| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 26. J Cooper vs M Pein |
| 1-0 | 95 |
1980 |
BCF-ch | D87 Grunfeld, Exchange |
| 27. M Pein vs I R Watson |
| 1-0 | 23 |
1980 |
BCF-ch | A40 Queen's Pawn Game |
| 28. M Pein vs Popovych |
| 0-1 | 63 |
1982 |
Manchester Benedictine op | A58 Benko Gambit |
| 29. M Pein vs H Westerinen |
| ½-½ | 20 |
1982 |
London Lewisham op 2nd | E70 King's Indian |
| 30. D King vs M Pein |
| 0-1 | 42 |
1982 |
Manchester Benedictine op | B08 Pirc, Classical |
| 31. M Pein vs A Martin |
| 1-0 | 47 |
1982 |
London Lewisham op 2nd | E90 King's Indian |
| 32. M Pein vs G Forintos |
| 0-1 | 42 |
1982 |
Manchester Benedictine op | A34 English, Symmetrical |
| 33. R Holmes vs M Pein |
| 0-1 | 36 |
1982 |
Manchester Benedictine op | A00 Uncommon Opening |
| 34. M Pein vs H Murphy |
| 1-0 | 37 |
1984 |
Lewisham op | E21 Nimzo-Indian, Three Knights |
| 35. M Pein vs Shutler |
| 1-0 | 39 |
1984 |
corr | D43 Queen's Gambit Declined Semi-Slav |
| 36. M Pein vs DeFirmian |
| 1-0 | 54 |
1984 |
Lloyds Bank op 08th | A37 English, Symmetrical |
| 37. M Pein vs R Bellin |
| ½-½ | 30 |
1984 |
Lewisham op | B03 Alekhine's Defense |
| 38. M Pein vs W Huisl |
| 1-0 | 23 |
1984 |
Lugano op | A80 Dutch |
| 39. M Pein vs M Orr |
| 0-1 | 42 |
1984 |
Lewisham op | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 40. M Pein vs G J De Boer |
| 1-0 | 33 |
1984 |
Lewisham op | A07 King's Indian Attack |
| 41. M Pein vs S Jackson |
| ½-½ | 52 |
1985 |
Commonwealth-ch 3rd | A46 Queen's Pawn Game |
| 42. M Pein vs J de Wit |
| ½-½ | 27 |
1985 |
London NWYM | D86 Grunfeld, Exchange |
| 43. M Pein vs G Morrison |
| 1-0 | 36 |
1985 |
London NWYM | E49 Nimzo-Indian, 4.e3, Botvinnik System |
| 44. M Pein vs A J Whiteley |
| ½-½ | 21 |
1985 |
London NWYM | E60 King's Indian Defense |
| 45. M Pein vs G Botterill |
| ½-½ | 28 |
1985 |
London NWYM | D20 Queen's Gambit Accepted |
| 46. M Pein vs B Thipsay |
 | 1-0 | 22 |
1985 |
Commonwealth-ch 3rd | D34 Queen's Gambit Declined, Tarrasch |
| 47. M Pein vs N Bradbury |
| 0-1 | 36 |
1985 |
London NWYM | A39 English, Symmetrical, Main line with d4 |
| 48. M Pein vs C Garcia Palermo |
| ½-½ | 14 |
1986 |
OHRA-B | D24 Queen's Gambit Accepted |
| 49. M Pein vs Zsuzsa Polgar |
| 0-1 | 35 |
1986 |
New York | D21 Queen's Gambit Accepted |
| 50. M Pein vs W Schoen |
| ½-½ | 44 |
1986 |
Lloyds Bank op 10th | D43 Queen's Gambit Declined Semi-Slav |