Advent Sudoku
Rather than using the numbers 1-9, this sudoku uses the nine different letters used to make the words "Advent Calendar".
Problem
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Like the conventional Sudoku, this Advent Calendar Sudoku consists of a grid of nine rows and nine columns subdivided into nine 3×3 subgrids.
However, rather than containing the numbers 1 to 9, this sudoku contains the nine different letters which are used in the words "Advent Calendar".
There are still two basic rules:
1. Each column, each row, and each box (3×3 subgrid) must have each of the nine letters (A, C, D, E, L, N, R, T, V).
2. No column, row or box can have two squares with the same letter.
Student Solutions
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