Logic Masters Deutschland e.V.

Detailed rules:

• Normal Sudoku rules apply. Place the digits 1 through 9 in each empty cell. Digits must not repeat within the same row, column, or box.
• The digits in a cage must sum to the number printed in its corner. Digits may not repeat within a cage.
• Digits along each thermometer must increase starting from the bulb end.
• Digits along diagonals pointed to by arrows outside the grid must sum to the number listed. Digits may repeat along the diagonal if otherwise allowed by normal Sudoku rules.
• The digits along each arrow must sum to the digit in the circled cell. Digits may repeat along an arrow if permitted by other rules.