Centipawn Analysis:
Schaffarth Peter: 7 => Average=0.07
Roessig J: 9 => Average=0.09
Dally Hans Peter: 11 => Average=0.11
Nickl Klaus: 12 => Average=0.12
Wieckert Martin: 14 => Average=0.14
Pick Stepan: 17 => Average=0.17
Meggers Eric: 19 => Average=0.19
Valvo Michael Joseph: 19/21 => Average=0.19
De Fotis Gregory: 20 => Average=0.20
De Jong Peter JJ: 16/24/33 => Average=0.21
Foguelman Alberto: 22 => Average=0.22
Van den Berg Ad: 19/23/33/26 => Average=0.24
Ree Hans: 23/29 => Average=0.25
Ruthenberg Helmut: 25 => Average=0.25
Fedorowicz John P: 25 => Average=0.25
Comp Almeria: 6/51 => Average=0.26
Hegeler Anja: 27 => Average=0.27
Ligterink Gert: 29/31/26 => Average=0.28
Kasparov Garry: 29/39/20 => Average=0.29
Garcia Raimundo: 29 => Average=0.29
Sundin Thommy: 30 => Average=0.30
Herrmann M: 30 => Average=0.30
Scholz Peter: 30 => Average=0.30
Chubak: 31 => Average=0.31
Rubinetti Jorge Alberto: 33 => Average=0.33
Bronstein Luis Marcos: 34 => Average=0.34
Chapa Eric: 34 => Average=0.34
Amigo Roman Pedro: 35 => Average=0.35
Jongsma Alexander: 31/16/33/18/87 => Average=0.35
Eberlein Wolfgang: 35 => Average=0.35
Rohde Michael A: 20/53/26/47 => Average=0.36
Dzindzichashvili Roman: 36 => Average=0.36
Oslick Frank: 37 => Average=0.37
Van der Vliet Fredrik: 44/30/29/27/78 => Average=0.39
Porlouis: 40 => Average=0.40
Ginsburg Mark: 33/52 => Average=0.42
Hautz W: 42 => Average=0.42
Panno Oscar: 43 => Average=0.43
Dubisch Ralph: 43 => Average=0.43
Ivanov Igor Vasilievich: 43 => Average=0.43
Gilruth Peter: 44 => Average=0.44
Barlay Imre: 45 => Average=0.45
Gulko Boris F: 36/46/61/41 => Average=0.45
Comp Mephisto 16: 25/61/66 => Average=0.46
Sonntag Hans Hubert: 46 => Average=0.46
Comp Almeria 32: 69/13 => Average=0.46
Bakker Piet: 37/71/30 => Average=0.47
Tudjman V: 40/58/68/25 => Average=0.48
Blumenberg Walter: 49 => Average=0.49
Voortmeijer Ed: 40/57/76/15 => Average=0.49
Comp Novag Turbo X: 51 => Average=0.51
Comp Mephisto Lyon: 72/17/28/30/47/16/75/29/61/72/104/187/14/38/39/65/9 => Average=0.51
Cooke Eric: 51 => Average=0.51
Van der Laan Dinard: 51/46/75/32 => Average=0.51
Renet Olivier: 42/70 => Average=0.51
Comp Mach III: 61/88/23/41/33 => Average=0.52
Preuschoff Michael: 52 => Average=0.52
Alburt Lev O: 58/78/49/6 => Average=0.52
Pam Max: 70/73/51/34/13 => Average=0.52
Wagenaar Ron: 68/47/62/53/16 => Average=0.52
Comp Mach IV+: 33/89/49/42 => Average=0.53
Comp Deep Thought: 37/114/31/84/78/53/61/31/69/80/36/29/23/80/68/22/68/46/41/17/30/24/44 => Average=0.53
Molina Martin Luis Miguel: 55 => Average=0.55
Schill D: 56 => Average=0.56
Dlugy Maxim: 59/73/53/52/75/50/25 => Average=0.56
Loewenthal Gunther: 68/26/37/42/114 => Average=0.57
Byrne Robert Eugene: 56/75/24/67 => Average=0.57
Voorn Martin: 39/88/57/58/44 => Average=0.57
Comp Chiptest: 51/77/64/83/65/29/44/29/60 => Average=0.58
Collett John: 58 => Average=0.58
Takemoto Naoko: 58 => Average=0.58
Verbaan Bart: 79/69/52/4 => Average=0.58
Comp Galileo II: 88/80/43/39/123/36/0/12 => Average=0.59
Comp Quest: 43/57/91/71/50 => Average=0.60
Van der Wiel John: 97/6 => Average=0.60
Comp Mephisto Portorose: 52/72/71/65/36/68/82/41/123/28/41/26/18/129/85 => Average=0.61
