It's not regular Sudoku – it's Sam Seidel Sudoku!

Fill in the grid so that each row, each column and each 3x3 frame contains every number from 1 to 9. But instead of numbers, use the letters in Sam's name, like so:

1 – S1
2 – A
3 – M
4 – S2
5 – E1
6 – I
7 – D
8 – E2
9 – L

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Puzzle 1 (PDF)

Solution to Puzzle 1 (PDF)

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Puzzle 2 (PDF)

Solution to Puzzle 2 (PDF)

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Puzzle 3 (PDF)

Solution to Puzzle 3 (PDF)

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Puzzle 4 (PDF)

Solution to Puzzle 4 (PDF)