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Oswestry Chess Club
[Event "Darwinian Kts A v Oswestry A"] [Site "Shrewsbury"] [Date "2024.10.08"] [Round "Brd 1"] [White "Van Kemenade, R."] [Black "Clark, Matthew DH"] [Result "1/2-1/2"] [ECO "B51"] [WhiteElo "1900"] [BlackElo "1779"] [Annotator "Rudy van Kemenade"] [PlyCount "104"] [EventDate "2024.10.09"] [SourceVersionDate "2024.09.14"] {[%evp 0,104,19,38,40,46,69,47,79,47,45,34,56,-9,19,32,52,60,48,26,27,30,54,74,81,66,103,66,65,22,78,51,47,25,24,27,74,11,10,-13,86,105,160,154,328,346,338,353,342,322,394,317,408,398,398,363,501,505,507,342,342,354,366,374,372,359,371,11,12,0,0,0,0,-17,0,0,9,19,11,0,14,0,0,0,0,0,0,0,0,0,0,0,0,-60,-65,-65,-80,-63,37,30,62,56,87,87,80,58,80]} 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 4. O-O Ngf6 (4... a6 5. Bd3 Ngf6 6. Re1 b5 7. c4 g5 {Is a wild line first seen in Carlsen-Topalov, Singuefield 2015,0-1 and further explored by elite GMs}) 5. Re1 g6 (5... a6 6. Bf1 b6 {main}) (5... e6 6. c3 Be7 7. d4 O-O) 6. c3 Bg7 7. d4 cxd4 (7... O-O 8. e5 (8. h3)) 8. cxd4 O-O 9. a4 (9. Nc3 {main} a6 10. Bf1 b5 11. a3 (11. e5 {main, but leads to =}) 11... Bb7 12. h3 e6 13. Bg5 h6 14. Bh4 g5 15. Bg3 Nb6 16. Nd2 $14 {Van Kemenade-Clark, Shropshire Individual jan 2023,1-0}) 9... a6 10. Bf1 e6 $6 (10... e5 {3-1-3}) 11. Nc3 h6 (11... b6 12. Qb3 Bb7 13. Bf4 d5 14. e5 Ne8 15. Bg5 f6 16. exf6 Bxf6 17. h4 $18 {Panda -Zvereva, Leon blitz open 20220,1-0}) 12. Bf4 Qe7 13. h3 $16 (13. e5 $1 dxe5 14. dxe5 Nh7 15. Ne4 g5 16. Bg3 g4 17. Nh4 Nxe5 18. Nd6 Bd7 19. Bxe5 Qxh4 20. Bxg7 Kxg7 21. b4 Qf6 22. Ne4 Qe7 23. Qxg4+ Kh8 24. Qf4 $18 {SF17}) 13... b6 14. Qd2 (14. d5 e5 15. Be3 Ne8 16. Qc1 (16. Nd2 f5 17. Nc4 Qd8 18. exf5 gxf5 19. f4 $16) 16... Kh7 17. a5 bxa5 (17... b5 18. Nxb5 axb5 19. Qc6 Rb8 20. a6 Bxa6 21. Rxa6 $18 {SF17})) 14... Kh7 15. Bd3 (15. e5 dxe5 16. Nxe5 Bb7 17. Nc4 Qd8 18. Bd6 Re8 19. Qf4 $16 {SF17}) 15... Bb7 16. d5 e5 (16... Rfe8 $14 {SF17}) 17. Be3 $16 {Wh was now hoping to keep both Bl Bs backward} Rac8 18. a5 (18. b4 $16 {SF17, considered by Wh, who went for an overambitious plan}) 18... b5 19. Na2 $6 {idea was to get the N into c6, but after after playing this Wh was seeing the problems with this move} (19. b4 $16 {considered, still the best}) 19... Nxd5 $2 {after some thought, but a miscalculation} (19... Nc5 {Wh Wh was now worried about,as the swap is forced , since the e pawn lacks protection} 20. Bxc5 dxc5 21. b3 Ne8 22. Qe2 Nd6 $17 {the N is the perfect blockader, and both Bl Bs threaten to become active after f5.