Puzzle 1

Use the letters S U G R E N A T H to fill in the missing spaces. Be sure not to repeat any letter in each row, column, or 3×3 square.

Puzzle 2

Use the numbers 1 2 3 4 5 6 7 8 9 to fill in the missing spaces. Be sure not to repeat any number in each row, column, or 3×3 square.