Author: Shay Bushinsky
Date: 15:35:13 08/29/98
Yudasin vs Junior 5.0 ================= We have completed three interesting and exciting days of a match against international grandmaster Leonid Yudasin. The event took place in the luxurious Hyatt Regency hotel, Ein Bokek, the dead sea, Israel. The conclusion of the match was as follows: 1. Standard time control part (120/40 and 60/rest) 1.5 - 0.5 in favor of Yudasin 2. Rapid time control part (30/all) 2 - 2 draw 3. Unofficial blitz match (5/all) 4.5-1.5 in favor of Junior 5.0 We have only but appreciation to grandmaster Yudasin for taking the challenge and playing great chess against Junior. Yudasin, is not only an all round first class positional expert and tactician, but is a very spiritual person as well. He had taken the challenge beyond just another chess match to really try and investigate the differences between the human thought process in chess and the way computers play the game. Along the match, Yudasin seemed to have changed his mind in his effort to classify Junior as a chess playing entity. Indeed he reckoned that Junior 5.0 is of above 2500 playing strength. Though after the standard time control part, Yudasin felt that Junior is an improved tactical "brother" of his predecessor. It was after game 3 of the rapid match, Yudasin had recognized Junior's positional strengths as well. In his summation of the match, Yudasin felt that the result was justified. He believed that he is still slightly superior in the slower time controls. Yudasin tried to explain the difference in what he termed human's "second order of chess understanding" - the ability to appreciate when positional features are good and when the same features are bad - giving the example of Junior's central pawns in game 1 which were a disadvantage due to their relative weaknesses. Yudasin also thought that if computers would be given a "relative sense" e.g. would be able to adopt their game to the opponent's or to "bluff" sometimes, they would become extremely strong. All of the games were transmitted live over the ICC. The winning internet comment was from one of the observers who disagreed with us when we claimed that the dead sea is the lowest point on earth. He insisted that it is rather Washington D.C! From our point of view, as programmers, we felt that the match was very valuable. It exposed some obvious problems such as: Qb8, Bh8 and Bb7 in STC game 2 etc. but we felt that still the games were of high quality. Personally I liked game 3 of the rapid part where Yudasin tried a "sit and wait policy" and was positionally punished by Junior. I also can't stop admiring how Yudasin handled rapid game 4 where I'm sure that not many humans would of escaped Junior alive. A technical detail: Junior 5.0, soon to be released by Chessbase gmbh, ran on a Pentium 333Mhz utilizing 80MB of RAM. Thanks to everybody who helped us have this event. Special