Wow! I admire your ingenuity and productivity with these projects. - what higher level courses have you taken at NAU? - do you use greenfoot for class also? - what kind of software development do you hope to do when you graduate? Games? - do you already have a job or grad school lined up?

Thanks! =) - Some courses include Algorithms, Architectures, Principles of Languages, Operating Systems, Security, Networking, User Interfaces - I was introduced to Greenfoot in a High School class and have not used it for school since. - I envisioned doing games, but the job I have lined up that I found through a career fair will be more general software development. Unfortunately, I did not apply anywhere. But I'm sure I will continue making games on the side just like I have done through school.

@Bourne if you have not looked into unity3d yet you might want to check it out. EA-Mythic (fairfax-va) uses this as their primary development tool and the best thing is it is 100% free for personal or commercial use (they get their money on the compile to iphone and compile to android modules they have) www.unity3d.com

Sometimes a piece will be unable to move for seemingly no reason, and all of the possible spaces will be filled in with red. Is this a glitch, or is this because of some rule that I don't know of?

If that is not the case, then if you have the Jave Console open next time it happens, copy the printed move history of that game so I can reproduce the problem.

I once had the computer move its Queen through one of my pawns to get to my Queen. It only happened the one time and I have not been able to re-produce it since.

I think the bug that Entity1037 was referring to deals with a dragging issue. Something is not being correctly set when dragging ends (maybe the dragged piece is not being cleared when not moved or something).

Here is an example of the jumping Queen. Medium setting, player (w) against computer (b). MV | WHITE | BLACK ---+-------------+-------------- 1 | e2e4 | b8c6 2 | d2d4 | g8f6 3 | b1c3 | a8b8 4 | e4e5 | f6g8 5 | f2f4 | b8a8 6 | g1f3 | a8b8 7 | c1d2 | b8a8 8 | c3e4 | d7d5 9 | e4c5 | c8g4 10 | c2c3 | b7b6 11 | c5d3 | d8d7 12 | h2h3 | g4f5 13 | d1e2 | f5e4 14 | f3g5 | c6d4xP 15 | c3d4xn | e4f5 16 | g2g4 | f5g6 17 | f4f5 | h7h6 18 | f5g6xb | h6g5xN 19 | g6f7xp+ | e8f7xP 20 | d2g5xp | f7g6 21 | h3h4 | d7a4 22 | d3f4+ | g6h7 23 | e2d3+ | a4e4+ ?????

Thanks Danpost! I found the bug. When the AI checked the Queen's movement possibilities to the right, it found the pawn, checked to see what happens if it captured it, finds out its King is still in check, so continued with path. The execution break for the path (to the right), when it found a piece (the pawn) occurred after the king check, so was skipped.

Something weird happened to my machine - If I am running java (jboss) somewhere else the 2 instances fight for resource. I killed the other process and it seems to be ok now.