Free Daily Puzzle: Doppelblock 6×6 (0018)

“Doppelblock 6×6” Puzzle Rules:

Doppelblock is a logic puzzle played on a 6×6 grid.

• In each row and each column, exactly two cells must be blackened.

• The remaining white cells are filled with the numbers 1–4.

• Each number 1–4 appears exactly once in every row and every column.

Outside clues

• Numbers outside the grid show the sum of the digits located between the two black cells in that row or column.

• Only the digits strictly between the black cells are counted.

• If the two black cells are adjacent, the sum is 0.

The puzzle has a unique solution and can be solved using logic alone.

Solution of this Doppelblock 6×6 can be viewed by clicking on button. Please do give your best try to solve this Sudoku puzzle before looking at the answer.

Link to solve it online: Penpa+

View Doppelblock 6x6 Solution

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