Kvant

Rough automatic draft, low quality: expect mistakes and awkward wording. It will be replaced by a better translation. Original →

28

INVICIBLE
“MEPHISTO”

The next, seventh World Intermediate Microcomputer Chess Championship took place in Rome. For the first time, the computer crown was determined in a match tour. One team was represented by three copies of the famous three-time world champion “Mephisto” (author of the program P. Lang), the other - three copies of the less famous “Sphinx” (author of the program D. Levy). The composition lasted 6 rounds: three “Mephisto” (A, B and C) played two games with each of the three “Sphinks” (the same A, B and C) - white and black. The result turned out to be sad for the “Sphinks” - “Mephisto” won all six games, and won the championship crown for the fourth time in a row.

Simultaneously with the main compilation, another event took place in Rome, like a “small world championship”. Seven personal computer programs tested the round robin. The winner was the program “Psion Chesn”, the author of which is also P. Lang, the creator of “Mephisto”. It is curious that, despite his high scientific and computer level, Richard Lang does not belong to the category of “absent-minded professors” - in his projects between compiling a computer program, he successfully participates in marathon tasks.

Let us now present several examples of computer games in Roman tournaments, paying attention to the most intriguing episodes of the game.

“Mephisto A” - “Sphinca A”
English beginning

  1. c4 e5 2. Kc3 Kf6 3. Nf3 Kc6 4. e3 Ce7 5. d4 ed 6. K:d4 0—0 7. Cd3 Ke5 8. e4 Cc5 9. Ce2 Cb4 10. Cg5 h6 11. C:f6 C:c3+ 12. bc Q:f6 13. Kb5 Qg6 14. 0—0 Q:e4 15. K:c7 Rb8 16. Kb5 b6 17. Kd6 Qc6 18. Qd5 Kg6 19. Cf3 Qc5 20. Lad1 Ca6 21. Rfe1 Kf4 22. Q:c5 bc 23. Re7 Rb2 24. a4 Kg6 25. R:d7 Ke5 26. R:a7 C:c4 27. R:c4 K:c4 28. Rc7 Ra2 29. Cd5 R:a4 30. R:c5 Kb6 31. Cb3 Ra7 32. Rc6 Kd7 33. f3 Rb8 34. Cc2 Ra2 35. Cf5 Kf8 36. Je1 Jd8 37. Jc8 Jdd2 38. Ch3 g6 39. c4 Jdb2 40. c5 Kpg7 41. Jc7 Kh7 (correct 41… Ke6! 42. C:e6 R:g2+ with perpetual check) 42. f4 Kf6 43. c6 Kd5.

The activity of the black pieces compensates for the absence of tails, but “Mephisto” carries out an exchange combination, preserving the chances of success. 44. Rxf7+! Kp:f7 45. Ce6+ Kpf6 46. C:d5 Ra7 47. g3 Jd2 48. Cf3 Jaa2 49. Ce4 Jla4 50. Jc1 J:e4 51. c7 Jle8 52. c8Ф J:c8 53. J:c8 Jd1+ 54. Kpg2 Jd2+ 55. Kph3 h5 56. Jc1 Kpf5 57. Jh1 Jd3. The easiest way is to do nothing: 57… g5. Now strengthening Whites is crowned with success. 58. Kph4 Jd2 59. h3 Kpf6 60. g4 Jf2 61. Kpg3 Jc2 62. Jb1 Jc3+ 63. Kph4 Jc5 64. Jb6+ Kpf7 65. f5 gf 66. g5 Kpg7 67. Kp:h5 Jc7 68. h4 Ja7. The blacks dealt.

“Plimat” - “Cirus”
Sicilian reading

  1. e4 c5 2. Kf3 Kc6 3. d4 cd 4. K:d4 Kf6 5. Kc3 d6 6. Cg5 e6 7. Qd2 a6 8. 0—0—0 Cd7 9. f4 Ce7 10. Kf3 b5 11. e5 b4 12. ef bc 13. Q:c3 gf 14. Ch4 d5 15. Kpb1 0—0 16. Kd4 K:d4 17. Q:d4 Kph8 18. g4 a5 19. g5 Qc7 20. Jd3 Jfb8 21. Jb3.

Black’s position raises some concerns, but they unexpectedly find a way to form a draw. 21…e5! 22. Qxd5 Cc6 23. Qc4 Qd8 24. Jd3 Qb6 25. Jb3 Qd8 26. Jd3 Qb6 27. Jb3 Qd8. Nice.

“Psion Chesn” - “Plymat”
Queen’s Gambit

  1. d4 Kf6 2. c4 e6 3. Kc3 Cb4 4. Qc2 c5 5. dc 0—0 6. Kf3 Kc6 7. Cf4 C:c5 8. e3 d5 9. Jd1 Qa5 10. a3 Jd8.

With the rearrangement of moves, a well-known position arose, which was found even in world championship checkmates (bravo, computers!). In Bagno-78 (21st game) Karpov against Korchnoi the voter was 10… Le8, and in Merano-81 (11th game) - 10… Ce7. And the rook move to d8 has been encountered in practice more than once. The standard response is flawless.

“Chat” - “Kemplen”
Wrong start

  1. d4 f5 2. h3 Kf6 3. g4 fg 4. hg K:g4 5. Qd3 Kf6 6. J:h7 K:h7 7. Qg6×.

E. Ya. Gik