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July Knockout-Swiss Tournament 2018 Report 3 the 2018 Knockout

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July Knockout-Swiss Tournament 2018 Report 3 the 2018 Knockout July Knockout-Swiss Tournament 2018 Report 3 The 2018 Knockout & Swiss tournament is coming to its end. Next week in the final knockout match Nelson Casta~neda(white) and Suhas Kodali (black) will play for the championship title. The Swiss part of the tour- nament has five players tied for first with two points each. They are Joe Bihlmeyer, Andrew Colwell, Mario Guevara - Rodriguez, Dennis Himes, and Jithu Sajeevan. The results of the Swiss part of the tournament were the following White Result Black Joe Bihlmeyer 1 { 0 FM Rick Bauer Gert Hilhorst 1/2 { 1/2 Harold Blanchard John Twombley 0 { 1 Mario Guevara - Rodriguez Dennis Himes 1 { 0 Kevin Zimmerman Jithu Sajeevan 1 { 0 Elizabeth Smith Joe Mansigian 1/2 { 1/2 Laurent Lafosse Norman Aldrich 1 { 0 Parthiv Malipeddu Chris Hoffman 0 { 1 Yogahari Jegadeeswaran Bill Campbel 0 Bye In the knockout part the results of the two semifinals were the following White Result Black Andrew Colwell 0 { 1 Nelson Casta~neda Suhas Kodali 1 { 0 David Herscovici 1 The parings for the fourth round of the Swiss tournament are White Result Black Mario Guevara - Rodriguez Joe Bihlmeyer Andrew Colwell Dennis Himes FM Rick Bauer Jithu Sajeevan Harold Blanchard David Herscovici Norman Aldrich Gert Hilhorst Elizabeth Smith Joe Mansigian Kevin Zimmerman Yogahari Jegadeeswaran Laurent Lafosse John Twombley Parthiv Malipeddu Bill Campbel Chris Hoffman 0 Bye The standings in the Swiss tournament are Player Points Joe Bihlmeyer 2 Andrew Colwell 2 Mario Guevara - Rodriguez 2 Dennis Himes 2 Jithu Sajeevan 2 Rick Bauer 1.5 David Herscovici 1.5 Gert Hilhorst 1.5 Harold Bachard 1.5 Norm Aldrich 1.5 Joseph Mansigian 1 Kevin Zimmerman 1 John Twombley 1 Laurent Lafosse 1 Elizabeth Smith 1 Yogahari Jegadeeswaran 1 Bill Campbell 0.5 Chris Hoffman 0 Parthiv Malipeddu 0 2 Here are some games from round 3. I used Fritz 13 to help me evaluate the positions and also comments I heard from the players after the games. The game Suhas Kodali vs. David Herscovici includes comments provided by David. Colwell, Andrew (1995) July Knockout Swiss 2018 Castaneda, Nelson (2356) Nimzo { Indian { E44 center of white attacking it with e6 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 and c6. 4. e3 0{0 5. Nge2 b6 6. a3 Be7 7. d5 d6 8. Ng3 c6 9. e4 Re8 rmbl0skZ 10. Be2 a6 11. 