PRACTICE : 4 reel lock - STANDARD



   Add a Clue
-The first reel plus the last reel equals 15
-The smallest and largest digits have a difference of 3
-Reel A plus reel D is 3 more than reel C plus reel B
-Reel D is a square number > 0
 A B C D 
Time 00:00
Input 4 digit answer


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