Shakmaty Bereolos - The Official Chess Site of Peter Bereolos

White: FM Peter Bereolos
Black: GM Alexander Shabalov
2018 Kings Island Open
Round 5 Board 3

1.d4 g6 After about a 5-minute think 2.c4 Bg7 3.e4 d6 4.Nc3 e5 5.dxe5 dxe5 6.Qxd8+ Kxd8 7.f4 Nd7 8.Nf3 c6

9.fxe5 This is not very testing. White should just keep developing with 9.Be2 when White is scoring around 58% in the database compared with only 49% after the text. 9...Nxe5 10.Bf4 f6 11.0-0-0+ Ke7 11...Ke8 I don't really understand the point of putting the king here 12.Be2 Bh6 13.Bxh6 Nxh6 14.Nxe5 fxe5 15.b4 Ke7 16.c5 Be6 17.a3 Rad8 18.Rxd8 Rxd8 19.Rd1 Rf8 20.h3 Rf2 21.Rg1 Kf6 22.Kd2 Kg5 23.Ke3 Rf7 24.Nb1 ½-½ Olafsson-Ljubojevic Reykjavik 1987 12.Be2 Be6 13.Nxe5 fxe5 14.Bg5+ Nf6 15.h3 h5 16.g4 hxg4 17.Bxg4 Rad8 18.Rxd8 Rxd8 19.Bxe6 Kxe6 20.Kc2 Rh8 21.Bxf6With the black pawn fixed on e5, I thought my knight could end up better than his bishop 21...Bxf6 22.Rg1 g5 23.Rg3 Be7 I thought he was just looking to reposition his bishop to a better square, but this move contains another point.

24.Ne2 It is better to not give black the open file with 24.Rf3 24...Rf8 25.Ng1 Rf2+ 26.Kc3 Bc5 27.Nf3 Kf6

28.Nd2 Afterwards we briefly analyzed 28.b4 Be3 29.Nxe5 and he pointed out the move I had missed in my calculations after 29...Bd2+ White has 30.Kd4 This is probably a combination of being the end of a long tournament and the fact that the square d4 is covered twice at the beginning of the variation. So instead of checking with the bishop Black would have to go 29...Kxe5 30.Rxe3 Rxa2 31.Kb3 He thought White should be able to hold this, but it looks like Black can still press for awhile. 28...Bd4+ 29.Kc2 Rh2 Black wins a pawn with 29...Bxb2 but after 30.h4 gxh4 31.Rf3+ Rxf3 32.Nxf3 White should have some chances to hold. 30.b4 Bf2 31.Rf3+ Kg6 32.Nf1 Rg2 33.Kb3 Kh5 34.a4 Kh4 35.c5 Bd4

36.Rf7? An ill-considered move in time trouble White has to try 36.Rd3 to keep the h-pawn defended and allow a route for the knight to get more active via d2. 36...Kxh3 37.Rxb7 Rf2 this is the problem, White loses his knight 38.Rh7+ Kg4 39.Nh2+ Kg3 40.Rxa7 Rxh2 41.Rc7 Kf4 42.Rxc6 Kxe4 43.Rg6 Kd3 44.c6 Rb2+ 45.Ka3 Rc2 46.a5 Rc1 47.Kb3 e4 Black mates immediately with 47...Rb1+ 48.Ka2 Kc2 48.b5 Rb1+ 0-1