No no, the goal is to get the piece in the top-left down to the bottom-right. See other email from rwg. --Michael On Fri, Feb 22, 2013 at 11:17 AM, Robert Munafo <mrob27@gmail.com> wrote:
On Fri, Feb 22, 2013 at 11:12 AM, Allan Wechsler <acwacw@gmail.com> wrote:
What is the objective?
I think that's the essence of the problem:
Find a set of 9 consecutive moves that does not repeat the same position twice (where a move is of one piece along any path, and presumably moving to a fractional position isn't allowed).
http://gosper.org/4x4-0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0.gif
On Thu, Feb 21, 2013 at 8:35 PM, Bill Gosper <billgosper@gmail.com> wrote:
Hans reminds me not to underestimate this audience. http://gosper.org/4x4-0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0.gif . Three pieces, nine(!) moves. --rwg
On Thu, Feb 21, 2013 at 1:51 AM, Bill Gosper <billgosper@gmail.com> wrote:
Neil is tabulating the "hardest" 4x4s according to polyomino size histogram. Some of the short ones are tricky. E.g., a four-piecer: http://gosper.org/4x4-3,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0.gif . Five moves to get the tetromino to the lower right, where a move is of one piece along any path. --rwg
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