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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Geller vs Krogius |
| ½-½ | 24 |
1959 |
Tbilisi | D42 Queen's Gambit Declined, Semi-Tarrasch, 7.Bd3 |
| 2. Averbakh vs Krogius |
| ½-½ | 74 |
1960 |
URS-ch27 | D42 Queen's Gambit Declined, Semi-Tarrasch, 7.Bd3 |
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Secrets of Opening Surprises
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