Solution Step 0/0
When was the latest year that is the same upside down?
Which are the digits in that year?
Which are the digits in that year?
Explanations
1961One even and three odd digits.
[After Boris A. Kordemsky. The Moscow Puzzles: 359 mathematical recreations. 1972]
Check 2 even, 2 odd
Check 3 even, 1 odd
Check 1 even, 3 odd
Check All even
