Shakmaty Bereolos - The Official Chess Site of Peter Bereolos


12/31/05 - Solano-Bereolos, 2005 Knoxville City Championship

In the final round I faced Royner Solano, who is visiting the US from Costa Rica. He played me a tough game in the qualifying tournament and also had a perfect score so far in the championship (the game Fine-Solano from round 1 ended up being played after round 5). His provisional rating combined with equal second place made him the big rating gainer for the tournament. 1. e4 Nc6 From what I had observed of his games, it seemed that he was very comfortable in the open games, so I thought I'd see if he had any interest in 2. d4 e5 3. d5, but he quickly played 2. Nf3 e5 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. h3 A slip of the hand, he admitted afterwards. He had expected me to go for the Marshall Gambit with 7...O-O when the text is one of the anti-gambit moves. 8. c3 is of course the main line.

8... Na5 I had faced 8. h3 several times in the 80s when I mostly chose to transpose to the main line with 8... O-O 9. c3 instead of trying to take advantage of White's move order. The only time I played 8...Na5 was against Marco Robert in the 1983 US Junior Open. I lost that game when I blundered a piece in a winning position, so the result had nothing to do with the opening, yet I still hadn't repeated 8...Na5 since then. 9. d4 Nxb3 This move is given by Polugaevsky in ECO, but 9... exd4 trying for the Noah's Ark Trap also looks good. 10. axb3 exd4 Polugaevsky gives 10...Bb7 with slight advantage to Black. 11. Qxd4 Robert played 11. Nxd4 in the above-mentioned game. 11...O-O 12. Bf4 Bb7 13. Bh2 A strange spot for the bishop, but he didn't want to get hit by Nh5 and Bf6. 13...Nd7 I donsidered the unbalancing 13...Nxe4 14. Rxe4 Bf6 15. Qd3 Bxe4 16. Qxe4 Bxb2, but White is better after 17. Ra2 Bf6 18. Qc6 14. c3 Bf6 15. Qd3 Re8 16. Nbd2 Ne5 16... Nc5 looks natural, but I didn't see how to make progess after 17. Qc2, so I decided to try to make the Bh2 bad. 17. Nxe5 17. Bxe5 would avoid problems with the bishop, but would leave Black with 2 bishops versus 2 knights. 17... dxe5 18. Qc2 Qd6 19. Rad1 Rad8 20. Nf1 Qe6 21. Ne3 Bg5 22. Nd5 This drops a pawn, but Black was already much better 22...Bxd5 23. exd5 Rxd5 24. Rxd5 Qxd5 25. f4 Bf6 26. fxe5 Bxe5 27. Bxe5 Rxe5 28. Rxe5 Qxe5

The queen ending should be winning for Black. Even without the queenside pawns, 3 vs. 2 on the kingside offers Black good chances. Still, this was probably White's best bet, since queen endings can be very tricky. 29. Qd3 g6 30. b4 h5 31. Qf3 Kg7 32. Qc6 Qd6 33. Qa8 Black's extra pawn means that White must avoid any queen exchange 33...f5 34. Qc8 f4 35. Kh1 Kf6 36. h4 Ke5 37. Qe8+ Kf5 38. Qe2 Qd5 39. Qe7 Kg4 40. Kh2 c6? I saw that 40... f3? 41. Qxc7 didn't offer anything, so I decided to save my c-pawn, but the immediate 40... Qf5 41. Qxc7 Kxh4 would have retained a clear advantage. 41. Qf6 Qf5 42. Qxc6 Kxh4 43. Qxa6 f3

44. gxf3? Missing his opportunity 44. Qd6 Kg5 (44... Qg4 45. Qe7+ Qg5 46. g3+ Kg4 47. Qe4+) 45. Qg3+ Qg4 46. gxf3 Qxg3+ 47. Kxg3 Kf5 48. b3 g5 49. c4 Ke5 is equal. 44... Qc2+ 45. Kg1 Qb1+ 46. Kf2 Qxb2+ 47. Kf1 Qb1+ 48. Kf2 Qc2+ 49. Kf1 I had a long think here and managed to calculate all the key variations. 49...Kg3 50. Qd6+ Kxf3 51. Qc6+ 51. Qd5+ Qe4 52. Qd1+ Kg3, White is out of useful checks 51...Qe4 52. Qf6+ Qf5 53. Qc6+ I was hoping for the pretty finish after 53. Qxf5+ gxf5 54. c4 bxc4 55. b5 c3 56. Ke1 h4 57. b6 h3 58. b7 h2 59. b8Q h1Q# 53...Ke3+ 54. Kg1 Qf2+ 55. Kh1 Qf3+ 56. Qxf3+ Kxf3 57. c4 bxc4 58. b5 c3 59. b6 c2 60. b7 c1=Q+ [0:1]


