[Event "Zandvoort"] [Site "?"] [Round "0"] [White "Euwe"] [Black "Grunfeld"] [Result "1-0"] [ECO "D22"] [Opening "QGA: Alekhine, 4.e3 e6"] {The owner of the Queen is on the attack} 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 e6 5. Bxc4 Nf6 6. O-O c5 7. Qe2 Nc6 8. Rd1 b5 9. Bb3 c4 10. Bc2 Nb4 11. Nc3 Nxc2 12. Qxc2 Bb7 13. d5 exd5 14. e4 Be7 15. e5 Nd7 16. Nxd5 O-O 17. Qf5 Nc5 18. Nf6+ Bxf6 19. Rxd8 Bxd8 {In contrast with the previous examples, the respective chances are sharply defined. White must attack the King, helped by his pawn on e5; Black must make use of the d-file and his Queenside pawn majority. His possession of the outpost at d3 is obviously an important trump} 20. Ng5 {Forcing Black to relinquish the Bishop pair, for if he should weaken his King's position instead, White's material advantage would soon be decisive. } 20... Bxg5 21. Bxg5 {The strong position of this Bishop deprive Black of any opportunity of playing for control of the d-file. The Bishop can't be repulsed except by pushing up the pawns which protect the King} 21... Rfe8 (21... Be4 { defending the Kingside}) 22. Re1 {preventing the manouvre} 22... Re6 23. Re3 Rae8 $2 {This must be considered the decisive mistake} (23... h6 24. Bf6 Nd7) 24. h4 h6 25. Bf6 $1 g6 (25... -- 26. Rg3 g6 27. Rxg6+) (25... gxf6 26. exf6) ( 25... Nd7 26. Rg3 Nxf6 27. exf6 Re1+ 28. Kh2) 26. Qf4 Kh7 27. Bg5 $1 f5 (27... hxg5 28. Qxf7+ Kh6 (28... Kh8 29. hxg5) 29. hxg5+ Kxg5 30. Rg3+ Kh6 31. f4) 28. exf6 {Black resigned, helpless against the many threats} 1-0