[Event "USCF 21ENs04 - 2021 Electronic Knights"] [Site "?"] [Date "2023.03.01"] [Round "?"] [White "Schroeer, Egbert"] [Black "Corkum, Tim"] [Result "1/2-1/2"] [ECO "A11"] [WhiteElo "1947"] [BlackElo "2386"] [Annotator "Schroeer,Egbert"] [PlyCount "74"] [EventDate "2023.03.01"] [EventType "tourn (corr)"] [EventCountry "USA"] [SourceVersionDate "2021.05.17"] {[%evp 18,74,23,16,14,19,14,20,24,13,28,19,18,0,2,2,0,0,0,0,0,0,0,0,0,0,4,1,0,0,0,0,0,0,0,0,0,0,0,0,10,10,0,0,0,0,5,4,8,0,0,0,0,0,0,0,0,0,0]} 1. Nf3 Nf6 2. c4 c6 3. Nc3 d5 4. e3 e6 5. b3 Bd6 6. Bb2 O-O 7. d4 Nbd7 8. Be2 b6 9. Qc2 Bb7 10. O-O Re8 {D45: Semi-Slav: 5 e3.} 11. a4 a5 12. Bd3 {[#]} Rc8 $146 ({Predecessor:} 12... Qe7 13. Rad1 Rad8 14. h3 e5 15. e4 g6 16. cxd5 cxd5 17. Bb5 dxe4 18. Nxe5 Nxe5 19. dxe5 Qxe5 20. Rxd6 Rxd6 {½-½ Kishkin,S (2482)-Serner,A (2412) EU-ch C73/final email ICCF email 2020}) 13. Rad1 h6 (13... Qe7 14. h3) 14. h3 Bb8 {The position is equal.} 15. Rfe1 c5 16. Qe2 cxd4 (16... Qe7) 17. exd4 e5 18. dxe5 {[#] Black must now prevent Nxd5.} d4 {...Bxf3 would now be deadly.} 19. Ne4 Nxe5 (19... Bxe5 20. Nxe5 (20. Bxd4 $2 Bxd4 21. Nxd4 Nxe4 $19) 20... Bxe4 21. Bxd4 (21. Bxe4 $6 Rxe5 22. Rxd4 Re6 $16) 21... Bxd3 22. Qxd3 $16 (22. Rxd3 $6 Qc7 $16)) 20. Nxf6+ {White sacrifices a pawn, Manoeuvre: 22.Qe2-g4-f5-d7, Black doubles rooks in the e-file (22...Rce8), 25...Bxg2+ is a sac (Decoy), White gets the bishop pair (26.Kxg2), Both kings are quite unsafe after 27.Kf3, Double attack on d4/e8 (28.Qd7), Perpetual check (28...Qf4+)} (20. Bxd4 Nxf3+ 21. Qxf3 Qxd4 $14) 20... Qxf6 21. Nxe5 (21. Nxd4 {And now Bf5 would win.} Nxd3 22. Qxd3 Be5 23. Re3 (23. Ba1 Red8 (23... Rcd8 $5 {[%CAl Rd8d7]}))) 21... Rxe5 (21... Bxe5 {simplifies} 22. Bxd4 Bh2+ 23. Kxh2 Rxe2 24. Bxf6 Rxf2 25. Bf1 Rxf6 26. Re7 Bc6) 22. Qg4 Rce8 23. Rxe5 Qxe5 24. g3 {Dancing on a razor blade. Active counter play!} Qd6 {[#] aiming for ...Qc6.} (24... Qf6 25. Bxd4 Bf3 $2 {[%eval 194,34] [%wdl 995,5,0]} (25... Be5 $1 $11 {[%eval 3,36] [%wdl 5,991,4] and Black is okay.} 26. Bxe5 Rxe5) 26. Bxf6 $18 {[%csl Gf6][%CAl Rg4g7]} Bxg4 27. hxg4 gxf6 28. c5 bxc5 29. Bb5 Rc8) 25. Qxd4 (25. Bxd4 g6 26. Kh2 h5 $17) 25... Qxd4 26. Bxd4 Bf3 27. Rc1 Rd8 28. Re1 $1 {[%CAl Od3c2]} g5 (28... Bc6 29. Be4 $1 Rxd4 30. Bxc6 {Strongly threatening Re8+.} Bd6 31. Re8+ Kh7 32. Kf1 Rd1+ 33. Ke2) 29. Re3 (29. Bxb6 $2 {too greedy.} Rxd3 30. Rb1 (30. Bxa5 $2 {perishes.} Rxb3 31. Bd2 Rb2 $19) (30. Re8+ $2 Kg7 $19) 30... Rd1+ 31. Rxd1 Bxd1 $19) 29... Rxd4 30. Rxf3 $11 {[%CAl Oc4c5][%mdl 4096] Endgame. KRB-KRB} Bd6 31. Kf1 Bc5 32. Ke2 Rd6 (32... Kg7 33. Rf5 {White is a pawn up} Rd6 34. Be4 Rf6 35. f3 {Black is weak on the light squares} Rxf5 36. Bxf5 Kf6 37. Bd7 Ke5 {The position is equal}) 33. Be4 Kg7 (33... Re6 $5 34. Kd3 $8 Kg7 $14) 34. Rf5 Rf6 35. Rxf6 Kxf6 36. f4 gxf4 37. gxf4 Ke6 {An interesting draw. Weighted Error Value: White=0.02 (flawless) /Black=0.01 (flawless) . OK: White=14 Black=13 Best: White=2 Black=4 Strong: White=1 ---} 1/2-1/2