| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. H Mas vs S Zagrebelny |
| ½-½ | 55 | 1997 | Jakarta op | B21 Sicilian, 2.f4 and 2.d4 |
| 2. H Mas vs I Novikov |
| ½-½ | 36 | 1997 | World Cities | B21 Sicilian, 2.f4 and 2.d4 |
| 3. H Mas vs M Spierings |
| 1-0 | 41 | 1997 | Groningen Open | B21 Sicilian, 2.f4 and 2.d4 |
| 4. H Mas vs M Ghorbani |
| 1-0 | 58 | 1998 | Asian Teams | B21 Sicilian, 2.f4 and 2.d4 |
| 5. H Mas vs D K Johansen |
| ½-½ | 87 | 1999 | Saintly Cup | B21 Sicilian, 2.f4 and 2.d4 |
| 6. H Mas vs Z Zhang |
| 0-1 | 45 | 1999 | Saintly Cup | B21 Sicilian, 2.f4 and 2.d4 |
| 7. H Mas vs M Aung Hlaing |
| ½-½ | 59 | 1999 | Yangon | B21 Sicilian, 2.f4 and 2.d4 |
| 8. H Mas vs Thein Dan Oo |
| 1-0 | 18 | 1999 | Yangon | B21 Sicilian, 2.f4 and 2.d4 |
| 9. H Mas vs J Liang |
| ½-½ | 12 | 1999 | Yangon | B21 Sicilian, 2.f4 and 2.d4 |
| 10. H Mas vs K Mak |
| 1-0 | 46 | 1999 | Asian Team Championship | B21 Sicilian, 2.f4 and 2.d4 |
| 11. H Mas vs Wynn Zaw Htun |
| ½-½ | 24 | 2000 | Penang Wah Seong IM | B21 Sicilian, 2.f4 and 2.d4 |
| 12. H Mas vs P Zhang |
| 0-1 | 30 | 2001 | Zhong Hong Real Estate Cup | B21 Sicilian, 2.f4 and 2.d4 |
| 13. H Mas vs Xu Yaping |
| ½-½ | 79 | 2001 | Zhong Hong Real Estate Cup | B21 Sicilian, 2.f4 and 2.d4 |
| 14. H Mas vs W Zili |
| ½-½ | 80 | 2001 | Zhong Hong Real Estate Cup | B21 Sicilian, 2.f4 and 2.d4 |
| 15. H Mas vs B Jiravorasuk |
 | 1-0 | 50 | 2001 | 1st Sea Chess TCh | B21 Sicilian, 2.f4 and 2.d4 |
| 16. H Mas vs R Nolte |
| ½-½ | 52 | 2007 | Malaysian Open Tt | B21 Sicilian, 2.f4 and 2.d4 |
| 17. H Mas vs H Nouri |
| 1-0 | 25 | 2007 | Malaysian Open Tt | B21 Sicilian, 2.f4 and 2.d4 |
| 18. H Mas vs S Kojima |
| 1-0 | 38 | 2008 | Malaysian Open | B21 Sicilian, 2.f4 and 2.d4 |
| 19. H Mas vs A Gupta |
| 0-1 | 35 | 2009 | 8th Asian Continental Chess Championship | B21 Sicilian, 2.f4 and 2.d4 |
| 20. H Mas vs D Gukesh |
| ½-½ | 20 | 2017 | 1st Puchong Friday IM Oct | B21 Sicilian, 2.f4 and 2.d4 |
Kibitzing
