alpha-beta bug

[ZangChess]

Here's Zangchess again with the noobie questions!!

I have a simple alpha beta code ripped from
http://www.seanet.com/~brucemo/topics/alphabeta.htm

The thing is, when a search is done at 1, 3 , 5 or 7 ply it returns the "best" move for the side to play.
When a search is done at 2, 4, 6 or 8 ply it returns very strange moves that are in my humble opinion the "worst".

Has anyone experience with this?

[ZangChess]

Is it that simple?

Yes it is

This is why i visit the forum, people here help me!!

[Richard Allbert]

I had the same problem....... foxed me for months!