1.
e4
e5
2.
f4
d5
3.
exd5
c6
4.
Nc3
exf4
5.
Nf3
Bd6
6.
Bc4
cxd5
7.
Bxd5
Ne7
8.
Bb3
O-O
9.
d4
Bg4
10.
O-O
Nbc6
11.
Ne4
Ng6
12.
c3
Nh4
13.
Nxd6
Qxd6
14.
Qd2
Bxf3
15.
gxf3
g5
16.
Qf2
Rae8
17.
Kh1
h6
18.
Rg1
Kh8
19.
Bd2
Na5
20.
c4
Nxb3
21.
axb3
Qg6
22.
Bxf4
Qd3
23.
Rgd1
Qxb3
24.
Bd6
Rg8
25.
Qf1
Qc2
26.
Be5+
Kh7
27.
Rxa7
f6
28.
Rxb7+
Rg7
29.
Rxg7+
Kxg7
30.
Bg3
Re2
31.
Re1
Rxe1
32.
Bxe1
Qd1
33.
c5
Nxf3
34.
c6
Nxd4
35.
c7
Qc1
36.
c8=Q
Qxc8
37.
Bc3
Qc6+
38.
Qg2
Nf3
39.
h4
Qe4
40.
Qf2
Nxh4+
41.
Kg1
Nf3+
42.
Kf1
g4
43.
Qb6
Qf4
44.
Ke2
Ne5
45.
Qe3
Qxe3+
46.
Kxe3
Kf7
47.
Be1
Ke6
48.
b4
h5
49.
b5
Kd5
50.
Bg3
Kc5
51.
Ke4
Kxb5
52.
Kf5
Nf3
53.
Bb8
Kc4
54.
Kxf6
h4
55.
Kf5
g3
56.
Ke4
g2
57.
Ba7
Ng5+
1/2-1/2
Opening Explorer
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Event
Site
Philadelphia
Date
1993.??.??
Round
8
White
Yedidia, Jonathan
Black
Costigan, Richard
Result
1/2-1/2
WhiteElo
2365
BlackElo
2295
[Event "World op 21st"] [Site "Philadelphia"] [Date "1993.??.??"] [Round "8"] [White "Yedidia, Jonathan"] [Black "Costigan, Richard"] [Result "1/2-1/2"] [EventArchiveKey "world-open-1993"] [WhiteElo "2365"] [BlackElo "2295"] 1. e4 e5 2. f4 d5 3. exd5 c6 4. Nc3 exf4 5. Nf3 Bd6 6. Bc4 cxd5 7. Bxd5 Ne7 8. Bb3 O-O 9. d4 Bg4 10. O-O Nbc6 11. Ne4 Ng6 12. c3 Nh4 13. Nxd6 Qxd6 14. Qd2 Bxf3 15. gxf3 g5 16. Qf2 Rae8 17. Kh1 h6 18. Rg1 Kh8 19. Bd2 Na5 20. c4 Nxb3 21. axb3 Qg6 22. Bxf4 Qd3 23. Rgd1 Qxb3 24. Bd6 Rg8 25. Qf1 Qc2 26. Be5+ Kh7 27. Rxa7 f6 28. Rxb7+ Rg7 29. Rxg7+ Kxg7 30. Bg3 Re2 31. Re1 Rxe1 32. Bxe1 Qd1 33. c5 Nxf3 34. c6 Nxd4 35. c7 Qc1 36. c8=Q Qxc8 37. Bc3 Qc6+ 38. Qg2 Nf3 39. h4 Qe4 40. Qf2 Nxh4+ 41. Kg1 Nf3+ 42. Kf1 g4 43. Qb6 Qf4 44. Ke2 Ne5 45. Qe3 Qxe3+ 46. Kxe3 Kf7 47. Be1 Ke6 48. b4 h5 49. b5 Kd5 50. Bg3 Kc5 51. Ke4 Kxb5 52. Kf5 Nf3 53. Bb8 Kc4 54. Kxf6 h4 55. Kf5 g3 56. Ke4 g2 57. Ba7 Ng5+ 1/2-1/2