Logic Masters Deutschland e.V.

• Normal sudoku rules apply.
• Shade some cells so that the shaded cells form a single orthogonally connected region and no 2x2 area is completely shaded or unshaded. Unshaded cells must also form a single orthogonally connected region. If D is a digit in a shaded cell the value of that shaded cell is -D. Values of non-shaded cells are the same as the digit they contain.
• Values in cages must sum to the indicated total. Digits cannot repeat inside a cage.
• Cells on an arrow have a value sum equal to the value of its circle.
• Clues outside the grid show the value sum of the indicated diagonals.
• Cells joined by a black dot have values that are in a 1:2 ratio. Not all possible dots are given.

Online in Sudokupad

See also:

• obezyanka nol
• null lol