Consecutive Horizontal Blocks

[nmarie22]

Hi!

I've really enjoyed reading through your Unblock Me puzzle solver. It must have been fun to write! I chose this program to analyze for an algorithm description paper for a class and noticed a possible error (although I could be wrong!).

• Assumption: blocks can be either two or three tiles long. If a horizontal block clocks in at four tiles long, it must be two consecutive two tile blocks (line 101 in your C++ 11 code).
• Possible problem: But what if the two consecutive blocks are a three tile long block and a two tile long block? That would create a five tile long block and wouldn't get handled. Could there be Unblock Me levels that utilize this board layout and couldn't be solved by your program? Or am I missing something?

I'm sure this code is long past in your mind and you've moved on to bigger and better things, but I know I always enjoy going through my old code and finding things that I missed way back when I wrote it. Just wanted to point this out. Thanks for this project! I love how you read in the board state by a bitmap of the screenshot. It's been a joy to study it.