Mastermind (from the 1980's)

This game is just under 2k in Ram and the limit for the game was 2k.  It's a guessing game based on the Mastermind game that came out in the 70's and 80's.

4 colours chosen at random from 10 available colours are hidden and revealed at the end whether you get it right or wrong.

Easy shows the black pegs in the correct column
Hard shows the black pegs from Left to Right