[Event "PicoChess game"] [Site "São Paulo, Brazil BR"] [Date "2023.08.15"] [Round "?"] [White "Oswald"] [Black "Constellation Forte (version A) (pos+info) (02-40/5m) (100%)"] [Result "1-0"] [ECO "D02"] [WhiteElo "1500"] [BlackElo "1930"] [Annotator "Tactical Analysis 6.4"] [PlyCount "87"] [EventDate "2023.??.??"] 1. Nf3 e6 2. d4 d5 3. c3 c5 4. e3 Nf6 5. Be2 Bd6 6. O-O {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} O-O 7. Nbd2 Nbd7 8. c4 {[#] The position is equal.} e5 $146 ({Predecessor:} 8... b6 9. cxd5 Nxd5 10. Ne4 Be7 11. dxc5 Nxc5 12. Ng3 Bb7 13. Bd2 Rc8 14. b4 Nd7 {1-0 Zulj,L-Brkic,A CRO-chT2 U18 Pula 1998 (6)}) 9. dxe5 Bxe5 (9... Nxe5 $11 10. cxd5 Nxd5) 10. Nxe5 (10. cxd5 $16 {Hoping for Nxe5.} Bc7 11. e4) 10... Nxe5 $11 11. cxd5 Qxd5 12. Bf3 (12. Qc2 $11) 12... Nxf3+ $15 13. Nxf3 Bg4 (13... Rd8 $5 14. Qxd5 Rxd5 $15) 14. Qxd5 Nxd5 15. Ne5 {White is weak on the light squares} Bf5 16. g4 f6 ({Black should try} 16... Be6 $17 17. g5 Rfd8) 17. gxf5 $11 {[#] Black must now prevent Nd7.} fxe5 18. e4 Nf4 ({Better is} 18... Nb4 $11) 19. Bxf4 $14 exf4 {Endgame. KRR-KRR} 20. Rfe1 (20. Kg2 $16) 20... Rad8 $11 21. Rad1 {Against Rd2} f3 22. h4 Rxd1 23. Rxd1 {KR-KR} Re8 24. Re1 Rd8 $1 25. Re3 Rd2 26. Rxf3 Rxb2 27. Ra3 a6 (27... Re2 $5) 28. Kg2 Rd2 (28... g6 $11) 29. Ra5 (29. Rc3 $14) 29... c4 (29... Rc2 $1 $11) 30. Rc5 $14 b5 31. e5 $1 Rxa2 $2 (31... Kf8 $14) 32. e6 $18 Kf8 33. Rc7 $2 (33. Rc8+ $16 Ke7 34. Rg8) 33... a5 $2 (33... Re2 $1 $15 {stays ahead.} 34. Rf7+ Kg8) 34. h5 ({White should play} 34. Rf7+ $16 Ke8 35. Rxg7) 34... b4 $2 {[#]} (34... Re2 $11) 35. h6 {White mates.} c3 36. hxg7+ Kg8 37. f6 Rxf2+ 38. Kxf2 {KR-KP} h5 39. Ke2 Kh7 40. e7 Kg6 41. e8=Q+ Kf5 42. g8=Q c2 43. Qgg6+ Kf4 44. Qee4# {Weighted Error Value: White=0.22 (precise) /Black=0.49. Loses game: --- Black=2 Mistake: White=6 Black=6 Inaccurate: White=2 Black=2 OK: White=12 Black=9 Best: White=2 Black=2 Strong: White=1 Black=1} 1-0