[Event "Zurich"] [Site "Zurich"] [Round "0"] [White "Szabo"] [Black "Reshevsky"] [Result "1/2-1/2"] [ECO "E10"] [Opening "Neo-Indian: 3.Nf3"] 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c5 5. cxd5 Nxd5 6. e3 Nc6 7. Bd3 Nxc3 8. bxc3 Be7 9. Qc2 g6 10. h4 h5 11. Rb1 Rb8 12. Be4 Qc7 13. O-O Bd7 14. d5 exd5 15. Bxd5 Bf6 16. Ng5 Nd8 17. c4 Bc6 18. Ne4 Bg7 19. Bb2 O-O {We end this chapter with an astonishing example showing that even world class masters may be troubled by over eagerness to exchange. In this example it amouns to chess blindness. This seems to have been a bad day for both these Grandmasters; it occasionally happens to all of us. At times like this we know we are likely to make wrong decisions at critical moments, and for want of inspiration it is only natural to make exchanges automatically .Such must have been the circumstances which produced the following remarkable sequence of moves} 20. Nf6+ Bxf6 $2 21. Bxf6 (21. Qxg6+ Bg7 22. Qxg7#) 21... Bxd5 $2 { He has spotted the mate threat} 22. cxd5 Qd6 23. Qc3 Qxd5 24. Rfd1 Qf5 25. e4 Qe6 26. Bg7 b6 27. Bxf8 (27. Bh6 $1 f6 28. Qg3 {White would win a whole Rook}) 27... Kxf8 1/2-1/2