1.
c4
g6
2.
g3
Bg7
3.
Bg2
Nf6
4.
Nc3
O-O
5.
d4
d6
6.
Nf3
c5
7.
O-O
Nc6
8.
d5
Na5
9.
Nd2
a6
10.
Qc2
Rb8
11.
b3
b5
12.
Bb2
e5
13.
Rab1
Bd7
14.
e3
Ng4
15.
Nd1
f5
16.
f3
Nf6
17.
f4
e4
18.
Nf2
h5
19.
h4
Qe7
20.
Rfe1
Rb6
21.
Bc3
Nb7
22.
Bf1
1/2-1/2
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Event
Site
Amsterdam
Date
1969.??.??
Round
3
White
Hartoch, Robert G
Black
Result
1/2-1/2
[Event "IBM"] [Site "Amsterdam"] [Date "1969.??.??"] [Round "3"] [White "Hartoch, Robert G"] [Black "Byrne, Robert Eugene"] [Result "1/2-1/2"] 1. c4 g6 2. g3 Bg7 3. Bg2 Nf6 4. Nc3 O-O 5. d4 d6 6. Nf3 c5 7. O-O Nc6 8. d5 Na5 9. Nd2 a6 10. Qc2 Rb8 11. b3 b5 12. Bb2 e5 13. Rab1 Bd7 14. e3 Ng4 15. Nd1 f5 16. f3 Nf6 17. f4 e4 18. Nf2 h5 19. h4 Qe7 20. Rfe1 Rb6 21. Bc3 Nb7 22. Bf1 1/2-1/2