}) 20. exd5 e4 21. Bd4 $18 {Wh had seen earlier that the R was opposite the Q inhibiting the capture on d5} Bxd5 (21... f5 {gives Bl some compensation for the piece}) 22. Bxg7 Kxg7 23. Nc3 Be6 24. Bxe4 (24. Nxe4 d5 25. Nc3 Qf6 26. Bf1 Nc5 {Bl gets a bit of activity}) 24... Nc5 25. Qd4+ (25. Bd5) 25... Kg8 26. Bd5 (26. Nd5 Bxd5 27. Bxd5 Qd7 28. b4 Ne6 29. Bxe6 fxe6 30. Rad1 d5 31. Qe3 $18 {SF17}) 26... Qd8 27. b4 Nb3 28. Bxb3 Bxb3 29. Nd5 (29. Ne4 {initial idea} f5 30. Nxd6 Rc6 {looked good for Bl, but Wh has two ways of sidestepping} 31. Nb7 (31. Qe3 Rxd6 32. Qxb3+ $18) 31... Qc7 32. Nc5 $18) 29... Bxd5 30. Qxd5 Qf6 31. Rad1 (31. Rac1 {immediately looks better} Qf4 32. Qd2 Qxd2 33. Nxd2 $18 {SF17}) 31... Rfd8 32. Rc1 (32. Qb7 Rc4 33. Qxa6 Rxb4 34. Qb7 Kg7 35. a6 {and the a pawn gets very dangerous} Ra4 36. a7 Rf8 37. Nd4 $1 {SF17}) 32... Rc3 33. Qd4 $2 {a blunder as Wh realised on playing the move} (33. Rxc3 Qxc3 34. Qd4 $18 (34. Re7 $18)) 33... Rxf3 34. Qxf6 (34. Qb6 Rf4 35. Qxa6 Rxb4 36. Ra1 (36. Rb1 Rb2 37. Qb6 Ra8 38. Rxb2 Qxb2 39. Qxd6 Qc3 40. Re7 Qxa5 41. Qd5 Rf8 $11) 36... Rb2 37. Rf1 Rxf2 38. Qxb5 Rxf1+ 39. Rxf1 Qe7 40. a6 d5 41. Qb7 Rd7 42. Qb6 d4 $11 {SF17- though a pawn down in both variations it seems Wh can hold}) 34... Rxf6 35. Rc6 Rf4 (35... Ra8 36. Rd1 Rf4 {transposes}) 36. Rb1 (36. Rxa6 {may be worth a try for a complex position, though Wh stays a pawn down} Rxb4 37. Re7 Kg7 38. Raa7 Rf4 39. a6 Rc8 40. Rab7 Rc1+ 41. Kh2 Rxf2 42. a7 Ra1 43. Kg3 Rff1 44. Re8 Ra3+ 45. Kh2 Rfa1 46. Ree7 Rf1 47. Rxb5 Raa1 48. Kg3 Ra3+ 49. Kh2 Raa1 50. Rb8 Rh1+ 51. Kg3 Ra3+ 52. Kf2 Ra2+ 53. Kg3 Rha1 54. Rbb7 Rf1 $11) 36... Ra8 {[draw?]} (36... d5 37. Rxa6 d4 38. Rc6 d3 39. Rcc1 Rdd4 40. Ra1 Rfe4 41. a6 Rd8 42. a7 Ra8 43. Rd1 Rxb4 44. Rxd3 Ra4 45. Rb1 R8xa7 46. Rxb5 $11 {SF17}) 37. Rxd6 Kg7 38. g3 Rc4 {simplest, both sides attend to a vulnerable pawn, with neither K being able to join in} (38... Rf6 39. Rxf6 Kxf6 40. Rc1 Re8 41. Kg2 Re4 42. Rc6+ Ke5 (42... Re6 $11) 43. Rxa6 Kd5 44. Rb6 Rxb4 45. Rb7 Kc4 46. Rc7+ Kb3 47. Rxf7 Ra4 48. Rf6 b4 49. Rxg6 Rxa5 50. Rxh6 Ka4 51. Re6 b3 52. Re1 b2 53. h4 $11 {SF17- its actually risky for both sides, one tempo either way might lead to win. SF17 concludes a draw due to bare Ks on move 78}) 39. Rb2 Ra7 40. h4 h5 41. Kf1 Kf8 42. Ke2 Kg7 43. Ke3 Re7+ 44. Kd3 Ra7 (44... Re6 45. Rxe6 fxe6 46. Rc2 Rxc2 47. Kxc2 Kf6 48. Kd3 Ke5 49. Ke3 Kd5 50. Kd3 $11 {Sf17}) 45. Rb3 Kf8 46. Rc3 Rxb4 47. Rcc6 Ra4 48. Rxa6 Rxa6 (48... Rxa5 {gives Bl better prospects, though Wh can now shelter the K on g2 or try more active play to diminish the number of pawns} 49. Rxa7 Rxa7 50. Rb6 Ra3+ 51. Ke2 (51. Kc2 Rf3 52. Rxb5 Rxf2+ {is losing}) 51... Rb3 52. f3 Ke7 53. g4 hxg4 54. fxg4 Rg3 (54... b4 55. Kf2 Rb2+ 56. Kg3 Rb1 57. Kg2 b3 58. Rb7+ Kf6 59. Rb6+ Ke5 60. Rb5+ Kf4 61. Rb4+ Ke3 62. h5 b2 63. h6 Rc1 64. Rxb2 Kf4 65. Rb8 Rc2+ 66. Kh3 Rc3+) 55. h5 Rxg4 56. hxg6 Rxg6 57. Rxb5 {as someone once joked- all R & P endings are drawn ( not really)}) 49. Rxa6 Kg7 50. Kc3 Kh7 51. Kb3 Kg7 52. Ra7 Kg8 {[Wh offered a Draw]} 1/2-1/2
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Annotated by