Originally posted by grit
Yes it is the Faile chess engine.
I'd give gory details but the game is gone and I did not record it. But it moved almost before I could move and there were sudden moves going on with his knight. Came down quickly into my territory - took a piece and then disappeared back into it's own territory .
I'll try again tomorrow. But it was not like normal computer chess responses.
OK, it took me a while to get up to speed on this stuff. (I don't have an iPad; I'm not familiar with the iPad apps, so I had to do some Googling. )
The app is Ohm Chess HD, by Ohm Interactive. It looks like Ohm Interactive consists of two developers in Sweden who claim to have "a history in game development", but Ohm Chess is their first release for the iPad.
The developers say that Ohm Chess is based on the Faile chess engine. Faile version 1.4 is a Winboard chess engine for the Windows operating system, rated around 2000 to 2100 (not real strong) . The Faile license basically lets anyone use it, modify it, sell it, etc. in an unrestricted manner. So all the developers would have to do is to take the free Faile engine and modify it (port it) for the iPad operating system.
I just installed the Windows version of Faile 1.4 in Arena, and it seems to be working just fine. No odd moves. (It can't analyze positions, though. ) So if you're getting odd moves on your iPad, then it's possible the developers let some bugs slip through during the porting process. In that case, don't blame the engine programmer, blame the app developers.
I saw a review on the web for another app that looks interesting, but it's $8. tChess Pro, by Tom Kerrigan. It uses the Stobor engine (around 2500 rating) and you can adjust its rating lower so you have a chance to win. I'm not sure how this compares to the Shredder app. You'll have to read the reviews.
Edit - A little more info on the Winboard Faile engine. Go to this link, then pick the Faile engine from the pick list on the left.