4
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Can you find the number that should be placed instead of the xxxx?

0000A...
0111AB..
2012BB..
3103AB..
4140AAA.
4150AABB
xxxxAAAA

Good luck!

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  • 8
    $\begingroup$ Is the punctuation meaningful? $\endgroup$ – leoll2 Jun 24 '15 at 10:30
6
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The next term is:

5140AAAA

The terms in the sequence are:

A series of guesses in the game Mastermind. The number is the guess, the letters indicate how close the guess is to the hidden sequence: A represents a correct number in the correct position, B represents a correct number but not in the correct position. Since the letters for the last guess are AAAA, the last guess must be the hidden sequence.

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