perplexus.info :: General : Unfilled grid

Unfilled grid (Posted on 2006-05-23)

Fill as much of a 6x6 grid with the letters A, B, C, D, E, F so no two of the same letter are in the same row, column or diagonal.

It is impossible to entirely fill the grid, but what is the largest number of letters that may be placed?

See The Solution Submitted by Jer

Rating: 4.1429 (7 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

Puzzle Answer

| Comment 6 of 7 |

The required largest number of letters to entirely fill the grid is 32.

Posted by K Sengupta on 2022-07-15 02:57:00

Please log in:

Forums (1)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (6)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info