[Event "Dorset & Wlts vs Cornwall"] [Site "lichess.org"] [Date "2021.02.21"] [Round "?"] [White "Pleasants, Allan"] [Black "Nunn, John"] [Result "0-1"] [ECO "B22"] [WhiteElo "2069"] [BlackElo "2561"] [Annotator "peter"] [PlyCount "102"] [EventDate "2021.??.??"] [SourceVersionDate "2019.03.01"] [TimeControl "3600+15"] 1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4 6. Nbd2 Nc6 7. Bc4 Bxf3 8. Qb3 Na5 9. Qb5+ Qd7 10. Nxf3 Nxc4 11. Qxc4 cxd4 12. Qxd4 Qxd4 13. Nxd4 e5 14. Nf3 e4 15. Nd4 Bc5 16. Be3 Ng4 17. O-O-O O-O-O 18. Kc2 g6 19. h3 Ne5 20. Bg5 Rd7 21. Bf6 Re8 22. Bxe5 Rxe5 23. Rhe1 Rde7 24. Re2 Rg5 25. g4 Rge5 26. b4 Bb6 27. a4 a6 28. a5 Bc7 29. Nb3 h5 30. Nd2 f5 31. gxh5 gxh5 32. Nc4 R5e6 33. Ne3 f4 34. Nd5 {Having manoeuvered well Allan reached this position but only had 2 minutes 42 seconds plus increment left.} Rg7 $16 (34... Re8 $14) 35. Rde1 $11 ( 35. Rd4 $1 {I am sure if he had had more time Allan would have found this strong continuation} e3 (35... Rg2 $2 36. Rc4 {this is the big difference vs 35.Rde1 - the black rook is driven back and e4 falls} Rg7 (36... Rc6 37. Ne7+) 37. Nxc7 Rxc7 38. Rcxe4 {which looks won to me}) 36. Nxc7 Kxc7 37. Rxf4 Rg2 38. Kd3 Rxf2 39. Rexf2 exf2 40. Rxf2 Rg6 {I am not sure if this is won but White must have reasonable chances and no chances of losing}) 35... Rg2 36. Nxc7 (36. Rxe4 Rxf2+ 37. Kd3 Rf3+ 38. Kc4 Rxe4+ 39. Rxe4 Bd6 $11) 36... Kxc7 37. Rxe4 Rxf2+ 38. Kb3 (38. Kd3 Rf3+ 39. Kd2) 38... Rxe4 39. Rxe4 Kd6 {and we arrive at an ending which the engines say is equal but it is obviously easier to play with Black.} 40. Kc4 f3 41. Rf4 $18 (41. Kd3 $11 Ra2 42. Rf4 f2 43. Ke3 Kd5 44. c4+ (44. Rxf2 Rxf2 45. Kxf2 Kc4 46. Kg3 Kxc3 47. Kh4 Kxb4 48. Kxh5 Kxa5 49. Kg4 b5 50. h4 b4 51. h5 b3 52. h6 b2 53. h7 b1=Q 54. h8=Q $11 {but not fun to defend}) 44... Ke5 45. Re4+ Kf5 46. Rf4+ Ke5 (46... Kg5 $2 47. h4+ $18) 47. Re4+ Kd6 48. Rf4 Rb2 49. Rxf2 Rxb4 50. Kd4 $11 Rb3 51. Rf6+ Kc7 52. h4 $11) ( 41. Kd4 $11 {with similar lines to 41.Kd3}) 41... Rf1 $11 (41... Ke5 $1 { wins but it is far from trivial} 42. Rf7 Ke4 43. Rxb7 Rc2 $1 {tying the Whiite king to the c-pawn and the only move to win} (43... Rb2 44. Rf7 Ke3 45. Kc5 f2 46. Kb6 Rb1 47. Kxa6 $11 {but it is Black who needs to take care to secure the draw}) (43... Rd2 44. Re7+ Kf4 45. Rf7+ Kg3 46. b5 $11) 44. Rf7 Ke3 45. Kb3 ( 45. b5 axb5+ 46. Kxb5 Rxc3 47. h4 f2 48. a6 Ke2 49. a7 Ra3 50. Re7+ Kf3 51. Rf7+ Kg2 52. Rg7+ Kh3 53. Rf7 Rxa7 54. Rxf2 Kxh4 {and this is a tricky technical win but one which I am sure John Nunn would know very well.}) 45... Rd2 46. Kc4 {this has cost White a vital tempo} (46. b5 axb5 47. a6 f2 48. a7 Rd8 49. Kb4 Ra8 50. Kxb5 Rxa7 $19) 46... f2 47. Kc5 Ke2 48. Kb6 Rd6+ $19) 42. Rf6+ $19 {this lets the Black king in and loses a tempo at the same time and now White is once again lost. There were a number of alternatives to hold, but they still require a degree of care from White.} (42. Kd4 $11 f2 43. Ke3 Rh1 44. Kxf2 Rxh3 45. Rc4) (42. Kd3 Ke5 (42... Kd5 43. c4+ $11 (43. Ke3 $11) 43... Ke5 44. Rf7 Rb1 45. b5 axb5 46. cxb5 Rxb5 47. Ke3 $11) (42... f2 43. Rf7 $11 ( 43. Ke2 Rh1 44. Kxf2 $11)) 43. Rf7 $11) (42. Rf7 Ke5 43. Kd3 $11 (43. Kc5 { this draws too, the extra tempo making all the difference as the immediate Rc1 is no longer available to Black.})) 42... Ke5 43. Rf8 (43. Rf7 {also loses but might have been a better practical try}) 43... Ke4 44. Kc5 Rc1 45. Kb6 Rxc3 46. Kxb7 Rb3 47. Kxa6 Rxb4 48. Re8+ Kf4 49. Rf8+ Kg3 50. Ka7 Rf4 51. Rg8+ Kxh3 0-1