Logic Masters Deutschland e.V.

My heartfelt thanks to Hatgurl for forcing Scojo's setting prompt this week, despite his protestations. "A Secret Surprise When You Flip It Upside Down" truly is an inspirational prompt and has led to some hilarious and/or brilliant ideas. I must confess I've edited my puzzle a little to make the solve a little smoother, and more importantly to uphold my reputation on LMD as a mature and respectable setter.



Mean Mini: Select 5 digits from the range 0-9, then normal 5x5 Latin Square rules apply; i.e. place a digit from your selection into every cell such that digits do not repeat in a row or column.

Arrows: Digits along a light grey arrow sum to the digit in the attached circles.

Ten Lines: Dark grey lines can be split into distinct segments whose digits sum to 10.

Palindromes: Dark grey lines can be split into distinct segments that act as palindromes, i.e. the digits along the segment read the same forwards and backwards. No two palindrome segments are the same length. (N.B. A 1-cell "palindrome" is allowed)

Odd: Translucent grey circles must contain an odd digit.