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?
(In reply to
Puzzle Answer by K Sengupta)
A maximum of 32 letters my be placed inside the 6x6 grid.
The arrangement is shown hereunder as follows:
+--------------------------------------+
| A B C D E F |
+--------------------------------------+
| D E A F B C |
+--------------------------------------+
| F C D A |
+--------------------------------------+
| B D C E |
+--------------------------------------+
| C A E B F D |
+--------------------------------------+
| E F D C A B |
+--------------------------------------+
Edited on July 16, 2022, 12:06 am