(1) oswald137 (1495) - Moldovan,John (1888) [C02]
STC Championship sf WCL (6), 12.08.2009
[Moldovan & Deep Rybka 3]

G/60+30 C02 French Defense Advance Variation

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Qb6
[In the previous round, jps7 played 4...Bd7 & won but my move has dual-purpose. It prevents Bb5 & attacks c6.]

5.Nf3 Nc6 6.a3
Something we have yet to cover. [For 6.Be2 ; 6.Bd3 ; 6.Qb3 ; & 6.Be3 see my PGN/CBV archives & 2009 KCC Championship zip.]

6...c4 7.Nbd2
/\ of sacking the ls B on c4, if Black goes astray. [7.g3 is the main alternative. We'll look at that in a future a3 game, when I have more time. Let's get back to the action.]

[7...Bd7 8.g3 Nge7? is refuted by 9.Bxc4!+/- Illescas - Yusupov (2655!) : Linares 1992 /\9...dxc4?? 10.Nxc4 ]

8.Be2 Bd7 9.0-0 Ne7 10.Rb1

/\ b3 or b4.

This re-deployment safeguards the Q, puts indirect pressure on c3 &, thus, discourages the aforementioned break. [My engines, however, seem to be more concerned with getting the ...Bf8 out ASAP. They prefer 10...Ng6 ; & 10...Nf5 ]

Falling into the trap. [>=11.Ng5= ; 11.Re1= ; 11.Qe1= ]

11...cxb3 12.Nxb3
[>=12.Bd3N Ba4 (12...Qxc3 13.Nxb3 Ba4 14.Qe2 Nxb3 15.Bb5+ Bxb5 16.Qxb5+ Qc6 17.Qxb3 ) 13.Qe2 a6 14.Bb2 ]

12...Ba4 13.Bd3!?N
[>=13.Nfd2 Dreesbach - Bluebaum : Moehnesee 2005 13...Qxc3 14.Bb2=/+ but White values the bP & decides to instead sac an Exchange.; 13.Bd2? Nxb3 14.Rxb3 guest6633 - Moldovan : jeu.echecs.com 2007 14...Nc6-/+ ]

13...Nxb3 14.Rxb3 Bxb3 15.Qxb3 Nc6 16.Bb5?
This diagonal pin won't accomplish much. My N is over-protected & White has no vertical support. [>=16.c4 dxc4 17.Bxc4 Be7 18.d5 exd5 19.Bxd5 0-0 20.e6 fxe6 21.Be4=/+ ]

16...Be7 17.Bg5 h6
Castling isn't urgent. Let's tick the cleric & take a future Ng5 out of the mix.

18.Bxe7 Qxe7

[This may not be the best move (I'm winning after it) but it's a good, active try & other thematic continuations, such as putting pressure on the b-file & attacking the base of my P-chain, are little or no better : 19.Rb1 0-0 20.a4 Rfc8-+ ; & 19.Nd2 0-0 20.f4 Rac8 21.Bd3 Na5-+ ]

19...dxc4-+ 20.Qxc4 0-0
[This could have been delayed, in favor of 20...Rc8 but I wanted to retain the ...Rfc8 option & c6 is tactically protected.]

[>=21.Qd3 Rac8 22.Ba4 Rfd8 23.Bc2 g6 24.Qe3 Kg7 25.Be4 ; 21.Bxc6 Rac8 22.d5 exd5 23.Qxd5 Rxc6 ]

Threatening 22...Nxe5.

22.Qd3 a6 23.Bxc6
[23.Bc4 Qb4 24.Ba2 Rfd8 ]

23...Rxc6 24.h3 Rfc8 25.d5 exd5 26.Qxd5

[>=26...Rc1 & a trade of Rs.]

27.Qd7 R6c7 28.Qg4
[>=28.Qd2 ]

28...Qc4 29.Nd4
[>=29.Qf5 ]

[>=29...h5! 30.Qh4[] (30.Qe4 /Qf4 30...Rd8 31.Rd1 Rcd7 etc.) 30...Rd7 forcing a Q-swap or winning the steed.]

White has to play for a swindle. [30.Nf3 Qxg4 31.hxg4 Rc4 ; & 30.Nf5 Qxg4 31.hxg4 Rd2 are -+.]

30...Rcd7 31.e6 Rxd4 32.Rxd4

[>=32...Qxd4 33.exf7+ Kf8 & White can resign.]

Uh-Oh. Goodbye extra R. Hello P-up Q ending.

[>=33...Rxg4 34.e8Q+ Kh7 35.hxg4 b5 making a passed P.]

34.Kh2 Rxg4?
Or "??", if we want to criticize the overall effect. [34...Qc7+ 35.g3 Qxe7 36.Qxd4 b5 would still have won.]

35.e8Q+ Kh7 36.hxg4 Qf4+ 37.Kh3
[>=37.Kg1 Qxg4 38.Qxf7 ]

[>=37...b6 38.Qc8 b5 with some chances. After the f2 for b7 trade, White holds rather easily.]

38.Qe4+ Kg8 39.Qe8+ Kh7 40.Qe4+ g6 41.Qxb7

41...Qe3+ 42.Kh2 Qe6 43.Kg3 Kg7 44.Qb4 Qe5+ 45.Kf3 Qf6+ 46.Kg3 Qe5+ 47.Kf3 Kf6 48.a5 Kg5 49.Qd2+ Kf6 50.Qd8+
[50.Qxh6 Qxa5 would've given me some hope.]

50...Kg7 51.Qb6 Qc3+ 52.Kf2 Qd3 53.Kg1 Qd1+ 54.Kf2 Qc2+
Trading a6 for g4 was not an option. Why risk losing?

55.Kg3 Qd3+ 56.Kh2 Qc4 57.Kg3 Qc3+ 58.Kh2 Qf6 59.Kg3 Qe6 60.Kf3 Kf6 61.Qd4+ Qe5 62.Qd8+ Kg7 63.Qb6 Qc3+ 64.Kf2 Qc2+ 65.Kg3 Qd3+ 66.Kh2 Qc4 67.Kg3 g5
[>=67...Qe2-/+ or a draw-offer.]

68.Qb2+ Kg6 69.Qb1+ Kg7 70.Qb2+ f6
As on move 67, there's no "?" tag because the final result is unavoidable.

71.Qb7+ Kg6 72.Qb1+ Kg7 73.Qb7+ Kg6
Game drawn by mutual agreement. Time left - oswald137 9:00, jpmoldovan 12:57 Time used - oswald137 87:30, jpmoldovan 83:33 Longest think by White - 5:21 for 42.Kh2 Longest think by Black - 16:24 for 33...Qc1+? start - 8:18:35 p.m. end - 11:09 p.m. length - 2 hours, 51 minutes With the disappointing, damaging draw, the margin for error is gone & I'll have to beat my remaining opponents (1917 & 1501 rateds) to win on tiebreak. 1/2-1/2