Marymass Congress

The Marymass congress takes place in Irvine between the 21st and 23rd August.
Bon Accord players Euan Gray, Leston D’Costa, Nandini Dutta and Oishani Dutta will be competing: Euan in the open, Leston in the major and Nandini and Oishani in the minor.

We wish them all the best of luck.

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Scottish Grand Prix Prize Winners

A number of Bon Accord players took prizes in the Annual Scottish Grand Prix.

In the Adult Grand Prix Hamish Olson and Murad Abdulla finished 2nd and 3rd in the Candidates (1901-2150) section. Murad also took the junior prize.

In the Minor section (under 1450) Vagif Ramazanov finished 8th overall and won the junior prize.

In the Junior Grand Prix Stuthi Hegde finished 3rd in the Rooks section (J14 – J16), Callum Smith finished 3rd in the Bishops section (J12 – J13) and Aditya Hegde 3rd in the Pawns section (J5 – J9).

A full list of prize winners can be found on the Chess Scotland website for the Adult Grand Prix and the Junior Grand Prix.

Prague summer open rounds 8 and 9

Hamish Olson and Neil Irving finished their tournaments in Prague with 1.5/2 in the final rounds.

In the A open Hamish drew his round 8 game with white against Egor Chekletsov of Russia (rated 1912 and aged 12) and in the final round miniatured Czech player Tomas Kucera (1995) with the black pieces to finish on 5/9. His full results can be seen here.

In the last round game Hamish (as black) reached the following position after white’s 11th move.

Kucera vs Olson Prague 2015. Black to play and win
Kucera vs Olson Prague 2015.
Black to play and win

The solution is at the end of this article.

In the B open Neil defeated the Czech player Jiri Svelty (1919) in round 8. His notes are as follows:

1. d4 Nf6 2. Nf3 g6 3. c4 d6 4. Nc3 Bg7 5. e4 O-O 6. Be2 Nbd7 7. Be3 e5 8. d5 Nc5?!

I think this is an inaccurate move because it allows white to re-deploy the kings knight onto d2 while the bishop stays active on e3. The database confirms that white scores about 70% from this position. Having said that a few grandmasters (Fier, Markos) have played the black side of this position. 8… Ng4 is better.

9. Nd2 a5 10.a3

Black to play
Black to play

10…a4

I like this idea of sacrificing a pawn in exchange for the dark squared bishop. It may not be correct but it is a justification for black’s move 8. 10… Ne8 aiming for f5 is the most popular move in this position but then white can get on with his queenside play with 11. b4 axb4 12. axb4 Rxa1 13.Qxa1 Na6 14. Qa3 f5 15. O-O (After 15. f3?! which I have played once black has the tactic 15…Bh6 16.Bxh6 Qh4+ equalising) 15… f4 16. Ba7 b6 (16… Bd7 17. f3 and white’s attack on the queenside is very strong) 17. Ra1 followed by c5 is good for white.

11. Bxc5 dxc5 12. Nxa4 Qe7 13. O-O Ne8 14. Qc2 f5 15. Nc3 f4?!

I didn’t think this move was positionally very good because it closes off the h6 – c1 diagonal for the black bishop I prefer  either 15… Nd6 or 15… Bh6. Now I decided it was time to grab the initiative

White to play and seize the initiative
White to play and seize the initiative

16. b4!? g5!?

Black decides he isn’t interested in taking any of these pawn things and goes for the attack on the Kingside. If black had taken the pawn then I was planning after 16… cxb4 17. axb4 Rxa1 18. Rxa1 Qxb4 to play 19.Rb1, but Houdini finds the stronger 19.Nb3 Qe7 (19… Nf6 20. c5 and the Queen is getting trapped) 20.c5

17. h3

I played this on the basis that it slows black’s attack down by a move because he has to play Nf6 and h5 before he can get g4 in.

17… Nf6 18.bxc5 g4 19. d6!?

I was determined to try and seize the initiative somehow, so I again try returning a pawn.

19… cxd6 20. cxd6 Qxd6 21. hxg4

Black to play
Black to play

21…Bxg4?

I was very surprised he allowed me to swap off the light squared bishops. The light squared bishop is often a key attacking piece in this type of pawn structure, plus this reduces the number of attacking pieces black has by one. 21… Nxg4 is much more dangerous.

