42. 8x8 Pento-Sudoku Competition

Many thanks to Aad van de Wetering of The Netherlands. He made this sudoku puzzle for us.
This puzzle contains the 12 pentominoes plus the square tetromino. Each row and column contains the numbers 1-8.
The sum in each pentomino is 22. You can solve this sudoku puzzle by logical thinking:

For more difficult sudoku: