Back to 7x7 word squares.Here are my results confirming your numbers:
There are 147693 word squares, 125813 symmetrics and 21880 (2x 10940) non-symmetrics.
Scrabble-like: there are a total of 4452 word squares,
3820 are symmetric and 632 are not.
I confirm the maximum score of 188.
Here are the maximum for non symmetrics:
- Code: Select all
V A M P I N G V A M P I N G
A D O R N E R A D O R N E R
M O Z E T T A M O Z E T T E
P R E L A T Y P R E L A T Y
I N T A G L I I N T A G L I
N E T T L E S N E T T L E S
G R E Y I S H G R A Y I S H
164 164
Note that is bit tricky: there is only one letter which makes the word square non-symmetric G R E Y I S H - G R A Y I S H
There are 6 (2x3) "really non symmetric" word squares, i.e. all letters -except those on the main diagonal- are different of their main diagonal symmetric.
- Code: Select all
E S P A D A S S A C B U T S S A G B U T S
T E R M I N I P I L I N U T P I L I N U T
A M E N T A L A R E O L A R A R E O L A R
G A L E T T E C H A P A T I C H A P A T I
E T E S I A N I O N I S E D I O N I S E D
R I C I E S T E L E C T R O E L E C T R O
E C T A S E S R E D S E A R R E D S E A R
I will post some puzzles to solve.
JPF