Fine win by Callum at Hastings

One might have expected that 13 year old Callum Brewer would have found the opposition daunting at his first Hastings Masters tournament, but instead he did well to score four points out of nine. His best game was in the first round, when he completely outplayed the Norwegian player, Joar Pettersen. I enclose the moves of this excellent win:

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[Event "Hastings Masters"]
[Site "?"]
[Date "28.12.2013"]
[Round "1"]
[White "Joar G Pettersen"]
[Black "Callum D Brewer"]
[Result "0-1"]
[WhiteELO "?"]
[BlackELO "?"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ {The Bogo-Indian Defence named after Russian grandmaster, Efim Bogoljubov (1889-1952), who challenged Alekhine twice for the World Championship in 1929 and 1934, but lost on both occasions.} 4. Bd2 {A more critical line is 4 Nbd2 to try to keep the two bishops.} a5 5. Nc3 b6 6. g3 {If White wanted to fianchetto this bishop, it was probably better to have done it a move earlier. 6 e3 seems better.} Ba6 7. b3 d5 8. cxd5{If 8 Bg2 Black can play 8...dxc4 9 bxc4 Bxc4 and if 10 Ne5 Bd5 with a safe position.}
exd5 9. Bg2 O-O 10. O-O Re8 11. Re1 Ne4 12. Nxe4 dxe4 13. Ng5 {A mistake which puts this knight effectively out of play. White cannot play 13 Ne5 because 13...Bxd2 14 Qxd2 Rxe5 wins a piece. However, White could have done better with 13 Bxb4 axb4 and then 14 Ne5.} Bb7 14. Bxb4
axb4 15. h4 Nd7 16. Qc2 Nf6 17. Rec1 Re7 18. e3 Qd6 19. Bf1 {White is running out of ideas. Black has a bind over the position, which makes it difficult for White to form a plan.} h6 20. Nh3 Nd5
21. Bg2 f5 {Surprisingly this natural-looking move may not be best as it weakens the g6 square. White was not threatening to capture on e4 as Nxe3 would then have been a good reply. 21..Ra3 would have been very good for Black.} 22. Kh2 {Better for White was 22 h5 to try to hold up Black's g5 plan, though Black was still much better.} Kh8 {At this stage of the game it is not entirely clear where the Black king is best placed. Black could again have played Ra3, but the most critical move was 22...g5. Wild complications arise in the variation 23 hxg5 hxg5 24 Nxg5 f4! It would probably be beyond the human mind to calculate these lines with certainty in over-the-board play, but it appears that Black would have been winning in all variations.} 23. Rg1 {Again 23 h5 seems to have been the only chance.} Qf6 {Good enough, though Black could have played an immediate 23...g5 since 24 hxg5 hxg5 25 Nxg5 Rg8 looks like a clear win.} 24. Bf1 {If now 24 h5, Black wins by Qf7.} g5 25. hxg5 hxg5 26. Bc4 {26 Rh1 would have given more chances.} g4 {This fine move had to be calculated carefully.} 27.
Bxd5 Qh6 {Not 27...Bxd5 when 28 Nf4 brings White back into the game.} 28. Rh1 Rh7 {A very nice finish with White now losing a piece. A very mature game by one so young.} 0-1