Where's the Tuna Gator?
(Published on 17. February 2025, 03:26 by Scojo)
Rules:
- Normal sudoku rules apply: Place the digits 1-9 once each in every row, column, and 3x3 box.
- Negators: Place 9 'Negator' cells in the grid so that there is exactly one Negator in every row, column, and 3x3 box. Each Negator cell must contain a different digit. The value of a Negator cell is equal to -1 times the digit it contains.
- Sandwich: Clues outside the grid indicate the sum of the values between the digits 1 and 9 (whether or not 1 or 9 are negated) in that row or column.
Solve in SudokuPad

Solution code: Digits in the column containing the Tuna Gator (2 negator) from top to bottom
Solved by isajo4002, mathpesto, marcmees, SKORP17, Adrian71, efnenu, cbossut, Vyse, palpot, Nagesh, turtlepi, aqjhs, CauchySchwarz, Sotehr, karlmortenlunna, alexlovi, nico0000, joelth, mcs131313, RockyRoer, widjo, PippoForte
Comments
on 12. March 2025, 23:14 by alexlovi
Took me 70 minutes, that was hard and enjoyable! Thanks for sharing
on 25. February 2025, 06:04 by turtlepi
i colored mine brown and yellow
on 17. February 2025, 19:40 by Adrian71
I enjoyed this puzzle so much! Excellent setting, simple lovely. Thanks for the great fun!
on 17. February 2025, 15:35 by marcmees
Very nice. Thanks