Free Daily Puzzle: Doppelblock 8×8 (0055)

“Doppelblock 8×8” Puzzle Rules:

Doppelblock is a logic puzzle played on an 8×8 grid.

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

• The remaining white cells are filled with the numbers 1–6.

• Each number 1–6 appears exactly once in every row and every column.

Outside clues

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

• Only digits strictly between the black cells are counted.

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

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

Solution of this Doppelblock 8×8 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 8x8 Solution

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