Nº23 Sergey Osintsev

Win

Sergey Osintsev (Russia)

wKf6,Be8,Pe7/bKa6,Ne2,Re1

On the board Rook, Bishop, Knight and Pawn… 1.Bb5+! Kxb5
And the Queen! 2.e8Q+ Kc4 3.Qe4+
3.Qe3? Rf1+!=
3.Qa4+? Kd3!=

3…Kc3 4.Qe3+ Kc2 5.Ke7!! An unexpected move choice! Before attacking, the white King retreats!
5.Ke5? Nc1(g1,d4,f4) 6.Qxe1 Nd3+=
5.Ke6?? Nd4(f4)+–+
5.Kf5? Rf1+!=

5…Kd1 6.Qd3+ Kc1 7.Kf6! Ng1
7…Rf1+ 8.Ke5 Re1 9.Kf5 main line

8.Kf5
loss of time 8.Qc3+ Kd1 9.Qd3+ Kc1

8…Ne2
8…Rd1 9.Qc3+ Kb1 10.Ke4! Ne2 11.Qb3+ Kc1 12.Qc4+ Kd2 13.Qa2+ Ke1 14.Qa5+! Kf1 15.Qf5+ Kg1 16.Qg4+ Kf2 17.Qf3+ Ke1 18.Ke3+-

9.Kg5!
loss of time 9.Kg4 Rg1+

9…Rg1+
9…Ng1 10.Kf4 Ne2+ 11.Kf3 main line

10.Kf6!! The White King’s retreat again! 10…Rf1+11.Ke5 Re1 12.Kf5! Rf1+
13.Ke4 Re1
13…Rf6 14.Qc4+ Kd2 15.Qa2+ Kc3 16.Qa1++-

14.Kf3! Ng1+ 15.Kf2 Rd1 16.Qc3+ Kb1 17.Ke3 Rc1 18.Qb3+ Ka1 19.Kd2+- 19…Rb1 20.Qa3#