(Eingestellt am 31. Januar 2026, 17:45 Uhr von cygne)
Penpalindromes Are Numbered One by Cygne
Rules
Normal Sudoku rules apply.
Palindrome Lines: Digits along a grey line read the same forward and backward.
Numbered Rooms: Clues outside the grid indicate the digit which has to be placed in the Nth cell in the corresponding direction, where N is the digit placed in the first cell in that direction.