Logic Masters Deutschland e.V.

Rules:

• Normal sudoku rules apply.
• Normal masyu rules apply.
• Digits on the masyu line separated by a white circle must have a difference of 1.
• Digits on the masyu line separated by a black circle must have a ratio of 1:2.
• In boxes 1, 3, 4, 6, 7, and 9 (marked yellow) 1 is considered as an additional white circle, and 2 as an additional black circle.
• Green lines are parts of the masyu loop.

Masyu rules:

• Draw a line through all black and white circles in one single loop that can't branch or cross itself.
• Lines can't be diagonal.
• The line must turn 90 degrees on black dots, and go straight 1 additional cell after the turn at both sides.
• The line must go straight through white dots but must turn after it (on one or both sides)

Solve in:

• f-puzzles
• CTC app