2D dynamic bool array?

I want to create a 2D dynamic bool array (or char is fine too). I'm doing the n-queens problem and I've figured everything out except for this part. Any help?

Hello again. Thanks again guys for the suggestions. It sounds like everyone here knows a lot about recursion. So I have my last question. I've never used tail recursion and vaguely understand it right now, but I'll google it in a bit. My question is, can tail recursion fix this (note: 3 lines of code needed most likely): http://csx16.bol.ucla.edu/recursion.htm