B00 Queen's Fianchetto Defence, Nimzowitsch Defence (1.e4 b6 2.d4 Bb7 3.Nc3 g6 4.Nf3 Bg7 5.Bc4)

This is a previously shared game with a more detailed commentary. The first position of interest came already after my 6th move O-O. It can be seen in the diagram below. The move that my opponent chose to play was 6...Qd7. The move does not really make much sense to me. The queen does not really have good squares to which it could go from d7 and it might make the development of the knight from b8 more difficult. The game continued with the moves 7.Re1 h6 8.Bf4 and then my opponent blundered with the move 8...a6. The move a6 is a waste of time, even though it controls b5, it does not answer to the requirements of the position. It would have been a better idea to move the e-pawn from e7 to e6 and maybe prepare castling to the kingside.

A better option for Ahmedegyptair was 6...e6.

I responded correctly with 9.e5! Since I had mostly developed my pieces and Ahmedegyptair's king was still in the center, it seemed logical to try and open the center. After my 9th move I should have had a winning advantage, according to Stockfish 8 64 POPCNT. All went well for me, until we reached the next diagram position. I had two options, either to take the bishop with the queen or with the pawn and I chose poorly. One of the choices kept the winning advantage and the other lost almost all of the advantage, so that the position was only slightly better for me.

In order to keep my winning advantage, I should have played 11.gxf3.

The next important moment in the game happened when we reached the position seen in the diagram below. Ahmedegyptair moved the knight from c6 to b4, which was a horrible mistake and the start of the downfall for my opponent, from which he was not able to make a comeback from.

The correct square for the knight was e7.

This paragraph was typed when I originally shared this game, therefore the information in there is out of date. This game was played at Chess.com in a team match called OCD BIG XMAS MATCH. This is a 76 board match between Obsessive Chess Disorder!! and ♞KNIGHTS of the REALM♞. I am playing board 15 in this match for the Obsessive Chess Disorder!! and we are currently leading the match 69,5 - 57,5. So far the match is going well for us, I hope it continues to do so in the remaining games aswell. This match started December 6th 2014 and because of the one simultaneous game setting in this match, my second game against Ahmedegyptair started only after this ended yesterday.

