No. XXXVII

This is the arrangement of the 32 letters in the 64 cells—

A EI O
EO AI
AIEO
I O A E
O I E A
EOAI
AI EO
E AO I

[Image]

No A is in the same column, row, or diagonal with another A, no E with another E, no I with another I, and no O with another O.

Return to [description]