If I were to buy an LED model...

[Don Shepherd]

(11-16-2019 01:53 AM)Dave Britten Wrote:  Here's the ol' 15-puzzle solvability checker, ported pretty much directly from Don's 65 version.

This thread contains the 65, 67, and 17b versions of the 15 puzzle solvability checker that Dave referred to.

I was indebted to Dave for showing me how to implement this program on the 65. I particularly like the 17b version, it demonstrates a good use of the ITEM solver function; you can enter the tile positions in a list rather than entering them during the execution of the program.