Oreopoulos, Kostas (2375) - Quattrocchi, Gaetano (2379)

Result: 1-0

Site: ICCF

Date: 2011.03.10

[...] 1.♘f3 d5 2.c4 e6 3.d4 ♘f6 4.g3 dxc4 5.♗g2 a6 6.O-O ♘c6 7.e3 ♗d7 8.♕e2 b5 9.b3 cxb3 10.axb3 ♗d6 till here i was repeating my game against Nierovisz 11.♗b2 O-O 12.♖c1 All very normal till here 12...♘d5 Black wants to transfer his Knight to d5 and then to b4. That way the e4 move would be less powerful (12...♘b4 at once is very interesting and needs analysis.) 13.♘c3 ♕e7 14.♘e4 moving to c5 and opening th b2 Bishop. Once again the c5 square is very important. 14...f5?!

14...♖fd8?!15.♘e5!15...♘xe5 16.dxe5 ♗b4 17.♖d1!! aiming at the d4 square, trying to lift to d4 and attack... 17...a5?!

17...♔h8 need to analyse that one) 18.♘f6 gxf6 19.exf6 ♕f8 20.♖d4 again. 20...♗c3 21.♗xc3 ♘xc3 22.♕h5 ♘d5 23.♕h4±

18.♘f6

18.♕h5 ♕f8 19.♘f6 ♘xf6 20.exf6 g6 21.♕g5 ♖a6 22.h4 h6 23.♕g4 ♗c6 24.h5 g5 25.f4 ♖xd1 26.♖xd1 ♗xg2 27.fxg5 ♗h3 28.♕xh3 hxg5 29.♕g4 ♕c5=

18...gxf6 19.exf6 ♘xf6 (19...♕f8 20.♖d4 one of the points of Rd1) 20.♗xa8±

15.♘c5 ♗c8 My opponent is playing computer best moves again and again so its very easy to predict what he will play. Not a very wise way to play. 16.♘e1 ♘cb4 17.♗a3 ♖a7 18.f4 This one was a tough decision. The other option was

18.♘f3 ♘c6 19.e4 fxe4 20.♕xe4 ♘db4 (20...a5 21.♘e5 ♗xe5 22.dxe5 b4 23.♗b2±) 21.♘e5 ♘xe5 22.♗xb4 ♘d7 23.♕e2 ♘f6 24.♖e1 ♕f7 25.f4 (25.♘d3 ♘d5 26.♗c5 ♗xc5 27.dxc5 c6 28.♕d2 ♖a8 29.f4±) 25...♘d5 26.♗a5 c6 27.♖ac1 ♕f6 28.♕d1 ♗xc5 29.♖xc5 ♗d7 30.♖e5± And although this is overhelming for white in OTB games, i just had a feeling that it would be hard to win this one, since after taking the pawn back i would definately make exchanges.

Oreopoulos, Kostas (2355) - Nierobisz, Jim (2353)

Result: 1-0

Site: ICCF

Date: 2010.10.20

[...] 1.d4 d5 2.c4 e6 3.♘f3 ♘f6 4.g3 dxc4 5.♗g2 a6 6.O-O ♘c6 7.e3 ♗d7 8.♕e2 b5 9.b3 I really like this pawn sacrifice. It creates very fast counterplay for white and pressure over the c-file and attacking chances 9...cxb3 10.axb3 ♗e7 (10...♗d6 is the other principal alternative) 11.♘c3 now Ne5 is the threat

11.♘e5 at once is not very promising since 11...♘d5 12.♗b2 ♘xe5 13.dxe5 O-O 14.♖d1 b4 15.♖xa6 ♖xa6 16.♕xa6 ♕b8 and black is fine

11...b4
11...O-O 12.♖d1

12.♗b2 ♘b4 13.♘e5 ♘fd5 14.♘xd5 ♘xd5 15.♕d2 ♗b4 16.♕c2 a5 17.♘d3 ♗e7 18.♘c5⩲

12.♘e5 ♘xe5 13.dxe5 ♘d5 14.♘xd5 exd5 15.♗xd5

15.f4!?15...c6 16.♗b2

16.f5 ♗c5 17.♔h1 a5 18.e4 d4 19.♕h5 f6 20.exf6 ♕xf6 21.♗g5 ♕f7 22.♕h4 a4 23.e5 axb3 24.♖ab1∞

16...a5 17.f5 ♗c5 (17...a4 18.f6 gxf6) 18.♗d4 (18.f6 g6 19.♕f2 ♗b6 20.♕f4 ♔h8 21.e6) 18...♗b6 19.♕d2 a4 20.b4

15...♗e6 16.♗xa8 (16.♗xe6 fxe6 17.♖d1 ♕c8 18.♗d2 c5 19.♗a5 ♕c6=) 16...♕xa8 17.♖d1 c5 18.f4 ♖c8 19.♕c2 g6 20.♕a2 ♗f8 21.♕xa6 ♕f3 22.♖f1 ♕e4 23.♖d1 c4 24.♕xb5 Silin, Viktor A. - Morokova, Larisa V. 0-1, ICCF RUS/C11/qf2

12...♘d5 13.♗d2 ♕b8 14.♘e1 ♘db4 15.♘e4 ♖d8 16.♖dc1⩲ white is doing a party on the c5 square

12.♘a4 ♘b8 opening the diagonal to develop the ligh squared bishop

12...O-O 13.♕c2 ♖b8

13...a5 14.♗b2 ♘d5 15.e4 ♘b6 16.d5 exd5 17.exd5 ♘xd5 18.♘g5 ♗xg5 19.♗xd5±

14.♗b2 h6 15.♖fd1± black can hardly move

13.♖d1 ♗c6 14.♗b2 ♕c8 15.♘c5 O-O although nothing special happened in the last few moves and black simply tried to develop, white has a very easy game and squeezes black. The key is not to exchange pieces in general, but the white squared bishop controls a lot of squares and removing it weakens black's