Klotz Stefan: 61 => Average=0.61
Izumikawa Burt: 62 => Average=0.62
Mays Stefan: 62 => Average=0.62
Leers Fischer Hans: 62 => Average=0.62
Wolf William: 62 => Average=0.62
Comp Mach IV: 89/39/36/95/58/60 => Average=0.63
Comp Novag Turbo: 73/52 => Average=0.64
Wind Michiel A: 64 => Average=0.64
Peters Jack: 94/30 => Average=0.64
Comp SuperExpert B: 103/48/46/32 => Average=0.65
Comp Hitech: 68/66/40/48/93/90/102/53/54/31 => Average=0.66
Comp Novag B6: 66 => Average=0.66
Grefe John Alan: 65/68 => Average=0.66
Stoeckmann Helmut: 66 => Average=0.66
Sobrino Garcia Raul: 66 => Average=0.66
Birens Eric Andre: 67 => Average=0.67
Hengelbrock Joachim: 67 => Average=0.67
Comp Mephisto Polgar: 67 => Average=0.67
Comp Novag Super Exp I: 149/94/9/54/36/25 => Average=0.68
Comp Mephisto 32: 67/71/91/31 => Average=0.68
Bielicki Carlos: 69 => Average=0.69
Comp Mephisto Almeria: 17/95/39/81/103/93/69/98/66/87/60/33/113/26 => Average=0.69
Comp Fidelity Mach 3: 89/57/25 => Average=0.69
Calvo Sanchez Jose Maria: 71 => Average=0.71
McCambridge Vincent: 80/84/36 => Average=0.71
Kieboom Bert: 91/55/109/17 => Average=0.72
Becher Helmut: 72 => Average=0.72
Rossetto Hector: 72 => Average=0.72
Straeter Timo: 72 => Average=0.72
Comp The King: 51/123/48/70 => Average=0.73
Djuretanovic Ivan: 73 => Average=0.73
Comp CXG Dominator: 122/95/41/38/80/29 => Average=0.74
Miles Anthony John: 75 => Average=0.75
Levy David Neil Lawrence: 85/61/80/79 => Average=0.77
Rek Krzysztof: 92/84/75/22/112 => Average=0.77
Comp Novag 01: 74/82/41/122 => Average=0.78
Comp Galileo I: 96/96/32/80 => Average=0.78
Pond Greg: 79 => Average=0.79
Daverkausen Bernd: 79 => Average=0.79
Comp Chessmate: 110/46 => Average=0.79
Comp Novag 02: 119/24/87/74/109 => Average=0.81
Arndt Stefan: 82 => Average=0.82
Arlt Klaus: 84 => Average=0.84
Comp Kallisto: 98/121/32/132/30 => Average=0.85
Comp CC Machine: 133/53/59 => Average=0.85
Comp Dappet: 128/50/80/91 => Average=0.87
Gieseler Jens Christian: 91 => Average=0.91
Mach Holger: 92 => Average=0.92
Apicella Manuel: 131/29 => Average=0.93
Pytel Krzysztof: 94 => Average=0.94
Comp Mephisto Mondial II: 81/155/84/50 => Average=0.96
Chiu Herman B: 96 => Average=0.96
Comp Phantom: 111/98/78/125/77 => Average=0.98
Sabados Joakim: 100 => Average=1.00
Palos Osman: 101 => Average=1.01
Comp Sfinx: 125/85/76/115 => Average=1.03
Bajusz Gyorgy: 110 => Average=1.10
Boehnke Martin: 111 => Average=1.11
Velasco Valentin Leopoldo: 111 => Average=1.11
Rausch Ralf: 113 => Average=1.13
Monson Bruce: 120/102 => Average=1.13
Rodriguez Izquierdo Benjamin: 115 => Average=1.15
Schneider Peter: 122 => Average=1.22
Madl Ildiko: 124 => Average=1.24
Hidalgo Pascual Victor: 137 => Average=1.37
Barnickel Josef: 138 => Average=1.38
Gomez Velasco Julio: 139 => Average=1.39
Comp Sargon: 141 => Average=1.41
Garcia Manteca Eduardo: 148 => Average=1.48
Quintana Rodriguez Eugenio: 150 => Average=1.50
Comp Super Constellation: 169 => Average=1.69
Van Parreren Hanneke: 178 => Average=1.78
Comp Chessmaster 2100: 200 => Average=2.00
Game Analysis:
[pgn][Event "American op"]
[Site "Los Angeles"]
[Date "1989.??.??"]
