[Event "CRO (CRO)"] [Site "ICCF"] [Date "????.??.??"] [Round "?"] [White "Tomasa, Ivica"] [Black "Potrata, Janko"] [Result "1/2-1/2"] [ECO "E21"] [WhiteElo "2383"] [BlackElo "2381"] [Annotator "Tactical Analysis"] [PlyCount "54"] [EventDate "2025.??.??"] {[%evp 14,54,-3,-7,-12,-30,-33,-35,-33,-33,-36,-27,-27,-31,-33,-33,-34,-28,-21,-25,-41,-44,-20,-34,-21,-25,-24,-25,-35,-26,-26,-40,-27,-26,-6,-8,-18,-43,-45,-49,-55,-53,-80]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 Bb4 5. g3 Bxc3+ 6. bxc3 Bb7 7. Bg2 O-O $1 {7...0-0 scores better than 7...d6.} 8. O-O h6 {E21: Nimzo-Indian: 4 Nf3.} 9. Nd2 Bxg2 10. Kxg2 Nc6 11. e4 d6 12. Qe2 {[#]} Qd7 $146 ({Predecessor:} 12... e5 13. Nb3 a5 14. a4 Qd7 15. f3 Nh7 16. f4 exd4 17. cxd4 Nb4 18. Bb2 Rfe8 {1/2 Meyer,T-Bartsch,R RR-19851 freechess.de 2016}) 13. f4 {[%CAl Bf2f4,Bf4f5][%mdl 32]} Nh7 14. g4 Rae8 15. Bb2 Na5 16. Rae1 Qa4 17. Qd3 e5 {Threatens to win with ...exf4.} 18. f5 Nf6 19. Rg1 Nd7 20. Kh1 f6 (20... Qxa2 21. Ra1 Qxb2 22. Rgb1 $14) 21. Rb1 Kf7 (21... Qxa2 22. Ra1 Qxb2 23. Rgb1 $14) 22. Bc1 c5 {Prevents Rb4.} ({Don't play} 22... Qxa2 23. Ba3 d5 24. dxe5 (24. Bxf8 dxc4 25. Qe3 Kxf8 $11) 24... Qxa3 25. Ra1 $14 (25. Qxd5+ $2 Ke7 $19)) 23. h4 Rh8 24. d5 Rb8 ({Don't take} 24... Qxa2 25. Ba3 b5 26. cxb5 $16) 25. Kg2 a6 {Black is slightly better.} 26. Kf3 b5 ({Resist} 26... Qxa2 27. Ba3 b5 28. cxb5 Qxa3 29. Ra1 $14) 27. Rb2 Nxc4 {Weighted Error Value: White=0.04 (flawless) /Black=0.03 (flawless) . OK: White=10 Black=9} 1/2-1/2