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| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Krogius vs Korchnoi |
 | 1-0 | 31 |
1956 |
Tbilisi | C05 French, Tarrasch |
| 2. Krogius vs Tolush |
| 1-0 | 55 |
1958 |
URS 25ch Riga | C05 French, Tarrasch |
| 3. Krogius vs Boleslavsky |
| 1-0 | 43 |
1958 |
URS 25ch Riga | C07 French, Tarrasch |
| 4. Krogius vs V Heuer |
| 0-1 | 41 |
1962 |
Leningrad | C09 French, Tarrasch, Open Variation, Main line |
| 5. Krogius vs B Goldenov |
| 1-0 | 25 |
1964 |
URS-ch32 | C07 French, Tarrasch |
| 6. Krogius vs Ivkov |
| ½-½ | 15 |
1968 |
Sarajevo | C09 French, Tarrasch, Open Variation, Main line |
| 7. Krogius vs Uhlmann |
| ½-½ | 21 |
1970 |
Hastings | C07 French, Tarrasch |
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Secrets of Opening Surprises
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