![](https://www.hugochess.com/assets/img/canada.png)
[Event "Ottawa op"]
[Site "Ottawa CAN"]
[Date "1972.01.29"]
[Round "1.12"]
[White "Nguyen, Tuong"]
[Black "Lacroix, Serge"]
[Result "0-1"]
[WhiteElo "1420"]
[BlackElo "1819"]
[PlyCount "68"]
1.e4 d6 2.d4 g6 3.Nf3 Bg7 4.Be3 Nd7 5.Be2 b6 6.Nbd2 Bb7 7.Ng5 h6 8.Nh3 e5 9.c3 Ne7 10.f4 f5 11.Qc2 O-O 12.O-O-O Kh7 13.g4 fxe4 14.Nxe4 Nd5 15.Bd2 Qh4 16.Nhf2 Nxf4 17.Bxf4 Rxf4 18.d5 Raf8 19.Rhf1 Rxf2 20.Nxf2 Rxf2 21.Rd2 Rxf1+ 22.Bxf1 Qxg4 23.Kb1 Nc5 24.Rg2 Qe4 25.Qxe4 Nxe4 26.c4 Bc8 27.Bd3 Bf5 28.Kc1 h5 29.Kc2 Bh6 30.Kb3 Nc5+ 31.Kc3 Bxd3 32.b4 Bf1 33.Rg1 Ne4+ 34.Kb3 Nd2+ 0-1
[Site "Ottawa CAN"]
[Date "1972.01.29"]
[Round "1.12"]
[White "Nguyen, Tuong"]
[Black "Lacroix, Serge"]
[Result "0-1"]
[WhiteElo "1420"]
[BlackElo "1819"]
[PlyCount "68"]
1.e4 d6 2.d4 g6 3.Nf3 Bg7 4.Be3 Nd7 5.Be2 b6 6.Nbd2 Bb7 7.Ng5 h6 8.Nh3 e5 9.c3 Ne7 10.f4 f5 11.Qc2 O-O 12.O-O-O Kh7 13.g4 fxe4 14.Nxe4 Nd5 15.Bd2 Qh4 16.Nhf2 Nxf4 17.Bxf4 Rxf4 18.d5 Raf8 19.Rhf1 Rxf2 20.Nxf2 Rxf2 21.Rd2 Rxf1+ 22.Bxf1 Qxg4 23.Kb1 Nc5 24.Rg2 Qe4 25.Qxe4 Nxe4 26.c4 Bc8 27.Bd3 Bf5 28.Kc1 h5 29.Kc2 Bh6 30.Kb3 Nc5+ 31.Kc3 Bxd3 32.b4 Bf1 33.Rg1 Ne4+ 34.Kb3 Nd2+ 0-1
[Event "Ottawa op"]
[Site "Ottawa CAN"]
[Date "1972.01.29"]
[Round "1.12"]
[White "Nguyen, Tuong"]
[Black "Lacroix, Serge"]
[Result "0-1"]
[WhiteElo "1420"]
[BlackElo "1819"]
[ECO "B06"]
[EventDate "1972.01.29"]
[PlyCount "68"]
[EventType "swiss"]
[EventRounds "5"]
[EventCountry "CAN"]
1. e4 d6 2. d4 g6 3. Nf3 Bg7 4. Be3 Nd7 5. Be2 b6 6. Nbd2 Bb7 7. Ng5 h6 8.
Nh3 e5 9. c3 Ne7 10. f4 f5 11. Qc2 O-O 12. O-O-O Kh7 13. g4 fxe4 14. Nxe4
Nd5 15. Bd2 Qh4 16. Nhf2 Nxf4 17. Bxf4 Rxf4 18. d5 Raf8 19. Rhf1 Rxf2 20.
Nxf2 Rxf2 21. Rd2 Rxf1+ 22. Bxf1 Qxg4 23. Kb1 Nc5 24. Rg2 Qe4 25. Qxe4 Nxe4
26. c4 Bc8 27. Bd3 Bf5 28. Kc1 h5 29. Kc2 Bh6 30. Kb3 Nc5+ 31. Kc3 Bxd3 32.
b4 Bf1 33. Rg1 Ne4+ 34. Kb3 Nd2+ 0-1