Logic Masters Deutschland e.V.

Koala

The four grey cells (surrounded by pentominos) in this puzzle, are representative of a koala's face (a little).

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Solve on F-Puzzles: https://tinyurl.com/428f3je8
Solve on CTC SudokuPad: https://sudokupad.app/koh4piim8z

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RULES

Normal irregular 7x7 sudoku rules apply - digits (1-7) may not repeat in any row, column, region, or cage/pentomino. Additionally:

• Except for the four grey coloured cells, tile the grid with one pentomino of each of nine types (refer info below).
• The digits in a pentomino must sum to a multiple of the pentomino's english alphabet position - example: digits on an 'I' must sum to 9, 18, or 27.
• A pentomino is five orthogonally connected cells forming one of twelve unique shapes (whether they are flipped or rotated) represented by the letters: FILNPTUVWXYZ Refer to: https://simple.wikipedia.org/wiki/Pentomino

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