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Oswestry Chess Club
[Event "Oswestry A - Darwinian Knights A"] [Site "?"] [Date "2025.03.06"] [Round "Bd 1"] [White "Clark, Matthew DH"] [Black "Van Kemenade, R."] [Result "0-1"] [Annotator "Van Kemenade,Rudy"] [ECO "A48"] [WhiteElo "1748"] [BlackElo "1956"] [PlyCount "40"] [GameId "2152697989533796"] [EventDate "2025.03.06"] {[%evp 0,21,15,23,19,12,25,16,21,6,6,-4,-5,-5,-1,-16,-16,-27,-24,-30,-37,-33,-29,-41]} 1. d4 Nf6 2. Nf3 g6 3. e3 {Prelude to a Colle, but not the best system against a King's Indian, The B on d3 lacks any chance of a sacrifice on h7. Also, against a Bl d5 setup Wh takes then takes two move to get to e4. With a King's Indian Bl doesn't mind if the pawn gets to e4 in the first place.} Bg7 4. Bd3 d6 5. b3 {the Rubinstein subvariation, again more useful against a Bl d5 setup.Wh is trying to prevent Bl from playing the usual e5} O-O 6. Bb2 Nc6 7. a3 {main response, to dsave the d3 B, but Bl wasn't planning on chasing it anyway- so the move loses a tempo} e5 {comes anyway- & Wh only scores 24 % from 29 games} 8. dxe5 Ng4 (8... dxe5 {can also be played, and is actually preferred by the Cloud Engines, it is dangeous to take the offered pawn.(which shows up the futility of the slow Bb2 setup)} 9. Nxe5 $2 Nxe5 10. Bxe5 Qd5 $19 11. Bxf6 (11. Bd4 Qxg2 12. Kd2 c5 13. Bc3 Ne4+ 14. Bxe4 Qxe4 15. Kc1 Bg4 16. Qe1 Rfd8 17. Bxg7 Rd1+ 18. Qxd1 Bxd1 19. Rxd1 Kxg7 20. Nc3 Qe5 21. Kb2 Qxh2 22. Rd7 Qxf2 23. Rxb7 h5 24. e4 h4 25. Rh1 g5 26. Rd7 c4 27. b4 g4 28. e5 Re8 29. Rd5 h3 30. Rdd1 Rxe5 31. Rdf1 Qd4 32. Rd1 Qe3 33. Rd7 Qf3 34. Rh2 Rh5 35. Rd1 g3 36. Rg1 Kf8 {0-1 Prada Villagrasa,P (1874)-Narciso Dublan,M (2422) Badalona op 47th 2023 (8)}) 11... Qxg2 (11... Bxf6 {is even stronger} 12. Ra2 Qxg2 13. Rf1 Bh3 {will win an exchange} (13... Bg4 14. Qc1 Rad8 {SF17 -and Wh is completely tied down})) 12. Bxg7 Qxh1+ 13. Kd2 Qxd1+ 14. Kxd1 Kxg7 15. Nc3 Bg4+ 16. Kd2 c6 17. Rg1 Be6 18. h4 h5 19. Ne2 Rad8 20. Nf4 Bg4 21. Rg3 Kh8 22. Kc3 Rd6 23. f3 Bd7 24. e4 Rf6 25. Ng2 Re6 26. Nf4 Rf6 27. Ng2 Re8 28. f4 Rfe6 29. Re3 c5 30. Ne1 Bc6 31. e5 Rd8 32. Nf3 Bxf3 33. Rxf3 Kg7 34. b4 cxb4+ 35. axb4 f6 36. exf6+ Rxf6 37. Kc4 Rdf8 38. Rg3 Rxf4+ 39. Kb5 R8f6 40. Rh3 Rd6 41. Kc5 Rdf6 42. Re3 Rxh4 43. Re7+ Rf7 44. Re6 Rg4 45. c4 Rc7+ 46. Kb5 h4 47. c5 h3 48. Re3 Rh4 49. Re1 h2 50. Rh1 g5 51. Be2 Kg6 {0-1 Natareno Beltran,E (1581)-Mutisya,J (1428) Olympiad Women-44 Chennai 2022 (10.3)}) 9. O-O Ncxe5 10. Nxe5 Nxe5 11. Be2 (11. Nc3 {3 draws and two Bl wins}) 11... Qh4 $146 {hoping to induce Wh to weaken the K side with a pawn move} (11... Nf3+ {considered and Cloud Engines} 12. Bxf3 Bxb2 13. Ra2 {(though the twoBs gives Bl aa edge} Be5 $11 14. Nd2 d5 15. c4 c6 16. cxd5 cxd5 17. Re1 Be6 18. Be2 Bc3 19. Rc2 Rc8 20. Qc1 Qa5 21. b4 Bxd2 22. bxa5 Bxc1 23. Rexc1 Kg7 24. Kf1 Kf6 25. Ke1 Ke5 26. Kd2 Rxc2+ 27. Rxc2 Rc8 28. Rb2 Rc7 29. Bd3 Kd6 30. h3 Bc8 31. Rb4 Rc5 32. Rb5 Rxb5 33. Bxb5 Kc5 34. Be8 Be6 35. Kc3 f6 {½-½ Bondarenko,S (1912)-Medvedyk,V (2005) Brody Bryvka Memorial 3rd 2023 (6)}) 12. Bxe5 {Wh falls in with Bl's aims} (12. Nc3 Re8 (12... Be6 {avoids the simplification that follows all the next complications}) 13. Nd5 Ng4 14. Bxg4 Bxg4 15. Bf6 $1 Bxf6 16. Qxg4 Qxg4 17. Nxf6+ Kg7 18. Nxg4 h5 19. h3 hxg4 20. hxg4 Re4 21. Rfd1 Rxg4 $11 {is some fancy footwork by SF17}) 12... Bxe5 (12... dxe5 {also powerful, looks even better than the text. Wh has trouble developing} 13. Nd2 (13. c3 e4 14. Qc2 f5 $17) 13... e4 14. Ra2 Bc3 15. Nb1 Be5 16. g3 Qe7 $17 {SF17}) 13. g3 Qf6 14. Ra2 Bh3 15. Re1 Qe6 {avoids immediate simplification - though Wh might well be advised to offer a B swap via f1} 16. c4 $11 {because the Engine knows it can defend perfectly} Rad8 (16... a5 17. a4 h5 18. Bf1 h4 $11 {SF17- though Bl will get chances down the h file}) 17. Bf3 c6 18. Rd2 h5 $15 19. Qc1 Rd7 {seeing Wh's intention but choosing not to prevent it.} (19... h4 $1 {is more forcing} 20. Bh1 (20. Bg2 Bxg2 21. Kxg2 Kg7 $19) 20... g5 21. Nc3 Rfe8 $17 (21... f5 22. f4 $11 {SF17})) 20. Nc3 $2 (20. Bg2 h4 $15) 20... Qf6 {and and Wh goes a R down or gets mated. How the accumulation of small disadvantages can lead to sudden disaster.} 0-1
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