thanks to: Matthias Wuellenweber of Chessbase, Rinat Zukerman of Hyatt, Guy Zadik of Packared Bell and Andy McFarland of ICC and of course to grandmaster Leonid Yudasin and to Amir Ban my partner. We hope you enjoyed the event. For your convenience the match games are enclosed. The next event on Junior's agenda will take place Tuesday, September 8th. IGM Dov Zifroni will play a two game match against Junior. Meanwhile, best regards, -- Shay Bushinsky STC part [Event "ICC u 120 0 08/26/1998"] [Site "Internet Chess Club"] [Date "1998.08.26"] [Round "1.1"] [White "*Junior50"] [Black "*GMYudasin"] [Result "1/2-1/2"] [WhiteElo "0"] [BlackElo "0"] [ECO "A47"] [NIC "QP.06"] [LongECO "Queen's Indian defense"] 1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 4. c4 e6 5. Bd3 d5 6. b3 Bb4+ 7. Bd2 dxc4 8. bxc4 Bxd2+ 9. Nbxd2 c5 10. Nb3 cxd4 11. exd4 O-O 12. O-O Nc6 13. Re1 a5 14. a4 Nb4 15. Ne5 Nxd3 16. Qxd3 Nd7 17. Nd2 Nxe5 18. Rxe5 Qc7 19. Rh5 g6 20. Rh4 Rfd8 21. Rb1 Bc6 22. Ne4 Bxe4 23. Rxe4 Qc6 24. Qc2 Rac8 25. Rc1 f5 26. Rh4 g5 27. Rh5 Rxd4 28. Rxg5+ Kf8 29. Re1 Rxc4 30. Qb2 Rc3 31. g4 Qxa4 32. Qxb6 Qf4 33. h4 Rg3+ 34. fxg3 Qxg3+ 35. Kf1 Qh3+ 36. Kg1 Qg3+ {Game drawn by mutual agreement} 1/2-1/2 [Event "ICC 120 0 08/27/1998"] [Site "Internet Chess Club"] [Date "1998.08.27"] [Round "1.2"] [White "*Yudasin"] [Black "*Junior"] [Result "1-0"] [WhiteElo "0"] [BlackElo "0"] [ECO "B30"] [NIC "SI.31"] [LongECO "Sicilian: Nimzovich-Rossolimo attack (without ...d6)"] 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 4. O-O Nge7 5. Re1 a6 6. Bxc6 Nxc6 7. Nc3 Qc7 8. d4 cxd4 9. Nxd4 Bd6 10. Nxc6 bxc6 11. Qh5 Be5 12. Re3 Rb8 13. b3 g6 14. Qh4 d6 15. Rf3 Qa5 16. Bd2 Qa3 17. Rb1 h6 18. Rd3 a5 19. Qg4 h5 20. Qg5 h4 21. h3 Ba6 22. Rf3 Rh5 23. Qe3 Rb7 24. Qe1 d5 25. Bf4 Bh8 26. e5 Qb4 27. Na4 Bb5 28. c3 Qe7 29. Nb2 c5 30. c4 Bc6 31. Re3 d4 32. Re2 Ra7 33. Nd3 Ra8 34. f3 Bg7 35. a3 Bf8 36. Kh1 Qb7 37. Kh2 Qa6 38. Rc2 Qc8 39. Kh1 Qc7 40. Qf2 Rb8 41. Rcb2 Bb7 42. b4 cxb4 43. axb4 Qxc4 44. bxa5 Qxd3 45. Rxb7 Rxb7 46. Rxb7 Be7 47. Rb8+ Bd8 48. Qb2 Qf1+ 49. Kh2 Qa6 50. Bd2 {Black resigns} 1-0 Rapid part [Event "ICC u 30 0 08/28/1998"] [Site "Internet Chess Club"] [Date "1998.08.28"] [Round "2.1 "] [White "*Junior50"] [Black "*Yudasin"] [Result "1-0"] [WhiteElo "0"] [BlackElo "0"] [ECO "B42"] [NIC "SI.42"] [LongECO "Sicilian: Kan, Polugaievsky variation"] 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5 6. Nb3 Be7 7. Qg4 Bf6 8. O-O d6 9. Nc3 Nc6 10. Qg3 Nge7 11. Be2 O-O 12. Bf4 Bxc3 13. Qxc3 e5 14. Bg5 h6 15. Bh4 Qc7 16. Rad1 Be6 17. Rfe1 Rac8 18. Qd2 Ng6 19. Bg3 Rfd8 20. c4 a5 21. Bf1 a4 22. Nc1 Qb6 23. Re3 Nd4 24. Rc3 Rd7 25. Ne2 Bg4 26. Kh1 Qb4 27. f3 Nxe2 28. Bxe2 Be6 29. Ra3 Qxd2 30. Rxd2 Bxc4 31. Rc3 Rdc7 32. Rdc2 b5 33. b3 axb3 34. axb3 Bxe2 35. Rxc7 Rxc7 36. Rxc7 Bd1 37. b4 f6 38. Rc6 Be2 39. Rxd6 Kf7 40. Rd7+ Ne7 41. Bf2 {Black resigns} 1-0 [Event "ICC u 30 0 