Cows 'n' Bulls

from , originally released 31st December, 1969

Cows n Bulls is a no frills brain activity game. Device guesses a 4-digit number (digits 1-9 only and non-repeating). Find the number in 7 attempts. For each guess, device will respond in C(cows) and B(bulls).
Cow - Right digit in wrong place.
Bull - Right digit in right place.

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