Game |
| Result | Moves |
Year | Event/Locale | Opening |
26. P B Cook vs B L Wilkinson |
| 0-1 | 18 | 1956 | British Championship | B74 Sicilian, Dragon, Classical |
27. W Broome vs P B Cook |
| 0-1 | 35 | 1956 | British Championship | D87 Grunfeld, Exchange |
28. P B Cook vs A Phillips |
| 0-1 | 37 | 1961 | British Championship | C92 Ruy Lopez, Closed |
29. B H Wood vs P B Cook |
| ½-½ | 43 | 1961 | British Championship | D98 Grunfeld, Russian |
30. P B Cook vs R Baxter |
| ½-½ | 55 | 1961 | British Championship | C14 French, Classical |
31. A Hollis vs P B Cook |
| 1-0 | 29 | 1961 | British Championship | D78 Neo-Grunfeld, 6.O-O c6 |
32. P B Cook vs S Reuben |
| 1-0 | 27 | 1961 | British Championship | B32 Sicilian |
33. G Bonner vs P B Cook |
| ½-½ | 31 | 1961 | British Championship | A16 English |
34. P B Cook vs J Ansell |
| ½-½ | 43 | 1961 | British Championship | C95 Ruy Lopez, Closed, Breyer |
35. O Hindle vs P B Cook |
| 1-0 | 57 | 1961 | British Championship | C99 Ruy Lopez, Closed, Chigorin, 12...cd |
36. P B Cook vs A Bernfield |
| 1-0 | 25 | 1961 | British Championship | B72 Sicilian, Dragon |
37. P B Cook vs A Y Green |
| 1-0 | 36 | 1961 | British Championship | C79 Ruy Lopez, Steinitz Defense Deferred |
38. J A Lawrence vs P B Cook |
| ½-½ | 50 | 1961 | British Championship | A07 King's Indian Attack |
39. P B Cook vs R G Wade |
| ½-½ | 22 | 1962 | British Championship | B74 Sicilian, Dragon, Classical |
40. R H Northage vs P B Cook |
| 0-1 | 33 | 1962 | British Championship | A07 King's Indian Attack |
41. P B Cook vs M J Haygarth |
| 0-1 | 45 | 1962 | British Championship | C76 Ruy Lopez, Modern Steinitz Defense, Fianchetto Variation |
42. M J Franklin vs P B Cook |
| 1-0 | 25 | 1962 | British Championship | A05 Reti Opening |
43. P B Cook vs J M Aitken |
 | 0-1 | 48 | 1962 | British Championship | C78 Ruy Lopez |
44. J Hawson vs P B Cook |
| ½-½ | 18 | 1962 | British Championship | D34 Queen's Gambit Declined, Tarrasch |
45. P B Cook vs G Abrahams |
| 0-1 | 55 | 1962 | British Championship | C97 Ruy Lopez, Closed, Chigorin |
46. J Eldridge vs P B Cook |
| ½-½ | 33 | 1962 | British Championship | A15 English |
47. J H Beaty vs P B Cook |
| 1-0 | 38 | 1962 | British Championship | C85 Ruy Lopez, Exchange Variation Doubly Deferred (DERLD) |
48. P B Cook vs E L Stuart |
| 0-1 | 37 | 1962 | British Championship | B84 Sicilian, Scheveningen |
49. P B Cook vs P Wallis |
| ½-½ | 37 | 1962 | British Championship | C17 French, Winawer, Advance |
50. D Wright vs P B Cook |
 | 1-0 | 27 | 1967 | BCF-ch Major op | A07 King's Indian Attack |