The problem below (Moscow Puzzles #313) can be solved in more than 4 ways,
(each d1 by itself) - using different approaches.

Find the number t and the digit represented by k in:
[3*(230+t)]^2=492,k04

List your ways of solving it.

(In reply to Simple way to determine t by Steve Herman)

Actually, you showed t must end in 4 or 6.  Of course, you'd find it right away if you started with 4 by sheer luck.  It could potentially take a while.

Posted by Jer on 2017-12-21 21:15:25