| page 2 of 6; games 26-50 of 132 |
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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. Kaplan vs S Tatai |
 | 1-0 | 24 |
1968 |
Malaga | B93 Sicilian, Najdorf, 6.f4 |
| 27. W Heidenfeld vs Kaplan |
| ½-½ | 44 |
1968 |
Lugano Olympiad | C49 Four Knights |
| 28. Pachman vs Kaplan |
| ½-½ | 43 |
1968 |
Puerto Rico | A73 Benoni, Classical, 9.O-O |
| 29. Kaplan vs Zuckerman |
| 0-1 | 46 |
1968 |
Malaga | B93 Sicilian, Najdorf, 6.f4 |
| 30. Kaplan vs Suetin |
| ½-½ | 40 |
1968 |
Hastings (England) | B48 Sicilian, Taimanov Variation |
| 31. Kaplan vs R Byrne |
| ½-½ | 45 |
1969 |
San Juan | B92 Sicilian, Najdorf, Opocensky Variation |
| 32. Larsen vs Kaplan |
| 0-1 | 34 |
1969 |
San Juan | E21 Nimzo-Indian, Three Knights |
| 33. Kaplan vs J Moles |
| ½-½ | 21 |
1969 |
Wch b20 group 1 | E99 King's Indian, Orthodox, Taimanov |
| 34. Kaplan vs Karpov |
| ½-½ | 20 |
1969 |
Stockholm-jr | C34 King's Gambit Accepted |
| 35. Kaplan vs Karpov |
| ½-½ | 20 |
1969 |
10, Stockholm Wch-jr fin | C38 King's Gambit Accepted |
| 36. Schmid vs Kaplan |
| ½-½ | 24 |
1969 |
San Juan | C67 Ruy Lopez |
| 37. Kaplan vs Keene |
| ½-½ | 11 |
1970 |
Olympiad | B08 Pirc, Classical |
| 38. Bobotsov vs Kaplan |
| 0-1 | 24 |
1970 |
Siegen ol (Men) qual-F | A61 Benoni |
| 39. Renato Naranja vs Kaplan |
| 1-0 | 28 |
1970 |
Siegen ol (Men) fin-C | D79 Neo-Grunfeld, 6.O-O, Main line |
| 40. L Day vs Kaplan |
| 0-1 | 47 |
1971 |
San Juan International | B25 Sicilian, Closed |
| 41. Kaplan vs J Moles |
| ½-½ | 31 |
1972 |
Skopje ol (Men) final-C | C19 French, Winawer, Advance |
| 42. Browne vs Kaplan |
| 1-0 | 24 |
1972 |
San Antonio (USA) | B54 Sicilian |
| 43. Kaplan vs Portisch |
| 0-1 | 55 |
1972 |
San Antonio | B84 Sicilian, Scheveningen |
| 44. Hort vs Kaplan |
| 1-0 | 36 |
1972 |
San Antonio | E77 King's Indian |
| 45. Karpov vs Kaplan |
| ½-½ | 35 |
1972 |
13, San Antonio | B32 Sicilian |
| 46. Kaplan vs Larsen |
| 0-1 | 56 |
1972 |
San Antonio | B16 Caro-Kann, Bronstein-Larsen Variation |
| 47. Kaplan vs Petrosian |
| ½-½ | 23 |
1972 |
San | B63 Sicilian, Richter-Rauzer Attack |
| 48. Kaplan vs Larry Evans |
| 1-0 | 41 |
1972 |
San Antonio | B42 Sicilian, Kan |
| 49. Kaplan vs Bobotsov |
| ½-½ | 31 |
1972 |
Skopje ol (Men) prel | B42 Sicilian, Kan |
| 50. Kaplan vs Saidy |
| ½-½ | 69 |
1972 |
San Antonio | B92 Sicilian, Najdorf, Opocensky Variation |
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| page 2 of 6; games 26-50 of 132 |
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