40 moves in 45+5, then SD/15+5 (delay)
A47 Queen's Indian Defense
London System
1.d4
e6
2.Nf3
Nf6
[A switch from the 2...f5
I played on Sunday in Westfield and something new in our series.]
3.Bf4
! Prié
3...b6
[3...c5
/\ ...Qb6; & 3...Bd6!?
are other ways to play.]
4.e3
[For 4.h3
?! Prié 4...Bb7
(4...Ba6
! Prié 5.g4!?N
) 5.e3
Be7
see my US15P07 win vs. Pitter & Minkov - Sherer : Kenilworth Ch. 2008.]
4...Bb7
5.Nbd2
[For 5.Bd3
(! Prié) see my opponent's 2008 KST win vs. Sherer.]
5...c5
[5...Nh5
! Voronkov; For 5...Be7
see my 2009 GSCL loss to Fernandez.]
6.Bd3
[6.h3
is most accurate. As a London rule of thumb, White should answer ...c5 or ...Be7 (possibly ...d6, as well), whichever comes 1st, by making a retreat at h2.]
6...cxd4
Another rule: When the enemy's b-Knight has been commited to d2, Black should trade Ps at d4.
7.exd4
Be7
...Nh5 = was best here and at moves 8-10.
8.0-0
Again >= h3, here or on the next 2 turns.
8...0-0
Diagram
9.Re1
d6
10.c3
Nbd7
[For 10...Re8
see Kernighan - Mangion : Fish Memorial 2010]
11.h3
[For 11.Nc4
see Fernandez - Stoyko : GSCL 2009-10]
11...Re8
[RR: 11...Qc7
12.a4
a6
13.Bh2
Rfe8
14.Qb3
Bf8
15.Re2
Bc6
16.c4
Qb7
17.Rae1
d5
Kamsky - Carlsen : Tal Memorial Blitz, Moscow 2008]
12.Bh2
Nf8
[12...a6
, /\ completing the Hedgehog setup with ...Qc7 and ...Rac8, before choosing between Stoyko's ...Nf8 approach or Dzindzichashvili's ...Bf8 method, is more flexible.]
13.a4
a6
14.Ng5
[>=14.a5
b5
15.c4+/=
]
14...Ng6
[>=14...Nd5
]
15.Nde4
[>=15.Ndf3
]
15...Nxe4
16.Nxe4
Diagram
16...Bxe4?!N
After a rather long thought, I decide to swap my good B for Mark's pesky N and trade-off my inferior d.s. B. [>= Kernighan's 16...Nh4!=
, which I never considered,; 16...f5
17.Nd2
Olejarczyk - Przybylski : Warsaw 2010 17...Bg5!=
, which I missed,; 16...h6=
; & 16...Qd7=
]
17.Bxe4
d5
18.Bd3
[‹18.Bxg6
hxg6=
]
18...Bd6
19.Bxd6
Qxd6
20.g3
This prevents ...Nf4 and prepares to attack a6 with Qe2.
20...a5
Anticipating White's plan, I push my a-pawn out of harm's way.
21.h4
Nf8
Another pro-active move. 22.h5 N moves 23.h6 would have loosened the dark squares around my K.
22.Kg2
[‹22.f4
Nd7=
; & 22.h5
h6=
]
22...e5
23.Bb5
This gains a tempo but takes the B out of play. [>=23.Rxe5
Rxe5
24.dxe5
Qxe5
25.Qb3+/=
]
23...Re6
24.dxe5
Rxe5
Diagram
25.Rf1
Looking to take advantage of his lead on the clock (12 minutes to 6:47) and keep the game complex, my foe goes against conventional idP wisdom and avoids a trade of Rs. [>=25.Qd2
Rxe1
26.Rxe1
Rd8
27.Rd1
/\Ne6
(27...Qc7=
) 28.Bc4!+/=
]
25...Qc5
This stops White from hitting d5 a 3rd time, with the opportunistic 26.Bc4.
26.Qd2
Rd8
27.Rad1
Ne6
Black's pieces are very well placed now and are ready to support ...d4 which, once the back-rank weakness is addressed, dissolve the isolonus.
28.b4
This gains another tempo but makes my d-pawn a passer.
28...axb4
29.cxb4
Qd6
30.f4?!
[>=30.Rfe1
]
30...Re4
31.f5
[>=31.Rb1=
]
31...Nc7
Diagram
32.Rb1?
[>=32.Bd3
Rxb4
33.f6=/+
]
32...Nxb5
33.axb5
f6?
This stops the aforementioned f5-f6... [... But >=33...d4-+
]
34.Rfe1
Qe5
35.Qf2
d4-/+
Black offers a draw. White accepts.
Game drawn by agreement.
Time left - Kernighan 0:11, Moldovan 3:15
Estimated time used - Kernighan 47:49, Moldovan 44:40
Longest think by White - 4 minutes for 15.Nde4 and 21.h4
Longest think by Black - 12 minutes for 16...Bxe4
1/2-1/2