1.
d4
Nf6
2.
c4
g6
3.
Nc3
Bg7
4.
g3
O-O
5.
Bg2
d6
6.
Nf3
Nbd7
7.
O-O
e5
8.
e4
c6
9.
Re1
Qb6
10.
h3
exd4
11.
Nxd4
Ng4
12.
hxg4
Bxd4
13.
Rf1
a5
14.
Na4
Qa7
15.
Bf4
Ne5
16.
Bxe5
dxe5
17.
Rc1
Be6
18.
b3
Rfd8
19.
Qf3
b6
20.
g5
Rd6
21.
Rc2
Rad8
22.
Rfc1
Qe7
23.
c5
bxc5
24.
Nxc5
Bxc5
25.
Rxc5
Qxg5
26.
Re1
Rd2
27.
Qe3
Qxe3
28.
Rxe3
Rxa2
0-1
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Event
Site
Enschede
Date
1963.10.25
Round
17
White
Mazzoni, Guy
Black
Penrose, Jonathan
Result
0-1
Score
[Event "Zonal Enschede"] [Site "Enschede"] [Date "1963.10.25"] [Round "17"] [White "Mazzoni, Guy"] [Black "Penrose, Jonathan"] [Result "0-1"] 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. g3 O-O 5. Bg2 d6 6. Nf3 Nbd7 7. O-O e5 8. e4 c6 9. Re1 Qb6 10. h3 exd4 11. Nxd4 Ng4 12. hxg4 Bxd4 13. Rf1 a5 14. Na4 Qa7 15. Bf4 Ne5 16. Bxe5 dxe5 17. Rc1 Be6 18. b3 Rfd8 19. Qf3 b6 20. g5 Rd6 21. Rc2 Rad8 22. Rfc1 Qe7 23. c5 bxc5 24. Nxc5 Bxc5 25. Rxc5 Qxg5 26. Re1 Rd2 27. Qe3 Qxe3 28. Rxe3 Rxa2 0-1