Annotated by IM Manuel Aaron
his light square bishop unchallenged sway
along the long white diagonal. especially as
white does not have a white square bishop.
However better was the preliminary: 20...
fxg4 with traces of advantage for black.]21.
exf5? [White can thwart black's plan by
capturing with the other pawn: 21.gxf5!
c5 22.Nd5! Bxd5 23.exd5 a5 24.d6²]21...
c5 22.Kh2 [The Nd5 resource indicated in
the previous note is sadly lacking here because white has no pawn on e4.]22...Bf3
[22...Qa6 (threat b5–b4) 23.a3 b4 24.axb4
cxb4 25.Na2 Re2 26.Qc7 Bb6 27.Nxb4 Bxc7
28.Nxa6 Bxa6 29.Bxc7 Rc2³]23.Rde1 [Better
was: 23.Rd2 b4 24.Ne2 Bg7 25.Ng1 Bb7=
(25...Bxg4? 26.f3 Bh5 27.g4+–) ]23...Qc6
24.g5 Bg2 25.Rg1 [Black threatens 26
...Nxb5 27 Qxb5 Kxg2.]25...b4 26.Nb5
Qxb5 27.Kxg2 Qc6+ 28.Kh3 Qf3 29.Be3?
[Diagram #][Much better was: 29.Rgf1 Rxe1
30.Rxe1 Bxf2 31.Qe2 (31.Rf1 Qh5+ 32.Kg2
Re8! 33.Rxf2 Re1 34.Rf1 (34.g4 Qxg4+
35.Kh2 (35.Bg3?? Re3–+) 35...Qh4+=) )
31...Qxe2 32.Rxe2 Bd4 With material level
white's prospects are excellent as his control
over the e-file cannot be challenged.]
34...c4! 35.e5 (35.Qxc4 Qh5+ 36.Kg2 Rd2+
37.Kf1 Qd1#) 35...Qh5+ 36.Kg2 Re3!
(threat 37....Re2+ winning queen) 37.Qxc4
Re2+–+]33...Qxf5+ 34.g4 Qxg5 35.Qf2 Rd6
[Black plans to capture g4 also and reach
a simple winning position.]36.Qf3 Rh6+
37.Kg2 Rh4 38.Rh1 Qxg4+ [Two pawns
up, black wants to ensure victory against
his Grandmaster opponent and exchanges
off queens not wanting to give white the
smallest chance to escape. He could also
win with: 38...Rxg4+ 39.Kf2 Rc4! 40.Re1
(40.Rg1? Rc2+ 41.Kf1 Rc1+–+) 40...Rc2+
41.Re2 Qh4+ 42.Kg2 Rc1 43.Qg3+ Qxg3+
44.Kxg3 c4–+]39.Qxg4+ Rxg4+ 40.Kf3
Rc4 41.Rh2 Kg7 42.b3 Rc1 43.Ke4 Rg1
[Diagram # Black has played the game so far.
But it is not known how he would handle the
winning rook ending that he has got. Instead
of tamely giving up the game, white
should try 44 Rh5 and test the Rook and
Pawn ending prowess of his 15–year old opponent.]0–1
29...Bxe3 30.Rxe3 Rxe3 31.fxe3 Rd8!
32.Re1!! [Excellent tactics! He gives time for
white to defend his e3 pawn. If now 32.Qxc5
Qh5+ 33.Kg2 Rd2+ 34.Kf1 Qe2#]32...Rd5!
33.Qe2 [33.e4 Rd3 34.Rg1 (34.Qg2?? Qh5#)
40
AICF CHRONICLE
JUly 2016
Sidhant,Mohapatra (2239) Sandipan,Chanda (2585) [A00]
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6
5.Nc3 a6 6.Be3 e6 7.f3 b5 8.Qd2 b4
9.Na4 Nbd7 10.c4 bxc3 11.Nxc3 Bb7
12.Be2 Be7 13.0–0 0–0 14.Rfd1 Rc8
[Pv.Nandhidhaa (2174) vs Irina Petrukhi-