Logic Masters Deutschland e.V.

F-Puzzles Link

Rules

• Normal Sudoku rules apply.
• The grey circle must be an odd digit.
• Draw a one-cell width ring of orthogonally connected cells in the grid, that does not touch itself, even diagonally.
• The two cells marked in yellow are on the ring, and must contain the digits 1 and/or 9.
• Adjacent cells on the ring contain consecutive digits.
• The blue circle shows the sum of all ring cells in its 3x3 box.
• The two blue lines read as two-digit numbers, (possibly back-to-front,) and show the sum of all ring cells in their box or boxes.

Enjoy the fireworks on November 5th!

F-Puzzles Link

F-Puzzles Link