What a winning combination?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.
A busload of tourists arrives at Runnymede, just west of central London.
They gather around the guide who says: “This is the spot where the barons forced King John to sign the Magna Carta."
A guy at the front of the crowd asks: "When did that happen?”
“1215,” answers the guide.
The man looks at his watch and says: “Damn! Missed it by a half hour.”