12/28/05 - Bereolos-Fine - 2005 Knoxville City Championship

Boris Fine was a newcomer to our club this year, coming to Tennessee from Germany. He originally received his chess training in the former Soviet Union, but hadn't played for about 20 years until he started again along with his son. I expected him to be one of my main challengers this year, and we both had perfect scores coming into our 4th round game. 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be7 6. Qc2 c6 7. e3 O-O 8. Bd3 Nbd7 9. Nge2 Re8 10. O-O Nf8 11. f3 Nh5 12. Bxe7 Qxe7 13. e4 dxe4 14. fxe4 Qg5 14...Be6 is the main move here

15. Qc1 15. e5 scores very well in the database. The idea is a quick attack on f7 with Ne4-d6. 15... Qxc1 16. Raxc1 Bg4 17. e5

Probably not as strong as on move 15, but still pretty good. It looks commital to make a hole on d5, but I judged that the most important factor in the position was the poor placement of Nh5, so I played to keep it out of play. 17...g6 18. Ne4 Re7 19. h3 Be6 20. g4 Ng7 21. b3 Rd8 22. Bc4 Nd7 23. Nf4 Nb6 24. Rfd1 Bc8

Trying to clear e6 for the knight, but allowing a breakthrough. 25. d5 Nxc4 25... Rxe5 26. Nf6+ Kf8 (26... Kh8 27. dxc6) 27. Nxh7+ is similar to the game. 25... cxd5 . Nxd5 Nxd5 27. Bxd5 Rxe5 28. Bxf7+ is also good for White 26. bxc4 Rxe5 27. Nf6+ Kf8 27... Kh8 . dxc6 and Black has back rank troubles 28. Nxh7+ Ke7 29. Re1 Rxe1+ 30. Rxe1+ Kd6 31. Ng5 Rd7 31... Rf8 was the last chance for serious resistance, but White is still much better because of the horrible placement of Black's pieces, especially Ng7. 32. Ne4+ Kc7 33. Nf6 Rd6 34. Re7+ Kb6 35. c5+ Kxc5 36. Ne4+ Kd4 37. Nxd6 c5 38. Nxc8 [1:0]


12/27/05 - Patterson-Bereolos - 2005 Knoxville City Championship

Fheopatrick Patterson played pretty solidly in this year's championship, but displayed terrible time management. Other than a win over Parker, where he gained a won position right out of the opening, he lost all of his other games on time. 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Nd7 10. d4 After arriving 25 minutes late, he had played the opening moves fairly quickly, but now sank another 24 minutes into this standard move. So I had an enormous lead on the clock without having to exert any energy. 10... Bf6 11. Nbd2?!

After the big think on the move before, he played this little-seen move (after all Black's setup is designed to prevent it) almost immediately. The normal moves are 11. a4, 11. Be3 or 11. d5 11... exd4 12. Bd5 previous games have seen 12. Nxd4 Nxd4 13. cxd4 Bxd4 14. Nf3 Bf6 when White can pick up the bishop pair with 15. Bd5 Rb8 16. Nd4 Bb7 17. Nc6 Bxc6 18. Bxc6 but his compensation looks insufficient after 18... Ne5 19. Bd5 c6 20. Bb3 Nc4] 12... dxc3 13. Bxc6 cxd2 not 13... cxb2? 14. Bxb2 Bxb2 15. Rb1 14. Bxd2 Rb8 15. Qc2 Bb7 After this move, my rook ends up awkwardly placed on b7. It was better to ignore Bc6 with 15... Ne5 . Nxe5 (16. Nd4 Nc4 17. Bc3 b4) 16... Bxe5 the rook still winds up on b7 after 17. Be3 Bb7 18. Bxb7 Rxb7 but Black's position is preferable to the game.; 16. Bxb7 Rxb7 17. Rad1 Re8 18. Bc3 Qc8 19. Bxf6 Nxf6 20. e5 I had expected 20. Nd4 but this move comes very close to equalizing 20... dxe5 21. Rxe5 Rxe5 22. Nxe5 c5 23. Qf5

Two other ways to try to exploit the back rank were blunders: 23. Qxc5?? Qxc5 24. Rd8+ Qf8; 23. Nc6?? Qxc6 24. Rd8+ Ne8 25. Qe2 Kf8 but 23. Rd6 could also be considered 23... Qe8 [23... Qf8? 24. Nc6] 24. Rd6 Re7 25. Qd3 we both saw the line 25. Nc6 Rd7 26. Qxc5 Ne4 overlooking that White could play 27. Rxd7 Nxc5 28. Rd8 but Black is still better in the knight ending after 28... Qxd8 29. Nxd8 Nd3 25... Qf8 26. Nf3 Re6

He lost on time here. Black should eventually make his extra pawn count after 27. Rxe6 fxe6 28. Qe2 Qe7 (28... Qd6 29. Ng5 e5 30. Qf3 Qd5 31. Qf5=); or 27. Rd8 Re8 28. Rd6 Ra8] [0:1]


