1.
Nc3
d5
2.
d4
Bf5
3.
f3
e6
4.
e4
Bg6
5.
Nge2
c6
6.
Nf4
Bb4
7.
Be3
dxe4
8.
Bc4
Qa5
9.
Kd2
Nf6
10.
Ne2
exf3
11.
gxf3
Nbd7
12.
Qg1
Nb6
13.
Bb3
Na4
14.
Bxa4
Qxa4
15.
b3
Qa3
16.
Qc1
Qa5
17.
a3
Bxc3+
18.
Nxc3
Qf5
19.
Ke2
O-O
20.
Ra2
Bh5
21.
Qf1
e5
22.
dxe5
Qxe5
23.
Nd1
Rfe8
24.
c4
Ne4
25.
Kd3
Nc3
26.
Bd4
Rad8
27.
Kxc3
Qxd4+
28.
Kb4
a5+
29.
Ka4
b5+
30.
Kxa5
Qc5
31.
Ka6
Ra8+
32.
Kb7
Ra7#
0-1
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Event
Site
Islington
Date
1971.12.13
Round
4
White
Mabbs, David J
Black
Bernegger, Alfred
Result
0-1
Score
[Event "Islington op 7th"] [Site "Islington"] [Date "1971.12.13"] [Round "4"] [White "Mabbs, David J"] [Black "Bernegger, Alfred"] [Result "0-1"] 1. Nc3 d5 2. d4 Bf5 3. f3 e6 4. e4 Bg6 5. Nge2 c6 6. Nf4 Bb4 7. Be3 dxe4 8. Bc4 Qa5 9. Kd2 Nf6 10. Ne2 exf3 11. gxf3 Nbd7 12. Qg1 Nb6 13. Bb3 Na4 14. Bxa4 Qxa4 15. b3 Qa3 16. Qc1 Qa5 17. a3 Bxc3+ 18. Nxc3 Qf5 19. Ke2 O-O 20. Ra2 Bh5 21. Qf1 e5 22. dxe5 Qxe5 23. Nd1 Rfe8 24. c4 Ne4 25. Kd3 Nc3 26. Bd4 Rad8 27. Kxc3 Qxd4+ 28. Kb4 a5+ 29. Ka4 b5+ 30. Kxa5 Qc5 31. Ka6 Ra8+ 32. Kb7 Ra7# 0-1