Codebreaker Logic Puzzle

Can you name the correct alphanumeric code for each cell on the grid?

Forced Order Answers have to be entered in order
Minefield Wrong answers will end the quiz
Wrong Answers Some wrong answers will appear in red
0/25
20:00
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  • Instructions: A burglar is trying to break into a bank vault. To get into the vault he needs to disarm the security system. The system contains 25 cells arranged in a 5x5 square, with each cell requiring a unique code consisting of a number and a letter (e.g. 1A, 2T, 17H, 25Y). Entering an incorrect code will trigger the alarm, alerting the police. Following the clues in the puzzle can you break into the vault?
    The numbers 1-25 and letters A-Y are used in the codes, with each letter and each number used only once. High letters refer to letters later in the alphabet than low letters. (A is the lowest letter, Y is the highest in this puzzle). Diagonals refer only to the two 5-cell diagonals going corner to corner. This puzzle can be solved without guessing!
Classic: Type in answers that appear in a list
Forced Order: Answers have to be entered in order
Minefield: Wrong answers will end the quiz
Wrong Answers: Some wrong answers will appear in red
Last Updated: Sep 24, 2017
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