12/17/05 - Marsh-Bereolos, 2005 Knoxville City Championship

Matthew Marsh was once again the youngest participant in the finals for the third straight year. This time he played according to his rating, beating the players rated below him and losing to those rated above him. 1. d4 Nf6 2. c4 Nc6 I thought I'd try to get some mileage out of my preparation for the Colias Memorial. 3. Nc3 e5 4. d5 Ne7 5. e4 Ng6 6. f3?! If white wants to play this pawn structure, this move should be preceded by 6. Be3 After the text, black's dark-squared bishop is very comfortable on the a7-g1 diagonal 6... Bc5

7. a3 perhaps 7. Qc2 is a more accurate move order so if 7... d6?! 8. b4 7... a5 8. Qc2 I thought 8. Rb1 was more consistent. His plan was to play Nh3-f2-d3 to try to do something about the bishop. 8... O-O 8... d6 to stop Nh3 was more accurate 9. Nh3 d6 10. Nf2 c6 Black could also try to play on the kingside with 10... Nh5 11. g3 f5 but I didn't really like giving his knights the e4 square 12. exf5 Bxf5 13. Nfe4 11. g4?! This loosens the kingside too much and his king will now struggle to find safety. Better was 11. Bd3 follwed by 0-0 11... Nh4 12. Qe2 12. Be2 Ng2+ 13. Kf1 Ne3+ 14. Bxe3 Bxe3 and the dark-squared bishop is dominant 12... Ne8 A good multipurpose move. Black stops White's threatened Bg5 and opens the way for Qf6. The f-pawn is freed for a possible break with f5 (which might also be supported by g6 and Ng7). The knight is also poised for queenside action with Nc7 to support b5.

13. Nd313. Be3 Qf6 13... Bd4 14. Bd2 again 14. Be3 Qf6 14... Nc7 15. O-O-O This castles into an attack, but the king wasn't going to go kingside. It seems difficult to find a plan for White. 15... cxd5 16. Nxd5 16. exd5 f5 looks good for Black; 16. cxd5 might be a tougher defense since the Nc7 could clog up attacking lanes. Black then has a choice between 16... b6 with the idea Ba6 or 16... b5 when one line I looked at was 17. Na2 b4 18. axb4 Ba6 19. bxa5 Qb8 20. b4 Rc8 with everything pointing towards his king. 16... Nxd5 17. cxd5 Bd7 18. Kb1 Qb6 19. Be1 Ng6 20. h4 20. Bf2 Bb5 (20... Nf4 21. Bxd4) 21. Bxd4 Qxd4 22. Qd2 Bxd3+ 23. Qxd3 Qa7 maintaining the queens in a good knight vs. bad bishop position 20... Ba4 20... Bb5 is also strong 21. Rc1 Rfc8 22. b4 a horrible looking move, but allowing Qb3 looks unpleasant. 22... Bb5 23. Qa2 23. Rh2 axb4 (23... Rxc1+ 24. Kxc1 Rc8+ 25. Kb1 Nf4 26. Qd1) 24. Rxc8+ (24. Bxb4 Bxd3+ 25. Qxd3 Qxb4+ 26. axb4 Ra1#) 24... Rxc8 25. Bxb4 Rc3 26. Qd1 Bxd3+ 27. Bxd3 Rxa3; or 23. Rxc8+ Rxc8 24. Qd1 axb4 are also winning for Black

23... Bxd3+ 24. Bxd3 Rxc1+ 25. Kxc1 axb4 26. Qc4 bxa3 27. Rh2 Bb2+ [0:1]


12/6/05 - Bereolos-Parker, 2005 Knoxville City Championship

As I mentioned previously, Patrick Parker was a big underdog in this year's field. Hopefully, he won't be discouraged by his result as he was rated almost 700 points below the next lowest competitor. He had some disasters, like this game, but played a decent game versus Matthew Marsh, missing a draw at one point. 1. d4 Nf6 2. c4 c5 3. d5 d6 4. Nc3 g6 5. e4 Bg7 6. f4 Nbd7 I've often commented on the inflexibility of this move here. The present game shows one of the main problems. 7. Nf3 e5? 7... e6 also loses to the same reply

8. dxe6 fxe6 9. Qxd6 Qb6 10. Qxb6 axb6 11. e5 Ng8 12. Nb5 Kd8 13. Ng5 Nb8 13... Ke7 14. Nxe6 Kxe6 15. Nc7+ Ke7 16. Nxa8 +- 14. Nf7+ Ke7 15. Nxh8 Bxh8 16. Be3 Nh6 17. Bf2 Nc6 18. a3 Nf5 19. g4 Nfd4 20. Nxd4 Nxd4 21. Bxd4 cxd4 22. h4 to prevent any thought of ...g5 to free the bishop 22... Bd7 23. Bg2 Bc6 24. O-O b5 25. Bxc6 bxc6 26. cxb5 c5 27. Rac1 Rc8 28. Rc4 [1:0]


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