Sunday 25 February 2024

Cambridge Round Seven

FACED a junior (born 2010).

Max Pert (2210 ECF/2082 Fide) - Spanton (1916 ECF/1766 Fide)
Jobava-Prié
1.d4 d5 2.Nc3 Nf6 3.Bf4 a6!?
As I pointed out in the introduction to my series on ideas behind the Jobava-Prié, this 'duffers' move' has been played by "those well-known non-duffers Carlsen, Caruana, Svidler and Nakamura."
4.e3 Bf5 5.f3 e6 6.g4 Bg6 7.h4 h6 8.Bd3
How should Black continue?
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8...Bh7
Stockfish16 and Komodo14.1 prefer 8...Bxd3, but disagree as to whether White should reply 9.Qxd3 or 9.cxd3.
9.Nge2 c5 10.Bxh7 Nxh7 11.Qd2 Nc6 12.dxc5 Bxc5 13.0-0-0 Qe7
The engines prefer 13...Rc8 or 13...0-0!?
14.Nd4 Nxd4 15.exd4 Bb4 16.Qe3 Bd6!? 17.Rde1 Bxf4 18.Qxf4 0-0-0
Now both sides have castled, how would you assess the position?
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White has more space and the better-coordinated pieces. The engines reckon White has a slight edge.
19.Qe5 Qf6 20.f4 Rd7 21.f5 Qxe5 22.Rxe5 Nf6!?
The engines prefer 22...Rd6.
23.fxe6 fxe6 24.Rg1!?
This may be too passive. The engines reckon 24.Rxe6 Nxg4 25.Na4 gives White the upper hand.
24...Rd6 25.g5 Nd7 26.Re3 hxg5 27.hxg5 Rh4 28.Ne2 Kd8 29.b3 Rc6?!
The engines prefer the consistent 29...Ke7. Note that White is not threatening to play c4, so there was no need to remove the rook from its position of protecting d5 and, at the same time, providing latent pressure against d4.
30.Rf1 Rg4?!
Probably 30...Ke8 is better.
31.Nf4 e5!? 32.dxe5 Rxg5 33.e6 Nf6 34.e7+ Kd7?!
Probably better is 34...Kd8, but 35.Rh1 is strong.
35.Nh3 Rg2 36.Rxf6! Rgxc2+
White to play and win
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37.Kb1 1-0
Note that 37.Kd1? only draws after 37...Rc1+ 38.Ke2 R1c2+.

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