The Lagoons of Venice

Jan Hendrik Timman – Roberto Cosulich
11th International Tournament; Venice, November 1974
Nimzo-Indian Defence E45

“Cosulich was the best of the Italian masters in this tournament, although many contestants were of the opinion that his youth led him to extremes. For example, look at his draw against Mariotti: 1. P-KR4 P-QR4 2. P-QR4 P-KR4, draw?! And against Timman he played clownishly and lost in six moves by overlooking a piece”, Grandmaster Pál Charles Benkö wrote in Chess Life & Review, Vol. XXX, No. 2, February 1975, p. 81.
1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 5. Ne2 Ba6 6. Ng3

6. ... d5?? It’s quite paradoxical that three years before, a game Gligorić – Cosulich, 10th International Tournament, Venice 1971, continued 6. ... Bxc3+ 7. bxc3 d5 8. Ba3 dxc4 9. e4 Qd7 10. Be2 Nc6 11. 0-0 0-0-0 12. Qc2 h5 13. Rfd1 Nb8!? 14. Bc1! h4 15. Nf1 Qc6 16. Bf3 Bb7 17. Bg5 Rdg8 18. d5 Qd6 19. Nd2 Qe5! 20. Bxf6 gxf6 21. Nxc4 Qf4 with satisfactory play for Black.
7. Qa4+ 1–0. “It is a safe bet that this has happened before. Cosulich missed the international master norm at this tournament by half a point” — Kevin John O’Connell, The Batsfod Chess Yearbook, B. T. Batsford Limited, London, 1975, p. 79.