| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. T Kotanjian vs T Gelashvili |
| 1-0 | 52 |
2003 |
Batumi BCSA op | E32 Nimzo-Indian, Classical |
| 2. T Kotanjian vs G Sargissian |
 | 1-0 | 43 |
2005 |
Armenian Championship | E38 Nimzo-Indian, Classical, 4...c5 |
| 3. T Kotanjian vs K Asrian |
| ½-½ | 90 |
2005 |
Armenian Championship | E32 Nimzo-Indian, Classical |
| 4. T Kotanjian vs Dgebuadze |
| ½-½ | 42 |
2006 |
7th European Individual Championship | E32 Nimzo-Indian, Classical |
| 5. T Kotanjian vs F Sigalas |
| 1-0 | 31 |
2006 |
Acropolis Tournament | E34 Nimzo-Indian, Classical, Noa Variation |
| 6. T Kotanjian vs A Yegiazarian |
 | 1-0 | 35 |
2006 |
66th Armenian Championship | E35 Nimzo-Indian, Classical, Noa Variation, 5.cd ed |
| 7. T Kotanjian vs Zhu Chen |
| ½-½ | 40 |
2006 |
Acropolis Tournament | E32 Nimzo-Indian, Classical |
| 8. T Kotanjian vs H Melkumyan |
| ½-½ | 104 |
2006 |
Blue Sevan Tournament | E34 Nimzo-Indian, Classical, Noa Variation |
| 9. T Kotanjian vs M Gagunashvili |
| 0-1 | 38 |
2006 |
7th European Individual Championship | E32 Nimzo-Indian, Classical |
| 10. T Kotanjian vs A Yegiazarian |
| 1-0 | 53 |
2007 |
Armenian Championsip | E39 Nimzo-Indian, Classical, Pirc Variation |
| 11. T Kotanjian vs E Mochalov |
| 1-0 | 22 |
2007 |
European Club Cup | E51 Nimzo-Indian, 4.e3 |
| 12. T Kotanjian vs S Sievers |
| 1-0 | 52 |
2007 |
European Club Cup | E34 Nimzo-Indian, Classical, Noa Variation |
| 13. T Kotanjian vs Sutovsky |
 | 0-1 | 41 |
2007 |
European Individual Championships | E34 Nimzo-Indian, Classical, Noa Variation |
| 14. T Kotanjian vs K Asrian |
 | 0-1 | 101 |
2008 |
Armenian Championship | E34 Nimzo-Indian, Classical, Noa Variation |
| 15. T Kotanjian vs R Laxman |
| 1-0 | 28 |
2008 |
Dubai Open | E32 Nimzo-Indian, Classical |
| 16. T Kotanjian vs Yusupov |
 | 1-0 | 56 |
2008 |
Aeroflot Open | E34 Nimzo-Indian, Classical, Noa Variation |
| 17. T Kotanjian vs M Parligras |
| 0-1 | 82 |
2008 |
Aeroflot Open | E34 Nimzo-Indian, Classical, Noa Variation |
| 18. T Kotanjian vs A Chudinovskikh |
| ½-½ | 57 |
2009 |
10th European Individual Championship | E34 Nimzo-Indian, Classical, Noa Variation |
| 19. T Kotanjian vs Onischuk |
| 0-1 | 64 |
2009 |
Aeroflot Open | E32 Nimzo-Indian, Classical |
| 20. T Kotanjian vs Khalifman |
| 0-1 | 57 |
2009 |
10th European Individual Championship | E34 Nimzo-Indian, Classical, Noa Variation |
| 21. T Kotanjian vs S Kapnisis |
| 1-0 | 41 |
2009 |
10th European Individual Championship | E39 Nimzo-Indian, Classical, Pirc Variation |