Is this a draw?

[Carlos Pagador]

In the move 23, the same position is reached 3 times. Galis WBTM says this is a draw, changing the original result (0-1).

LPGNVer 1.14 doesn't agree. Either FindDraw. I suspect it has to be something about castle rules.

What do you think?

The game:

[Event "USA Qualy"]
[Site "PIV 1.5 GHz 256MB"]
[Date "2004.11.22"]
[Round "17"]
[White "Simontacchi 1.8a"]
[Black "Crafty 19.17"]
[Result "1/2-1/2"]
[TimeControl "300"]
[PairNo ""]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Bg5 h6 6. Bxf6 Bxf6 7. Qd2 Nc6 8.
Nf3 g5 9. d5 Nb4 10. a3 Na6 11. b4 e6 12. Be2 g4 13. Nd4 e5 14. Nc2 Bg5 15.
Qd1 h5 16. f3 f5 17. exf5 Bxf5 18. fxg4 hxg4 19. Bxg4 Bh4+ 20. Kd2 Bg5+ 21.
Ke1 Bh4+ 22. Kd2 Bg5+ 23. Ke1 Bh4+ 24. Kf1 Bg6 25. Ke2 Rf8 26. Bf3 Qe7 27.
g3 Bg5 28. Ra2 O-O-O 29. h4 Bh6 30. Ne3 Rxf3 31. Kxf3 Qf6+ 32. Ke2 e4 33.
Nxe4 Qe5 34. Kf1 Bxe4 35. Qg4+ Kb8 36. Ng2 Qd4 37. Ke1 Rf8 38. Rc2 Qa1+ 39.
Qd1 Qxa3 40. Rf2 Qxg3
{Galis: White resigns, but draw by 3x repetition detected!} 1/2-1/2

Carlos