Logic Masters Deutschland e.V.

This puzzle was created for Scojo's Setting Saturday Impostor prompt. For this challenge everyone had to create a puzzle typifying their own style, and then the following week, we were randomly assigned one of the other entrants, and had to make an imposter puzzle in that setter's style. Scojo then solved all 24 pairs of puzzle live on his Twitch.tv stream and tried to guess which puzzle was set by the imposter.

When I first got into setting sudoku puzzles I used to set puzzles for the CtC monthly prompt, and often used to use letters in the grid to represent numbers. This allowed me to write words and messages in the grid to fit the theme. So, I decided to make another puzzle along these lines.

You can see the puzzle set by my imposter here.

Rules

Each row, column & 3x3 box contains the digits 1-9.

Clues outside the grid are sandwich sums, and give the sum of the digits between the 1 & 9 in the row or column.

Some of the sandwich clues have been given as the sum of one or more values.

Some of the given digits and values in the sandwich sums have been replaced with letters. Every letter represents the same value wherever it appears.
Each letter represents a different digit, and all of these digits are from a set of consecutive values in some order.

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