[Round "2"]
[White "Comp Mephisto Lyon"]
[Black "Ivanov, Igor Vasilievich"]
[Result "1-0"]
[ECO "A35"]
[BlackElo "2515"]
[Annotator "Tactical Analysis 5.3 (5s)"]
[PlyCount "83"]
[EventDate "1989.11.23"]
[EventType "swiss"]
[EventRounds "8"]
[EventCountry "USA"]
[SourceTitle "EXT 1997"]
[Source "ChessBase"]
[SourceDate "1996.11.15"]
[SourceVersion "1"]
[SourceVersionDate "1996.11.15"]
[SourceQuality "1"]
1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. Nf3 cxd4 5. Nxd4 Nc6 6. e3 Nf6 7. Nc2 {A35: Symmetrical English: 2 Nc3 Nc6 3 Nf3.} b6 8. Be2 {[#]} Bb7 $146 ({Predecessor:} 8... Ba6 9. e4 Qc8 10. Ne3 Na5 11. Qa4 h5 12. h3 O-O 13. O-O Re8 14. Rb1 d6 {½-½ (45) Linqvist,G-Eisenmann,W ICCF corr 1988}) 9. O-O {The position is equal.} Rc8 10. Bf3 ({White should play} 10. b3 $14) 10... Ba6 (10... h5 $15) 11. b3 $14 Ne5 12. Bb2 Nxf3+ (12... O-O $14) 13. Qxf3 $16 {Hoping for Nb4.} Rc5 (13... Rb8 $16) 14. Nd5 ({Better is} 14. Nb4 $18 Rf5 15. Qe2) 14... Rxd5 $1 $11 15. cxd5 Bxf1 16. Rxf1 O-O 17. d6 {Prevents Qc7.} e6 18. e4 $36 {White has some pressure.} Ne8 (18... Nh5 $11 {deserves consideration.} 19. Bxg7 Nxg7) 19. Bxg7 $14 Kxg7 {[#]} (19... Nxg7 $14 20. Ne3 Qa8) 20. Qc3+ $1 $16 Qf6 (20... Nf6 $142) 21. e5 {White is more active.} Qf4 (21... Qd8 $16 {was necessary.}) 22. g3 (22. Rd1 $18 {and White stays clearly on top.}) 22... Qe4 23. Ne3 f6 (23... Kg8 $16 {was called for.}) 24. Qc8 $18 Nxd6 25. exf6+ (25. Qxd7+ Nf7 $14) 25... Rxf6 26. Qxd7+ Nf7 27. Qxa7 h5 {[#]} 28. Rd1 $2 (28. Qxb6 Ng5 29. h4 Nf3+ 30. Kg2 Nxh4+ 31. Kh3 Nf3 32. Qc7+ (32. Qd8 $2 h4 $19) 32... Rf7 $15) (28. h4 $1 $18) 28... h4 $1 $14 29. Qxb6 (29. Qd7 $14) 29... Ng5 $11 {( -> ...Nh3+)} 30. Kf1 {Black must now prevent Qa7+.} hxg3 31. hxg3 {Chess con chili.} Qf3 32. Rd7+ Kh6 33. Nd1 {Strongly threatening Qe3.} Ne4 $2 {Black cannot hold the game after this.} (33... Qh1+ 34. Ke2 $16) (33... Qxg3 $1 $14 34. Qd8 Qh3+ 35. Ke2 (35. Ke1 Nf3+ 36. Ke2 Qf5 $11) 35... Qg4+ 36. Kd2 Ne4+ 37. Kc2 Qf5) 34. Kg1 $18 {White is clearly winning.} Ng5 35. Qd4 Nh3+ 36. Kf1 {Qh4+ is the strong threat.} (36. Kh2 Nxf2 37. Qh4+ Qh5 $18) 36... g5 {Prevents Qh4+.} 37. Qd3 Qh1+ 38. Ke2 Rf5 39. Qc3 {White wants to mate with Qg7+.} Ng1+ 40. Kd2 Re5 41. Ne3 {Intending Ng4+ and mate.} ({Avoid the trap} 41. Rh7+ $2 Kxh7 42. Ne3 (42. Qc7+ $2 Kg6 $19) 42... Nf3+ 43. Ke2 Re4 $19) 41... Qe4 {Against Ng4+} 42. Qc8 {Weighted Error Value: White=0.29 (precise) /Black=0.41} ({Not} 42. Ng4+ $2 Qxg4 43. Kc2 Qf5+ 44. Kb2 Nf3 $19) 1-0
[/pgn]
Igor Vasilyevich Ivanov
Country Soviet Union, Canada
Born January 8, 1947
Leningrad, RSFSR, USSR
Died November 17, 2005 (aged 58)
St. George, Utah, United States
Title Grandmaster (2005)
Peak rating 2550 (January 1984)
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