[Event "USCF 21EN09 - 2021 Electronic Knights"] [Site "?"] [Date "2021.05.17"] [Round "?"] [White "Schroeer, Egbert"] [Black "Houck, Austin"] [Result "1-0"] [ECO "A09"] [Annotator "Tactical Analysis 4.1 (15s)"] [PlyCount "57"] [Beauty "8248082042376"] [EventDate "2021.05.17"] [EventType "corr"] [EventCountry "USA"] [SourceVersionDate "2021.05.17"] [WhiteTeam "Schroeer, Egbert"] [BlackTeam "Houck, Austin"] {[%evp 9,57,0,25,-9,-10,-23,-9,-9,-9,-9,-9,-9,-2,-3,46,32,32,36,103,103,103,103,103,135,240,233,235,229,258,258,258,258,258,241,241,240,275,275,275,275,274,264,391,379,420,385,491,491,491,486]} 1. Nf3 d5 2. c4 d4 3. b4 Nf6 4. g3 ({RR} 4. Bb2 Bg4 5. Nxd4 e5 6. Nc2 Nbd7 7. g3 h5 8. h3 Be6 9. d3 c6 10. Bg2 Qc7 11. Nd2 O-O-O 12. a4 e4 13. Nxe4 Nxe4 14. Bxe4 Nf6 15. Bg2 Bxc4 16. O-O Bd5 17. b5 Bc5 18. d4 h4 {Iturrizaga Bonelli,E (2593)-Nakamura,H (2835) Chess.com INT 2016 1-0}) 4... e5 $146 ({RR} 4... Qd6 5. Na3 e5 6. Nc2 a5 7. b5 c5 8. d3 g6 9. Bg2 Bg7 10. O-O O-O 11. e3 dxe3 12. Nxe3 e4 13. dxe4 Qxd1 14. Nxd1 Nxe4 15. Bb2 Be6 16. Bxg7 Kxg7 17. Ne5 Nd2 18. Re1 Nxc4 19. Nxc4 {Hillarp Persson,T (2564)-Englert,F (2304) Helsingor 2014 ½-½ (58)}) ({RR} 4... Bf5 5. Bg2 Nbd7 6. O-O e5 7. a3 Rb8 8. d3 Bd6 9. Nbd2 b6 10. Bb2 O-O 11. Rc1 a6 12. Nb3 c5 13. b5 a5 14. a4 Qc7 15. Nbd2 h5 16. Nh4 Bh7 17. Re1 Be7 18. Nhf3 Ng4 19. h3 {Spieker,H (1707)-Boettner,J (1482) Playchess.com INT 2021 1-0 (35)}) ({RR} 4... Bg4 5. Bg2 e6 6. a3 c5 7. b5 Nbd7 8. d3 Qc7 9. Bg5 Bd6 10. Bxf6 Nxf6 11. Nbd2 O-O 12. O-O h6 13. a4 e5 14. Nb3 Nd7 15. a5 f5 16. a6 e4 17. axb7 Qxb7 18. Na5 Qc7 19. dxe4 {Holdaway,S-Reed,K Wanganui 2005 0-1}) ({RR} 4... c5 5. Bg2 cxb4 6. a3 bxa3 7. Bxa3 Nc6 8. Qa4 Bd7 9. O-O g6 10. d3 Bg7 11. Nbd2 O-O 12. Qb5 Qc7 13. Rfb1 Rab8 14. Qb2 Rfd8 15. Bc5 b6 16. Bxd4 Nxd4 17. Nxd4 Ng4 18. Ra2 Be8 19. Nb5 {Ramirez Alvarez,A (2566)-Rambaldi,F (2574) Panama City 2017 0-1}) 5. Nxe5 c6 6. Bg2 {A09: Réti Opening: 1 Nf3 d5 2 c4.} Bxb4 {[#]} 7. Na3 $146 ({Predecessor:} 7. O-O O-O 8. Nf3 c5 9. Na3 Nc6 10. Nc2 Ba5 11. d3 Bf5 12. Rb1 b6 13. Nh4 {1-0 (51) Zlotkowski,A (2394)-Wojcik,W (2280) ICCF email 2016}) 7... Bd6 8. Nf3 {The position is equal.} c5 9. O-O O-O 10. e3 Nc6 11. Qb3 Ne5 {[%eval 46,18]} (11... dxe3 $11 {[%eval -3,16] should be considered.} 12. fxe3 a6) 12. Nxe5 Bxe5 13. Bb2 Rb8 {[%eval 103,20]} (13... Re8 $14 {[%eval 36,17]}) 14. Nb5 $16 {Black is now going downhill.} a6 15. exd4 cxd4 16. f4 Bd6 {[%eval 240,21]} (16... Bxf4 $16 {[%eval 135,17]} 17. Rxf4 axb5) 17. Nxd6 $18 ({Stronger than} 17. Nxd4 Bc5 $11) 17... Qxd6 18. Ba3 {[%mdl 64] [#] Skewer} Qc7 19. Bxf8 Kxf8 20. Qb4+ Kg8 21. Rfe1 Be6 22. c5 d3 23. Qb6 Qxb6 24. cxb6 Nd7 25. Reb1 f5 {[%eval 391,19]} (25... g6 {[%eval 264,18] is a better defense.} 26. a4 Bf5) 26. a4 Nc5 27. Ra3 Rd8 28. Rc1 Ne4 29. Bf1 {Weighted Error Value: White=0.03/Black=0.29} 1-0