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Win (6 + 4)


Marcin Banaszek,     Ebur 2003   

1.f7 Sc6+ 2.Ka6 Sb8+ (2...Ra4+ loses quickly: 3.Kb6 Rb4+ 4.Kxc6 Rc4+ 5.Kb6 Rb4+ 6.Rb5 Rxb5+ 7.Kxb5 Qh5+ 8.Kc6+-) 3.Bxb8 Ra4+ 4.Kb6! (not 4.Ra5? Rxa5+ 5.Kxa5 Qh5+! 6.Kb6 Qxd1! 7.Sd6+ and Black is saved after 7...Kd7! 8.f8Q Qd4+ 9.Kb5 Qd5+ 10.Kb4 Qd2+ 11.Kc4 (11.Kc5 Qd5+ 12.Kxd5 stalemate) 11...Qc2+ 12.Kd4 Qd2+ 13.Ke5 Qb2+!=) 4...Rb4+ 5.Rb5! (it would be wrong: 5.Ka5? Qxf5+ 6.Kxb4 Kxb8 (the white King is open to checks from the black Queen) 7.Sd6 (7.Rd8+ Ka7 8.Sd6 Qa5+ 9.Kxa5 stalemate) 7...Qf4+ 8.Kb5 (8.Kc5 Kc7! 9.Se8+ Kc8 10.Rd5 Qf1!=) 8...Kc7 9.Se8+ (9.Kc5 Kd7 10.Sf5+ Ke6 11.f8Q Qe5+ 12.Kb6 Qb2+ 13.Ka5 Qa2+ 14.Kb5 Qe2+ 15.Kb6 Qb2+ =) 9...Kc8 10.Rd5 Qf1+ 11.Kc5 Qf4 12.Kc6 Qa4+ =) 5...Rxb5+ 6.Kxb5 Qf5+ (now after 6...Dh5+ enough is 7.Kc6! Qxd1 8.Sd6+ Kxb8 9.f8Q+) 7.Ka6! (wrong is 7.Kb6? Qf2+ 8.Ka6 Qa2+ draws) 7...Qf2! (The critical position. The white King is in danger of perpetual check. If 7...Qf3 8.Sd6+ Kxb8 9.Rd5! = main line) 8.Sd6+! (other tries are without success: 8.Lc7? Qe2+ 9.Ka5 Qa2+ 10.Kb5 Qb2+ 11.Kc5 Qc2+ 12.Kb6 Qb2+; 8.Rd5? Qa7+ 9.Kb5 Qxb8+; 8.Rc1+? Kxb8 9.Rc7 Qa2+ 10.Kb6 Qe6+ 11.Kc5 Qe5+ 12.Kc6 Qe4+; 8.Rd4? Qxd4 9.f8Q Qa4+ 10.Kb6 Qb3+ 11.Kc6 Qc4+ 12.Kb6 Qb3+ etc. draw) 8...Kxb8 9.Rd2!! The first quiet rook sacrifice. (White has to play exact, without loss of tempo: 9.Kb5? Kc7 10.Se8+ Kc8 11.Rd5 Qf1+; 9.Rd5? Kc7 10.Se8+ Kc8 11.Rf5 Qe2+ =) 9...Qf3 (9...Qf1+ 10.Kb6 Qf6 11.Kc6! Qc3+ 12.Kd7!+-; 9...Qf4 10.Rd4 Qf6 11.Kb5 Qf3 12.Kb6 Qb3+ 13.Kc6 Qa4+ 14.Kd5 +-) 10.Rd5!! The second quiet rook sacrifice. (10.Kb6? Qb3+! 11.Sb5 Qe6+ 12.Rd6 Qe7!=; 10.Rd4? Kc7! 11.Kb5 Qf1+ 12.Kc5 Qf2 13.Kc4 Kc6=) 10...Kc7 (10...Qxd5 11.f8Q+ Kc7 12.Sb5+ Kd7 and wins after Rinck: 13.Qg7+ Kd8 14.Qc7+ Ke8 15.Sd6+ Kf8 16.Qd8+ Kg7 17.Se8+) 11.Sb5+ Kc8 12.Rf5!! The third quiet rook sacrifice. (After 12.Sd6+? Kd7 13.Rf5 Qa3+ =) 12...Qxf5 (12...Qc6+ 13.Ka5 Qa8+ 14.Kb6 Qb7+ 15.Kc5 +-) 13.Sd6+ Kd7 14.Sxf5 wins.
Struggle to promote white pawn with a triple quiet rook sacrifice.