Solution to Puzzle #191: 1×4 Rectangular Stone Plates

This was one of my favorite puzzles, though slightly difficult. Unfortunately I got only one correct answer this time, from Suman Saraf. Well done Suman!

The answer is “no”.

Solution to Puzzle #191

Look at the unusual coloring of the 10×10 board above. Please note that 52 of these are greyed out, while 48 are white. No matter how you place a 1×4 rectangular stone plate, it will always cover 2 grey cells and 2 white cells. Therefore if there was a way to cover the entire grid with 1×4 rectangular plate, one would need to have the same number of white and grey cells. But with our coloring, that is not the case.

Hope you all enjoyed the solution.

 

This entry was posted in Solution and tagged , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s