22. Bxg4 Nxg4 23. Qd1

After the game Hamish suggested 23.Nf3 because it doesn’t allow black any ideas based on a pawn sacrifice on f3

23… h5

So here I hadn’t considered 23… f3 24. Nxf3 Qh6 25. Re1 Rxf3 26. Qxf3 Qh2+ 27. Kf1. It doesn’t work but I should have considered the possibility.

24. Nf3 Qc6 25. Nd5 Qc5  26. Qb3 Rf7 27. Ng5

White is winning
White is winning

The white knights are too powerful in this position so black is lost. I thought now he might try 27… Rd7 28. Nb6 Rd2 29. Nxa8 Rxf2 which Houdini tells me is winning for white, but looked scary at the time. If he had played 27…Rd7 I would just have followed up with 28. Qb6

27… Re7 28. Nxe7+ Qxe7

I am now an exchange and a pawn up but fairly short of time. The rest of the game isn’t particularly accurately played, but there were no major blunders either.

29.Nf3 Bf8 30. Rab1 Rb8 31. Qb6 Kg7 32. Qa7 Qc7 33. Qb6 Qe7 34. Rbd1 Ra8 35. Qb5 Kg6 36. Rd7 Qc5 37. Qxb7 Rxa3 38. Qd5 Nxf2 39. Qf7+

And black resigned because of mate next move, although Qe6 checkmate would have been an improvement for white on move 39!

In the last round Neil agreed a quick draw with black against Czech junior Daniil Bystrickiy (1877) to achieve a final score of 6/9. His results can be seen here.

Both Hamish and Neil enjoyed playing in Prague and would recommend Czech tour events for other players.

The conclusion of the game Kucera – Olson was 11…Nxd4 12. Bxd4 a6 13. Bd3 Nc6 14. Be3 d4 15. Bg5 Bxf3 16. Bxd8 (if 16.Bxh7+ then 16…Kh8 still wins a piece) Bxe2 17. Bxe2 Raxd8 resigns.

Prague summer open rounds 5, 6 and 7

Hamish and Neil started the tournaments in Prague with an excellent series of results (see post here). In the middle rounds of the tournament both found life a bit tougher.

In the A open Hamish had the following pairings:

  • Round 5 – Black vs Roman Vogel (Germany 2420)
  • Round 6 – White vs FM Boris Furman (Russia 2227)
  • Round 7 – Black vs Alexander Chudinovskikh (Russia 2275)

He lost the first two games and had a very complicated draw in round 7, which Hamish has posted on the Bon Accord chess club facebook page. He now has 3.5/7 and in round 8 he has white against Russian junior Egor Chekletsov (1912).

In the B open Neil also ran into tough opposition:

  • Round 5 – White vs Damir Marinc (Slovenia 2016)
  • Round 6 – Black vs Karsten Bertram (Germany 2131)
  • Round 7 – Black vs WFM Tanya Shevchenko (Ukraine 2005)

In round 5 having played a nice attack and won a piece he unfortunately blundered in the endgame and lost. In round 6 he reached the following position with black to move

Black to play and make progress
Black to play and make progress

This position was reached shortly after the time control. Neil had managed to see off white’s attack early in the game and has won an exchange. In the meantime white has been trying to set up a fortress. The only way Neil could find to make progress was to return the exchange

44… a5 45. Rxb5 Rxd4 46. Qxd4 Qxg5+ 47. Kh3 Qf5+ 48. Qg4 Qd3

White is lost!
White is lost!

In this position white thought for over three quarters of an hour! After about fifteen minutes Neil suddenly realised that white is completely lost.

e.g.

  • 49. Qxh4 Qxf3+ (and not 49…Qxb5?? 50.Qf6+ which allows white to give a perpetual check despite being a rook down) 50. Qg3 Qf1+ and now black can take the rook.
  • 49. Kxh4 Rc4 or 49… Qxb5 winning material
  • 49. Kg2 Qxb5 wins a rook
  • 49. Rxa5 Rc4 (this was the move Neil had missed initially) 50. Qg2 Qf5+ 51.Qg4 Rxg4 52. fxg4 Qf1+ 53. Kxh4 Qf2+ 54. Kh3 g5 and checkmate next move

The game continued 49. Rb2! (the only move that doesn’t lose on the spot) Rc4 50. Rd2 Qxc3 51. Qg2 Qxe5 and with two extra pawns and and an attack black won quite quickly.

