1.
c4
e6
2.
g3
Nf6
3.
Bg2
c5
4.
Nf3
Nc6
5.
O-O
Be7
6.
Nc3
O-O
7.
d4
cxd4
8.
Nxd4
a6
9.
b3
Qa5
10.
Bb2
Rb8
11.
a3
Nxd4
12.
Qxd4
d6
13.
b4
Qc7
14.
Rac1
b6
15.
e4
Bb7
16.
Nd1
Bc6
17.
Ne3
Qb7
18.
f3
Rfd8
19.
Rfe1
Rbc8
20.
Qd2
Nd7
21.
Bc3
b5
22.
Kh1
Ne5
23.
Bxe5
dxe5
24.
Qc3
bxc4
25.
Nxc4
Bb5
26.
Qb3
Qc7
27.
Bf1
Rd4
28.
Ne3
Qxc1
29.
Rxc1
Rxc1
30.
Kg2
Rd2+
31.
Kh3
Bxf1+
32.
Nxf1
Rxf1
33.
Qc3
Rff2
34.
Qc8+
Bd8
0-1
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Event
Site
London
Date
1973.09.09
Round
4
White
Perkins, Alan H
Black
Johnston, Dafydd
Result
0-1
Score
[Event "London CC Invitation"] [Site "London"] [Date "1973.09.09"] [Round "4"] [White "Perkins, Alan H"] [Black "Johnston, Dafydd"] [Result "0-1"] 1. c4 e6 2. g3 Nf6 3. Bg2 c5 4. Nf3 Nc6 5. O-O Be7 6. Nc3 O-O 7. d4 cxd4 8. Nxd4 a6 9. b3 Qa5 10. Bb2 Rb8 11. a3 Nxd4 12. Qxd4 d6 13. b4 Qc7 14. Rac1 b6 15. e4 Bb7 16. Nd1 Bc6 17. Ne3 Qb7 18. f3 Rfd8 19. Rfe1 Rbc8 20. Qd2 Nd7 21. Bc3 b5 22. Kh1 Ne5 23. Bxe5 dxe5 24. Qc3 bxc4 25. Nxc4 Bb5 26. Qb3 Qc7 27. Bf1 Rd4 28. Ne3 Qxc1 29. Rxc1 Rxc1 30. Kg2 Rd2+ 31. Kh3 Bxf1+ 32. Nxf1 Rxf1 33. Qc3 Rff2 34. Qc8+ Bd8 0-1