0{0 Qc7 12. Be3 o0opapop 0o0Zpm0Z Z0Z0Z0Z0 0ZPO0Z0Z rmbZrZkZ O0M0O0Z0 Z0l0apop 0O0ZNOPO popopm0Z S0AQJBZR Z0ZPZ0Z0 0ZPZPZ0Z In the variation of the Nimzo - In- O0M0A0M0 0O0ZBOPO dian played here white has devel- S0ZQZRJ0 oped the king-side knight to e2 to be able to recapture with this knight on c3 in case black responds 6. ... Bxc3. So white would like to have the pair of bishops without damag- My move 10... a6 does not seem to ing the pawn structure. However, it be that good according to Fritz 13. is not clear that the pair of bishops I was aiming to get a pawn struc- is an advantage because the struc- ture alike the one from the Benoni ture of pawns in the center is yet to defence capturing e x d5 at some be determined. The move I played point and playing g6. I wanted to 6.... Be7 is a common alternative have the queen on c7 and a6 was to to the exchange in c3. The fight in avoid jumps of the knight to b5. the middle game is about the center. With his next move Andrew aims 12. Nbd7 13. Rc1 Bf8 14. f3 for some space advantage with d5. e×d5 15. c×d5 c5 16. b4 g6 Black first plan is to undermine the 17. b×c5 b×c5 3 rZbZrakZ the execution. After the game An- Z0lnZpZp drew told me that he was worried pZ0o0mpZ about the knight on b2 being in Z0oPZ0Z0 danger. It turns out that he was 0Z0ZPZ0Z O0M0APM0 right but we both missed the tac- 0Z0ZBZPO tics that the computer immediately Z0SQZRJ0 shows 22....Nxd5 The point is that after 23. exd5 then black can take on e3 23....Rxe3. I dismissed 22.... Instead of 13. Rc1 it was better to Nxd5 on the grounds that the queen play 13. dxe6. Then white could captures on d5 attacking the rook of have played with the advantage of a8. What I didn't realize is that af- space incorporating moves such as ter 23. Qxd5 Bxb2 24. Qxa8 the f4, and b4. It would be difficult for queen is trapped after 24....Nb6. black to advance any of the pawns ranging from the a to the e file with- So 22. Nb2 is a mistake that looses out creating weaknesses. a pawn and black's next move is a mistake that misses the opportunity After the move 14. f3 white has of winning a pawn. to be alert to tactics involving the potential capture of Rxe3. This is not obvious now but it could have 22. Ne5 23. Nc4 N×c4 been a decisive factor later on in this 24. B×c4 Bd7 25. Qd3 Bb5 game. rZ0ZrZkZ Q N Q B Z0l0Zpa0 18. a4 b6 19. d1 g7 pZ0o0mpZ 20. Qd2 Nbd7 21. Na4 h5 ZboPZ0Zp 22. Nb2 0ZBZPZ0Z O0ZQAPM0 rZbZrZkZ 0Z0Z0ZPO Z0lnZpa0 Z0S0ZRJ0 pZ0o0mpZ Z0oPZ0Zp 0Z0ZPZ0Z The last move is a standard O0Z0APM0 manuever that occurs often in the 0M0LBZPO Benoni. When (or if) white cap- Z0S0ZRJ0 tures on b5 then the rook from a8 attacks the pawn of a3. White pursued an interesting plan of improving the knight from c3 to 26. Bf4 Nd7 27. B×b5 a×b5 c4. But there is a problem with 28. Q×b5 R×a3 29. Rc2 Rea8 4 30. Rfc1 33. Qc6 Qd8 rZ0Z0ZkZ 0s0l0ZkZ Z0lnZpa0 Z0Z0ZpZ0 0Z0o0ZpZ 0ZQo0ZpZ ZQoPZ0Zp Z0oPa0Zp 0Z0ZPA0Z 0Z0ZPZ0Z s0Z0ZPM0 s0Z0ZPZ0 0ZRZ0ZPO 0ZRZNZPO Z0S0Z0J0 Z0S0Z0J0 Andrew and I agreed that white did not play the rooks efficiently. Now To 33. Qc4 I had prepared 33... black activates the knight and black Qa5 and 34. Nc3 is not good be- pieces are better placed than black cause of certain attacks that start pieces. with 34....Rb4. After 33. Qc6 the white queen gets trapped. 