Saturday, 21 December 2019

Accelerating Defeat

FACED a junior (b2010) in the first round of Coulsdon Christmas U2000/170 today.
Soham Kumar (1512/121) - Spanton (1951/168
Sicilian Accelerated Dragon
1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Nc6 5.Be3 Bg7 6.Nc3 Nf6 7.Be2 0-0 8.0-0 d5
The possibility of playing ...d5 in one move, instead of first playing ...d6 as in a regular Dragon, is one of the main points of the Accelerated move-order.
9.exd5 Nxd5 10.Nxd5 Qxd5 11.Bf3 Qa5!?
A theoretically well-regarded gambit line. The main alternative is 11...Qc4.
12.Bxc6!?
Much more popular is 12.Nxc6, but the text may be better.
12...bxc6 13.Nxc6 Qc7 14.Nb4
14.Nxa7?! Rxa7 15.Bxa7 Qxa7 is very good for Black, according to Stockfish10 and Komodo10.
14...Bxb2
The engines prefer Black to get on with development by playing 14...Bb7.
15.Nd5 Qd6!?
This move, which is the choice of the engines, may be new, or at least is not in ChessBase's 2020 Mega database.
16.Bf4 e5?!
The engines give 16...Qc5 17.Rb1 Bg7 18.Be3 Qd6 19.c4 with what they reckon is a level position, although there is plenty of play left.
17.Bg5 f6?
The engines give 17...Bg4 18.Qd2 f6 19.Bxf6!? Bd4 (19...Rxf6?? 20.Nxf6+ Qxf6 21.Qd5+ wins for White) 20.Ne7+ Kf7 21.Bh4 with what looks like a very good game for White, eg 21...Rae8 22.h3 Bd7 23.Rfd1 Rxe7 24.c3 Re6 25.cxd4 exd4 26.Bg3 (but not 26.Qxd4?? Re1+) Qd5 27.Qf4+ Kg8 28.Rxd4.
White to play and win
*****
*****
*****
*****
*****
18.Nxf6+!
Much better than 18.Bxf6, which Black can meet with 18...Qe6, or even 18...Bd4, and still be very much in the game.
18...Rxf6 19.Bxf6 Bxa1??
19...Qxd1 20.Raxd1 Kf7 at least keeps the game going, but White is winning.
20.Qxd6 1-0

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