Position after 20 moves of an Albin Counter Gambit.

21. c5 Bf8 22. Ng5 Nce7 23. Bc4+ Nd5 24. Ne6 Rd7 25. Nxc7 Rxc7 26. Bxd5+ Kh8 27. Rc2 Ne7 28. Bb3 h6 29. g4 Rd7 30. g5 Ra6 31. a4 Nd5 32. Re8 Nxb4 33. Rxf8+ Kh7 34. Re2 Kg6 35. Re6+ Kh5 36. Rh8 Rxe6 37. Bxe6 Rc7 38. Bxf5 Rxc5 39. Be4 Nd5 40. gxh6 gxh6 41. Bf3+ Kg6 42. f5+ Kxf5 43. Rxh6 Nc3+ 44. Ke1 Rc8 45. Bg4+ Kg5 46. Bf4+

1-0

Source(s): Evening Herald, February 5, 1949, p. 4.

Other information: Photo of Mieses and O'Sullivan in round 1 of this event (nearest and farthest away from camera, respectively), John Saunders, English Chess Forum, April 23, 2022 (O'Sullivan identified by Leonard Barden in the post immediately following).