Chandu Rajyaguru

The computer chose a secret code (sequence of 4 digits from 1 to 6). Your goal is to find that code. Black circles indicate the number of hits on the right spot. White circles indicate the number of hits on the wrong spot.

If 8b76a - ab021 = c07bb find number abc. Multiple solutions may exist.

NUMBERMANIA: Calculate the number 897 using numbers [1, 2, 4, 5, 53, 209] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.