| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. A Hamming vs E Mulder |
| 1-0 | 38 | 1933 | Scheveningen | E40 Nimzo-Indian, 4.e3 |
| 27. E Mulder vs P van Hoorn |
| 0-1 | 24 | 1933 | Scheveningen | E40 Nimzo-Indian, 4.e3 |
| 28. E Mulder vs Maroczy |
| 0-1 | 51 | 1933 | Scheveningen | D69 Queen's Gambit Declined, Orthodox Defense, Classical, 13.de |
| 29. Flohr vs E Mulder |
 | 1-0 | 24 | 1933 | Scheveningen | A26 English |
| 30. E Mulder vs H Felderhof |
| 1-0 | 37 | 1933 | Scheveningen | D00 Queen's Pawn Game |
| 31. S Landau vs E Mulder |
| ½-½ | 37 | 1933 | Scheveningen | E46 Nimzo-Indian |
| 32. E Mulder vs Bogoljubov |
| 0-1 | 35 | 1933 | Scheveningen | E15 Queen's Indian |
| 33. G Oskam vs E Mulder |
| 0-1 | 13 | 1934 | NED Team-ch 35 | B05 Alekhine's Defense, Modern |
| 34. E Mulder vs Menchik |
| ½-½ | 27 | 1934 | VAS Easter | D52 Queen's Gambit Declined |
| 35. S Landau vs E Mulder |
| 0-1 | 33 | 1934 | VAS Christmas | E24 Nimzo-Indian, Samisch |
| 36. G Oskam vs E Mulder |
| ½-½ | 11 | 1936 | NED Team-ch 37 | B02 Alekhine's Defense |
| 37. E Mulder vs Fine |
| 0-1 | 38 | 1936 | Bussum | E23 Nimzo-Indian, Spielmann |
| 38. G van Doesburgh vs E Mulder |
| ½-½ | 16 | 1937 | Bussum-VAS | B02 Alekhine's Defense |
| 39. J A Polak vs E Mulder |
| 1-0 | 25 | 1938 | NED-ch prelim | A06 Reti Opening |
| 40. T ten Kate vs E Mulder |
| 0-1 | 50 | 1938 | NED-ch10 sf-A | B03 Alekhine's Defense |
| 41. E Mulder vs N Cortlever |
| 1-0 | 46 | 1938 | Dutch Championship | E60 King's Indian Defense |
| 42. Euwe vs E Mulder |
| ½-½ | 41 | 1938 | Dutch Championship | D48 Queen's Gambit Declined Semi-Slav, Meran |
| 43. J van den Bosch vs E Mulder |
| 1-0 | 38 | 1938 | Dutch Championship | B02 Alekhine's Defense |
| 44. T van Scheltinga vs E Mulder |
| ½-½ | 19 | 1938 | Dutch Championship | E18 Queen's Indian, Old Main line, 7.Nc3 |
| 45. A Vinken vs E Mulder |
| 1-0 | 32 | 1939 | LSB Competition | B03 Alekhine's Defense |
| 46. S Fazekas vs E Mulder |
| 1-0 | 63 | 1939 | Margate Premier Reserves B | A22 English |
| 47. E Mulder vs G van Doesburgh |
| 1-0 | 34 | 1939 | Margate Premier Reserves B | A13 English |
| 48. E Mulder vs F Parr |
| 0-1 | 23 | 1939 | Netherlands - England | E32 Nimzo-Indian, Classical |
| 49. F Parr vs E Mulder |
| ½-½ | 37 | 1939 | Netherlands - England | E40 Nimzo-Indian, 4.e3 |
| 50. C Vlagsma vs E Mulder |
| 1-0 | 43 | 1940 | Kamstra Cup | E40 Nimzo-Indian, 4.e3 |
Kibitzing
