227

Iuri Akobia
The Problemist, 2009
Win


1.b6!
[1.Rxa4!? b2 2.Rb4 Kc2 3.Rxb2+ Kxb2 4.Kxd2 Kb3 5.Kd3 Kb4= ] 1...cxb6 2.Rd5 [2.Rxa4!? b2 3.Rb4 Kc1 4.Rc4+ Kb1 5.Kxd2 Ka2 6.Ra4+ Kb3= ] 2...a3 [2...b2 3.Rxd2+ Kc1 4.Nf4! a3 5.Ne2+ Kb1 6.Nc3+ Ka1 7.Rd1++- ; 2...Kc1 3.Rxd2 a3 (3...b2 4.Nf4! (4.Ne1!? Kb1 5.Kd3 Ka1 6.Nc2+ Ka2 7.Nb4+ Ka1 8.Nc2+ positional draw) 4...a3 (4...Kb1 5.Ne2 Ka2 6.Rd3 b1N 7.Nc3+ Nxc3 8.Rxc3+- ) 5.Ne2+ Kb1 6.Nc3+ Ka1 7.Rd1++- ) 4.Ne1 ] 3.Rxd2+ [3.Nf4!? Kc1 4.Ne2+ Kb1 5.Rxd2 a2 6.Nc3+ Ka1 7.Nd1 Kb1= ] 3...Kc1 4.Ne1! [4.Nf4!? Kb1 5.Ne2 a2 6.Nc3+ Ka1 7.Na4 Kb1 8.Rb2+ Kc1= ] 4...b2 [4...a2 5.Nd3+ Kb1 6.Rd1++- ] 5.Rg2!! [Thematic try 5.Rf2!? Kb1 6.Kd2 a2 7.Nc2 a1Q 8.Nb4 Qa6! prevents the mate threate Rf1# 9.Nxa6 Ka1= ; Thematic try 5.Re2!? b5 6.Nd3+ Kb1 7.Nb4 Ka1 8.Nc2+ Ka2 9.Nd4 Ka1 10.Nb3+ Ka2 11.Nd4 positional draw 11...Ka1 ; Thematic try 5.Rh2!? Kb1 6.Kd2 a2 7.Nc2 a1Q 8.Nxa1 draws ] 5...Kb1 [5...b1Q 6.Nd3+ Qxd3+ (6...Kd1 7.Rd2# ) 7.Kxd3 Kb1 8.Kc3 a2 9.Rg1# ] 6.Kd2 a2! [main 6...Ka1 7.Nc2+ Ka2 8.Nxa3 Kxa3 9.Kc2+- ] 7.Nc2 [7.Rg1!? a1Q 8.Nc2+ Ka2= ] 7...a1Q 8.Nb4 and wins, because Black can not to prevent Rg1#

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