[Event "U.S. Open"] [Site "?"] [Date "1983.08"] [Round "1"] [White "Novag Constellation-X"] [Black "Simon, Jerry (2207)"] [Result "1-0"] [ECO "A29"] [BlackElo "2207"] [PlyCount "109"] 1. c4 e5 2. Nc3 Nc6 3. Nf3 Nf6 4. g3 d6 {A solid but passive move which took computer out of its book. Usual moves are 4...Bb4 an 4...d5. A solid but passive move which took computer out of its book. Usual moves are 4...Bb4 an 4. ..d5.} 5. Bg2 Be6 6. d3 Be7 7. O-O Qc8 8. Qb3 {Constellation prevents black's planned bishop trade with 8...Bh3.} O-O 9. Nd5 $1 {A useful centralization. If black plays Bxd5, white has play on the half-open c-file after cxd5. With this an its next move, Constellation-X demonstrates some understanding of pawn structure play.} Bd8 10. Bg5 Rb8 11. Nxf6+ gxf6 12. Bh6 Re8 13. Qc3 Bh3 14. Rac1 Bxg2 15. Kxg2 Qg4 $6 {More sound was 15...f5 here.} 16. Bd2 f5 17. h3 Qh5 18. e3 Re6 {Better was 18...Bf6.} 19. d4 {Constellation-X completes its planned break, althrough with 19...ed 20. ed Re4 black would have some play.} e4 $2 20. Ng1 Rg6 21. f3 $1 Bh4 22. Ne2 Bg5 23. Nf4 $1 {The N must be removed, when black will soon suffer from his weaknesses on the dark squares.} Bxf4 24. exf4 Re8 25. fxe4 Rxe4 {Black tries to press the attack.} 26. Rce1 Re2+ { Better was 26...Th6.} 27. Rf2 Rxf2+ 28. Kxf2 Qxh3 {Black has played an intuitive piece sarcrifice based upon the exposed position of the WK; but now, since deep and precise calculation are the order of the day, Constellation-X must be winning.} 29. Re8+ Kg7 30. d5+ Kh6 31. dxc6 Qh2+ 32. Kf1 Rxg3 33. Be3 $1 {The only move (since 33. Qxg3 Qxg3 34. cxb7 allows Qf3+ where black wins), and now the WK escapes.} Qh1+ 34. Ke2 Qh5+ 35. Kd3 bxc6 36. Qf6+ Qg6 37. Qh4+ Kg7 38. Qd8 Kh6 39. Qxc7 {White now has an easiliy won game.} d5 40. Qxa7 dxc4+ 41. Kxc4 Rg2 42. Qd4 Rc2+ 43. Kb3 c5 44. Qd5 Rh2 45. Qxc5 Rh3 46. Kc2 Rh2+ 47. Bd2 Qg2 48. Qf8+ Kh5 49. Qxf7+ Kh4 50. Qe7+ Kh5 51. Qxh7+ Kg4 52. Qg7+ Kf3 53. Qc3+ Kf2 54. Qe3+ Kf1 55. Qe1# 1-0your web browser and/or your host do not support iframes as required to display the chessboard