Logic Masters Deutschland e.V.

This is my second attempt (after Determinant Sudoku) to use determinant-based clues. This puzzle is easier than the first one as all determinant values are known and equal to zero. (Info on Determinants in Wikipedia for further reading.)

Rules

SUDOKU: Normal Sudoku rules apply.

DETERMINANT: Brown squares are put in the centre of EACH 2x2 square/matrix that have determinant equal to 0 (zero). In other words: Multiplying the digits of each diagonal gives the same number.

KROPKI: Standard Kropki dots are put between cells that are NOT part of the SAME DETERMINANT clue. All black and white dots are given.

Note: Kropki dots does not apply if both cells are in the area of the same determinant clue (determinant clue areas are highlighted).

Solve online on F-Puzzles.

Have fun solving!