30. Ne5 31. B×e5 B×e5 B R 32. Ne2 Rb8 34. f4 g7 35. ×c5 d×c5 36. Q×c5 Ra2 37. Nc3 B×c3 Q Q + K Q 0s0Z0ZkZ 38. ×c3 b6 39. h1 f2 Z0l0ZpZ0 0Z0o0ZpZ 0s0Z0ZkZ ZQoPa0Zp Z0Z0ZpZ0 0Z0ZPZ0Z 0Z0Z0ZpZ s0Z0ZPZ0 Z0ZPZ0Zp 0ZRZNZPO 0Z0ZPO0Z Z0S0Z0J0 Z0L0Z0Z0 rZ0Z0lPO White's knight on g3 was not doing Z0S0Z0ZK much so Andrew tries to bring it to the queen side. Unfortunately for Now a mate in a few moves is forced. him the knight on e2 is on the way of the queen which is made clear by Q Q R R the move 32. ... Rb8. 40. g3 c2 41. e1 b1 0-1 5 Hoffman, Chris (832) July Knockout Swiss 2018 Jegadeeswaran, Yogahari (966) Nimzovitsch - Larsen Opening { A01 rZblrZkZ B N o0o0Zpop 1. b3 d5 2. b2 c6 3. e3 e5 0ZnZ0Z0Z 4. d3 Nf6 5. Nf3 d4 6. e×d4 e×d4 ZpZnZ0Z0 7. Be2 Bb4+ 0ZNZ0Z0Z OPoPZNZ0 rZblkZ0s 0ZPZBOPO opo0Zpop S0ZQS0J0 0ZnZ0m0Z Z0Z0Z0Z0 0a0o0Z0Z Chris now would loose the e pawn if ZPZPZNZ0 he plays 14. Ne3. But it seems that PAPZBOPO he did not notice that he could have SNZQJ0ZR saved the knight that way. With his move he looses the knight. Yogahari has developed nicely his pieces and obtained space advan- 14. d4 b×c4 15. b×c4 Nf4 tage. 16. Qc1 N R 8. bd2 0{0 9. 0{0 e8 10. a3 rZblrZkZ Bc3 11. B×c3 d×c3 12. Nc4 Nd5 o0o0Zpop 0ZnZ0Z0Z rZblrZkZ Z0Z0Z0Z0 opo0Zpop 0ZPO0m0Z 0ZnZ0Z0Z O0o0ZNZ0 Z0ZnZ0Z0 0ZPZBOPO 0ZNZ0Z0Z S0L0S0J0 OPoPZNZ0 0ZPZBOPO S0ZQZRJ0 Now Chris looses not the bishop but a whole rook because of the follow- Yogahari continues to improve his ing fork. After a few moves Chris pieces. Now he is threatening to win will resign. a pawn with the attack b7 - b5. 16. N×e2+ 17. R×e2 R×e2 13. Re1 b5 18. d5 Ne5 19. Ng5 h6 20. Nh3 6 B×h3 21. g×h3 Qh4 22. Qf1 Rd2 25. Qc2 Q + K R Q g5 23. h1 ×c2 24. d1 0-1 7 David Herscovici has provided some comments to his game with Suhas. I have inserted some of his comments in blue. Kodali, Suhas (2100) July Knockout Swiss 2018 Herscovici, David (2117) Sicilian - Dragon { B70 0Zrl0skZ N opZ0opap 1. e4 c5 2. f3 d6 3. d4 c×d4 0Z0obmpZ 4. N×d4 Nf6 5. Nc3 g6 6. Be2 m0Z0Z0A0 Nc6 7. 0{0 Bg7 8. Nb3 0{0 0Z0ZPO0Z ZNM0Z0Z0 POPZBZPO S0ZQZRZK rZbl0skZ opZ0opap After the game Suhas, David, Rick, 0Zno0mpZ and other players analyzed the game Z0Z0Z0Z0 thoroughly. Unfortunately I missed 0Z0ZPZ0Z their comments regarding this po- ZNM0Z0Z0 sition. This position is studied in POPZBOPO S0AQZRJ0 the book of Gufeld and Stetsko on the Sicilian Dragon. In my opin- ion black has equalized. The crit- ical moves 11. e5 and 11. f5 have been thoroughly analyzed. Gufeld This position is very similar to the and Stetsko point out that at this position in Mario Guevara { Suhas point black is threatening not only Kodali from the previous round. to jump to c4 with the knight but There the game started as an En- also the exchange sacrifice Rxc3 glish opening but the treatment the that would be good is black can players gave was the one of a Sicil- get the e pawn for it and damage ian dragon with the colors reversed.
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