Raetsel der Woche

von andrewdyck (55 %, 4 x 4):

A

1, 2, 3, 4, 5, 6, 7, 8, 9

B

1, 2, 3, 4, 5, 6, 7, 8, 9

C

1, 2, 3, 4, 5, 6, 7, 8, 9

D

1, 2, 3, 4, 5, 6, 7, 8, 9

E

1, 2, 3, 4, 5, 6, 7, 8, 9

F

1, 2, 3, 4, 5, 6, 7, 8, 9

No zeros occur in this puzzle.
**Contains each digit (1-9) at least once**

Across:
A: A prime number.
C: A multiple of the root of F across.
D: The subtraction of A across from A down.
F: A square number.

Down:
A: A square number and palindrome.
B: A square number.
C: A palindrome.
E: A prime number.