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Move	N	Result	Elo

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1.e4 b6 Owen Defense: General 2.d4 Bb7 3.Nc3 3.Bd3 f5 4.exf5 Bxg2 5.Qh5+ g6 Owen Defense: Matovinsky Gambit 3.Bg5 Owen Defense: Naselwaus Gambit 3.f3 e5 Owen Defense: Wind Gambit 3.Nf3 Owen Defense: Smith Gambit 3...g6 4.Nf3 Bg7 5.Bc4 B00 Queen's Fianchetto Defence, Nimzowitsch Defense d6 6.0-0 Black has a cramped position 6.Be3 e6 6...Nd7 7.Qd2 c5 8.0-0 a6 9.a4 Qc7 10.d5 Ngf6 11.h3 Rd8 12.Bh6 0-0 13.Bxg7 Kxg7 14.b3 Bc8 15.Rfe1 Ng8 16.Qe2 Nb8 17.Rad1 f6 18.Nd2 Nh6 19.f4 Nf7 20.Nf3 Rfe8 21.e5 Dzamastagic,E (1490)-Mihelj,E (1805) Nova Gorica 2015 1/2-1/2 7.Qd2 h6 8.0-0-0 Nd7 9.d5 e5 10.Ne1 Qe7 11.Nd3 Ngf6 12.f3 a6 13.g4 h5 14.g5 Nh7 15.Rhg1 Nhf8 16.Qf2 Nc5 17.Nb4 b5 18.Bf1 Nfd7 19.Nc6 Bxc6 20.dxc6 Nb6 Schubert,G (2142)-Gal,P (2146) Hungary 2007 1-0 (40) 6...Qd7N 6...Nd7 7.Bxf7+ Kxf7 8.Ng5+ Ke8 9.Ne6 Qc8 10.Nxg7+ Kf7 11.Nh5 gxh5 12.Qxh5+ Kg7 13.Qg5+ Kf7 14.e5 Nf8 15.Re1 Ng6 16.e6+ Ke8 17.d5 Nf6 18.Qf5 Nh4 19.Qd3 Rg8 20.g3 c6 21.Ne4 Nikolaeva,M (2179)-Dupak,O Kiev 2000 0-1 6...e6 7.Bg5 7.d5 e5 8.Bg5 f6 9.Be3 Ba6 10.Qd3 Bxc4 11.Qxc4 a6 12.Ne1 Ne7 13.a4 0-0 14.Nd3 Nd7 15.b4 Kh8 16.Ne2 f5 17.f3 Bf6 18.Nf2 Ng8 19.Nh3 f4 20.Bd2 Rf7 21.a5 b5 Valiente,E-Nunez Patiao,R Cartagena 2001 0-1 (36) 7...Ne7 8.Qe2 Nd7 9.Rad1 h6 10.Bf4 0-0 11.Rfe1 Nf6 12.Qe3 Kh7 13.Bd3 Nh5 14.e5 Nf5 15.Bxf5 gxf5 16.Ne2 Rg8 17.Ng3 Nxg3 18.hxg3 Bxf3 19.Qxf3 d5 20.Qh5 Qe7 21.Re3 Weber,B (1947)-Hamm,G (2139) Dresden 2014 1/2-1/2 (59) 6...e6 7.d5 e5 8.a4 7.Re1 h6 8.Bf4 a6? 8...e6!?± 9.e5+- Qf5?? a blunder in a bad position 9...dxe5 10.Nxe5 Bxe5 11.Bxe5 Rh7+- 10.Bg3 10.Nh4 finishes off the opponent Qxf4 11.g3 Qg5+- 10...Bxf3 11.Qxf3?? gives the opponent counterplay 11.gxf3 and White has prevailed dxe5 12.dxe5+- 11...Qxf3 12.gxf3 dxe5 13.dxe5 White has the pair of bishops Weaker is 13.Bxe5 Bxe5 14.Rxe5 c6= 13...e6 Black has a cramped position. 14.Rad1 Ne7 Black is behind in development. 15.Rd2 15.f4 Nd7= 15...Nbc6 16.f4 b5 Black threatens to win material: b5xc4 17.Bf1 0-0 18.Rd7 Ra7 18...Rac8 19.a4 19.Red1 19.Bg2 Re8± 19...Nf5 A sound move 19...b4 20.Na4 Nd5 21.Bc4 20.Bg2 White threatens to win material: Bg2xc6 Nb4?? 20...Nce7 is a viable option 21.R1d2 21.Be4!? makes it even easier for White Re8 22.a3 Nd5 23.Nxd5 exd5 24.Bxf5 gxf5+- 21...h5 22.h4 Nd5 22...Re8 23.a3 Nd5 24.Nxd5 exd5 25.Bxd5+- 23.Nxd5 exd5 24.Bxd5 a5 25.Bg2 25.c3 and White can already relax Bh6+- 25...b4? 25...Re8 26.Bf1+- 26.R2d5 26.Bd5!? seems even better a4+- 26...a4 26...Rc8 27.Rc5 Bf8 28.Rc6+- 27.Rb5 b3? 27...c6 28.Bxc6 Rxd7 29.Bxd7 a3 30.Rxb4 Rd8 31.Bxf5 Bf8+- 28.axb3 axb3 29.Rxb3 Ra1+ 30.Kh2 c5 30...Ra4 is no salvation 31.Rb7 Rc4 32.Rdxc7 Rxc7 33.Rxc7+- 31.Rc7 31.Bd5 makes it even easier for White Ra4 32.c3 Nh6+- 31...Nd4 31...Ra4 doesn't improve anything 32.Bd5 Rb4 33.Rxc5 Rxb3 34.Bxb3+- ≤34.cxb3 Nd4+- 32.Rbb7 Nxc2 32...Ne6 the last chance for counterplay 33.Rd7 c4+- 33.Rxc5 33.Bd5 makes sure everything is clear Nd4 34.Bxf7+ Rxf7 35.Rxf7 Ne6+- 33...Nd4 34.Bd5 Re1 34...Ra6 a last effort to resist the inevitable 35.b4 Nf5+- 35.Rcc7 Nf5 36.Rxf7 36.Bxf7+ ends the debate Rxf7 37.Rxf7 Rd1+- 36...Rxf7 37.Rxf7 37.Bxf7+!? might be the shorter path Kh7 38.Rb6 Ne7+- 37...Re2 37...Kh8 hoping against hope 38.Rb7 Rd1+- 38.Rxf5+ 38.Rxf5+ Kh7 39.Rf7 Kg8 40.e6 Bxb2 41.e7 Ba3 42.Rf8+ Kg7 43.e8Q Rxe8 44.Rxe8 Bb2 45.Rb8 Ba1 46.Rb7+ Kh8 47.Be4 Bd4 48.Bxg6 Ba1 49.f5 Bc3 50.Bd6 Ba1 51.Re7 Bb2 52.Re8+ Kg7 53.Bf8+ Kf6 54.Re6# 1–0

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White	EloW	Black	EloB	Res

Vierjoki,T

1852

Ahmedegyptair

1933

1–0

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