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MathMagic Cycle 17: Level K-3 Regular  (Practice help needed here)

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The activity has several names (I learned it a "few" years ago as Pegs)
but currently it is being marketed in the US under the name of Travel
Mastermind by Pressman Toy Corp.of New York (item #2218) - it should be
available in all major supermarkets (and, no, I have no ties with the
company ;-)

The object of the game is for one player (team) to try to "break the
code" the other player has built by setting four CODE PEGS in some order
using any combination of six colors, red, blue, yellow, green, orange
and brown. To begin the game, one team sets up their code (say GN BU OR
and RD) - the other team then tries to "break the code" by guessing at
the colors and the positions. Let's say the second team picks BN BU YW
and OR. From left to right, the BN receives no KEY PEGS from the first
team (they are responding to the attempt the other team is doing to
break their code) , the BU is a color match and a position match so it
gets a black (BK) KEY PEG, YW gets nothing and OR gets nothing. Each
team must use skill in giving out the answer and figuring out the pos-
sible order. The attempts/responses continue until the code is broken.
Some more examples with responses:

     CodeMaker: RD BU GN BN       YW BU YW BN       RD BU RD YW
   CodeBreaker: OR YW GN GN       RD YW GN OR       GN RD RD OR
     CodeMaker
        answer: BK                WH                WH BK

        Tactic: Rather than       Yellow is a       One red matches
               a white for        color match       color the other
               position a BK                        matches position
               for color match

To play, the team that is the CodeMaker at first, sends out a blank
invitation:
               (  ) (  ) (  ) (  )

Their NTP should respond with their first guess:

               (  ) (  ) (  ) (  )
               (BL) (BL) (YW) (YW)

The CodeMaker responds:

               (  ) (  ) (  ) (  )
               (BU) (BU) (YW) (YW)
                  (  )              (No hits) so the CodeBreaker tries:

               (  ) (  ) (  ) (  ) }
               (BU) (BU) (YW) (YW) }Notice how the whole exchange keeps
                  (  )             } accumulating - LOTS of cut and
               (GN) (RD) (OR) (BN) } paste here...

A CodeBreaker's job is NOT DONE if the team cannot explain why they
chose the moves and colors they did. So, the last step before switching
roles (The CodeBreakers become the CodeMakers) is to explain their
moves. This means that GOOD note keeping is essential.

The *FINAL* posting may turn out to be a very lengthy file, because
there will be TWO explanations. Don't give up, and maybe you should get
your own Peg (sorry, Mastermind) board.
Good luck
MrH

ps.Adjust freely - CodeMaker could use [  ] while CodeBreaker uses (  )