### (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...Na5
[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
Diagram

/\ b3 or b4.

10...Qc7!
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
]

11.b3?!
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
Diagram

19.c4
[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.a4?
[>=21.Qd3
Rac8
22.Ba4
Rfd8
23.Bc2
g6
24.Qe3
Kg7
25.Be4
; ‹21.Bxc6
Rac8
22.d5
exd5
23.Qxd5
Rxc6
]

21...Rac8
Threatening 22...Nxe5.

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

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

26...Qc5
[>=26...Rc1
& a trade of Rs.]

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

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

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

30.Rd1?!
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
Diagram

32...Rxd4?
[>=32...Qxd4
33.exf7+
Kf8
& White can resign.]

33.e7!
Uh-Oh. Goodbye extra R. Hello P-up Q ending.

33...Qc1+?
[>=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...Qxf2
[>=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
Diagram

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**