On 8/7/07, <b class="gmail_sendername">Hugh Perkins</b> &lt;<a href="mailto:hughperkins@gmail.com">hughperkins@gmail.com</a>&gt; wrote:<div><span class="gmail_quote"></span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<span class="q"></span>Question: what do you mean by, for example 25x25?&nbsp; Do you mean grids with a total length of 25 on each side, eg:<br></blockquote></div><br>(because on my super-dooper 1.66GHz Celeron, generating 10 random 25x25 grids such as the one above takes about 
1.01 seconds; solving an actual puzzle should be faster because the solution space is more tightly constrained?)<br><br>