8.Ke8 Re7+ 9.Qxe7+–) 6.Kc8 Rbc7+ 7.Kd8 Rcd7+ 8.Ke8 Rde7+ 9.Qxe7 Rxh8+ 10.Kd7 h2 11.Qf7+ Kb1 12.Qb3+ Kc1= (12...Ka1? 13.Qc3++–);
Try2: 4.Qxg7? Rxg7 5.f8Q h2! (5...Rg3? 6.Qh6! Kb2 (6...f2 7.Qe6+ Kb1 8.Qb6++–) 7.Qd2!+–) 6.Qxf3
Main: 4.Qxh7! It is a paradox that white captures the rook only after black managed to protect it.4...Rxh7