In round 7 he lost a complicated game against WFM Tanya Shevchenko which at one stage he was winning. He now 4.5/7 and white in round 8 against Jiri Svetly (1919) of the Czech republic.

Prague Summer Open rounds 1 – 4

After four rounds of the Prague summer open Hamish is on 3/4. His first round game was black against the top seed Grandmaster Evgeny Vorobiov of Russia (rated 2575). Hamish held on for a long time, but blundered a pawn in a time scramble after which the Russian’s formidable technique won the game. He followed up with three consecutive wins against Ieyessa Bin-Suhayl of Italy (rated 1934 and 11 years old!), Petr Tichy (1889) and Daniel Rous (2201) both of the Czech republic. He should be on the live boards tomorrow.

His game as black against Petr Tichy reached the following position after 20 moves.

Black has a thematic pawn sacrifice
Black has a thematic pawn sacrifice

Here having already sacrificed one pawn for an attack, Hamish now gives up another pawn to get at the king.

20…e5! 21. Qxe5 f4 22. Kh2 (otherwise Qxh3 wins. The only defence was 22.g4 but then 22…Bxg4 is good for black)

The game proceeded 22…Qd3 23. Re1 fxg3+ 24. Qxg3 Rf7? (a slight mistake 24.Be4! removes some defences based on e4) 25. b3 Qc2 26. Ba3 Bb7 27. Kg1 Rf6 28. Rec1 Qe4 29. Qh2?

Black to play and checkmate
Black to play and checkmate

And in this position white gets checkmated after 29…Rg6+ 30. Kf1 Qd3+ 31. Ke1 Ba6 32. f4 Qxe3+ 33. Kd1 Qd3+ 34. Ke1 Re8+

In the B open Neil began with a win against local player Karel Tomanek (rated 1418), and was faced in round 2 with black by top seed Israeli Semyon Karasik (2187). In a level position after 15 moves Neil was the recipient of a draw offer (presumably a swiss gambit) and accepted.

In round 3 against Klaus Thalhammer (1946 from Austria) as white Neil reached the following position.

 

White needs to find a good move
White needs to find a good move

White’s opening has gone a bit wrong and black is now threatening to play c5 when his knight on d4 will dominate the position. Here Neil found the only good move the pawn sacrifice 13.c5 dxc5 14.Bc4 when as compensation for the pawn white has the bishop pair, an excellent square for the light squared bishop on c4 and black has weaknesses on c5, c6 and a6.

The weaknesses proved to be decisive and the game reached this position on move 29.

White to play and win
White to play and win

here white won after 29.Bc4 Qf6 30.Bxg8 Rxg8 and now black resigned after 31.Qa6 Nc8 32.Qb7+

A win in round 4 against Women’s International Master Nora Mohd Saleh (1907 of the UAE) leaves him on 3.5/4.

Bon Accord Chess Club Allegro Rating List 2015

Bremner Adam 2244
Edwards Jonathan 2146
Maxwell Daniel 2125
Lothian Robert 2034
Olson Hamish 1993
Harwood Duncan J 1950
Abdulla Murad 1886
Jennings Richard L 1812
Cavanagh Mike 1724
Clifford John 1695
Irving Neil 1681
Holmes Hugh D 1680
Mitchell Jeremy J 1676
Milton Carl 1675
Davidson Eric 1674
Telford Ricky 1633
Beaney Alex 1592
Ewen John 1568
Smith Alan 1567
Milton Anna 1563
Pasha Tariq 1560
Grieve Ian 1540
Barclay Mark 1538
Smith Callum 1526
Abdullayev Mahir 1422
Gray Euan 1394
Ramazanov Vagif 1385
D`Costa Leston 1384
Stewart Alex J 1268
Milton Sean 1127
Bodrell Dylan 896
Hegde Stuthi 780
Kante Kalyan 749
Ramazanov Vusal 687
Hegde Aditya 268