08/28/1998"] [Site "Internet Chess Club"] [Date "1998.08.28"] [Round "2.2"] [White "*Yudasin"] [Black "*Junior50"] [Result "1-0"] [WhiteElo "0"] [BlackElo "0"] [ECO "C55"] [NIC "IG.01"] [LongECO "Two knights defense (Modern bishop's opening)"] 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Be7 5. O-O O-O 6. Re1 d6 7. Bb3 a5 8. c3 Bg4 9. Nbd2 Qb8 10. a4 Qa7 11. h3 Bc8 12. Nf1 b6 13. Ng3 Kh8 14. d4 Qb7 15. Bg5 exd4 16. cxd4 h6 17. Bxf6 Bxf6 18. Bd5 Bd7 19. Rc1 b5 20. Qc2 Ra6 21. axb5 Qxb5 22. Bc4 Qb7 23. Bxa6 Qxa6 24. e5 Bd8 25. Qe2 Qxe2 26. Rxe2 d5 27. Rec2 Nb4 28. Rd2 c6 29. Ne2 Bf5 30. Ne1 Bg5 31. f4 Bd8 32. g4 Bh7 33. Kh2 Re8 34. Kg3 Bc7 35. h4 Kg8 36. h5 Kf8 37. Nc3 Rb8 38. Na4 Ke7 39. Nc5 Na2 40. Ra1 Nb4 41. f5 Rb5 42. Kf4 Bb6 43. Na4 Bd8 44. Nf3 Bg8 45. Rg1 Kf8 46. g5 hxg5+ 47. Nxg5 Be7 48. Nf3 Bh7 49. Ng5 Bg8 50. Rg3 Na6 51. Nf3 Rb3 52. Rdg2 Nb4 53. Ne1 Rxg3 54. Rxg3 Bh4 55. Nc5 Bxg3+ 56. Kxg3 Na2 57. Ned3 Bh7 58. Kf4 Ke7 59. Nb7 Nb4 60. Nxb4 axb4 61. Nc5 Bg8 62. Na6 b3 63. Nc5 Bh7 64. Nxb3 f6 65. e6 Bg8 66. Nc5 Bh7 67. Nd3 Kd6 68. Nf2 Bg8 69. Ng4 Ke7 70. Ne3 Ke8 {Black resigns} 1-0 [Event "ICC u 30 0 08/28/1998"] [Site "Internet Chess Club"] [Date "1998.08.28"] [Round "2.3"] [White "*Junior50"] [Black "*Yudasin"] [Result "1-0"] [WhiteElo "0"] [BlackElo "0"] [ECO "A00"] [NIC "VO.10"] [LongECO "Polish (Sokolsky) opening"] 1. b4 Nf6 2. Bb2 e6 3. Bc3 Nd5 4. b5 Nxc3 5. Nxc3 a6 6. a4 Be7 7. e4 O-O 8. Bd3 d5 9. Nf3 c5 10. bxc6 Nxc6 11. exd5 exd5 12. O-O Bf6 13. Qb1 Rb8 14. Re1 Be6 15. h3 g6 16. Qb2 Qc7 17. Qa3 Na5 18. Qb4 Nc6 19. Qa3 Rfd8 20. Rab1 Qd6 21. Qxd6 Rxd6 22. Ne2 Bd7 23. c3 Nd8 24. Bc2 Ne6 25. d4 Nd8 26. Bb3 Rc8 27. Ne5 Be6 28. Ba2 Rc7 29. Rb2 Kg7 30. Nd3 b6 31. Nb4 a5 32. Nd3 h5 33. Ne5 h4 34. Rb5 Be7 35. Reb1 f6 36. Ng4 Bf5 37. R1b2 Bd3 38. Rxd5 Rxd5 39. Bxd5 Ba3 40. Rb3 Bxe2 41. Rxa3 Nf7 42. Ne3 f5 43. Rb3 f4 44. Ng4 Bxg4 45. hxg4 Ng5 46. Kf1 Rd7 47. Bc6 Rd6 48. Rxb6 Kh6 49. Ra6 Ne4 50. d5 Nxc3 51. Rxa5 Ne4 52. f3 Nd2+ 53. Kf2 Nb3 54. Rb5 Nd4 55. Rb6 Rf6 56. a5 Rf7 57. Be8 Re7 58. Bxg6 Re2+ 59. Kf1 Ra2 {Black resigns} 1-0 [Event "ICC u 30 0 08/28/1998"] [Site "Internet Chess Club"] [Date "1998.08.28"] [Round "2.4"] [White "*Yudasin"] [Black "*Junior50"] [Result "1-0"] [WhiteElo "0"] [BlackElo "0"] [ECO "B01"] [NIC "SD.01"] [LongECO "Scandinavian (center counter) defense"] 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Bc4 Bf5 6. Nf3 e6 7. O-O c6 8. Bd2 Qb6 9. a4 Bd6 10. a5 Qc7 11. Re1 O-O 12. h3 Rd8 13. Nh4 Bh2+ 14. Kh1 Rxd4 15. Nxf5 exf5 16. Qe2 Nbd7 17. Be3 Rh4 18. Bg5 Rd4 19. a6 Be5 20. axb7 Qxb7 21. Bb3 h6 22. Be3 Rb4 23. Qf3 c5 24. Nd5 Rxb3 25. Nxf6+ Bxf6 26. cxb3 Qxf3 27. gxf3 Ne5 28. f4 Nd3 29. Re2 Rb8 30. Rd2 Rxb3 31. Ra3 Rxa3 32. bxa3 c4 33. Bxa7 Nxf4 34. Rd7 Nxh3 35. Rc7 c3 36. a4 Nf4 37. a5 Kh7 38. Rc4 Nd5 39. a6 f4 40. Bd4 Bxd4 41. Rxd4 Nb6 42. Rd6 Na8 43. Rc6 {Black resigns} 1-0
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