| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. I Firnhaber vs P van der Houwen |
| ½-½ | 72 | 2004 | W-ch28 sf06 email | C92 Ruy Lopez, Closed |
| 27. T Murray vs I Firnhaber |
| 1-0 | 62 | 2007 | 22nd Correspondence World Championship | C78 Ruy Lopez |
| 28. J van Oosterom vs I Firnhaber |
| 1-0 | 61 | 2007 | 22nd Correspondence World Championship | D43 Queen's Gambit Declined Semi-Slav |
| 29. W Kurth vs I Firnhaber |
| ½-½ | 40 | 2007 | 22nd Correspondence World Championship | D45 Queen's Gambit Declined Semi-Slav |
| 30. S Mikeshin vs I Firnhaber |
| ½-½ | 34 | 2007 | 22nd Correspondence World Championship | D43 Queen's Gambit Declined Semi-Slav |
| 31. I Firnhaber vs A Dronov |
| ½-½ | 21 | 2007 | 22nd Correspondence World Championship | B90 Sicilian, Najdorf |
| 32. I Firnhaber vs T Sasvari |
| ½-½ | 36 | 2007 | 22nd Correspondence World Championship | B90 Sicilian, Najdorf |
| 33. I Firnhaber vs O Buraschi |
| ½-½ | 28 | 2007 | 22nd Correspondence World Championship | B90 Sicilian, Najdorf |
| 34. I Firnhaber vs M Barbosa de Oliveira |
| ½-½ | 34 | 2007 | 22nd Correspondence World Championship | B78 Sicilian, Dragon, Yugoslav Attack, 10.castle long |
| 35. I Firnhaber vs P Diez de Rivera |
| ½-½ | 64 | 2007 | 22nd Correspondence World Championship | B32 Sicilian |
| 36. I Firnhaber vs C A Blanco Gramajo |
| ½-½ | 32 | 2007 | 22nd Correspondence World Championship | B09 Pirc, Austrian Attack |
| 37. D Vrkoc vs I Firnhaber |
| 1-0 | 51 | 2007 | 22nd Correspondence World Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 38. I Firnhaber vs L Machycek |
| ½-½ | 46 | 2007 | 22nd Correspondence World Championship | B03 Alekhine's Defense |
| 39. I Firnhaber vs R Holmberg |
| 1-0 | 53 | 2007 | 22nd Correspondence World Championship | C14 French, Classical |
| 40. R Kukk vs I Firnhaber |
| ½-½ | 52 | 2007 | 22nd Correspondence World Championship | C78 Ruy Lopez |
| 41. J Buecker vs I Firnhaber |
| 1-0 | 62 | 2007 | 22nd Correspondence World Championship | C84 Ruy Lopez, Closed |
| 42. D R Myers vs I Firnhaber |
| ½-½ | 20 | 2007 | 22nd Correspondence World Championship | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 43. J Zapletal vs I Firnhaber |
| ½-½ | 32 | 2011 | GER-chT9 LI-01 Br03 email | C78 Ruy Lopez |
| 44. J Pugh vs I Firnhaber |
| ½-½ | 41 | 2017 | EU/C/ct05 | B96 Sicilian, Najdorf |
| 45. I Firnhaber vs S Kloster |
| ½-½ | 34 | 2019 | Champion's League /A email | E01 Catalan, Closed |
Kibitzing
