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3 x 5 backgammon puzzle

Posted By: Nack Ballard
Date: Monday, 21 June 2010, at 3:42 a.m.

From the starting position of backgammon, what is the least number of moves by which both players can obtain THREE checkers on each of FIVE points?

Extra credit:

Given that least number of moves,

(a) Produce a solution with as large a difference in pipcount (between the two players) as possible.
(b) Produce a solution with as small a difference in pipcount as possible.

Have fun!

Nack

Messages In This Thread

• 3 x 5 backgammon puzzle
  Nack Ballard -- Monday, 21 June 2010, at 3:42 a.m.
  • 3 x 5 backgammon puzzle
    Bob Koca -- Monday, 21 June 2010, at 5:54 a.m.
    • 3 x 5 backgammon puzzle
      Stick -- Monday, 21 June 2010, at 5:59 a.m.
      • 3 x 5 backgammon puzzle, my answer
        Bob Koca -- Monday, 21 June 2010, at 6:16 a.m.
        • 3 x 5 backgammon puzzle, my answer
          Bob Koca -- Monday, 21 June 2010, at 6:30 a.m.
  • Most checkers on the bar
    Stein Kulseth -- Monday, 21 June 2010, at 10:27 a.m.
    • 3 x 5 backgammon puzzle
      Stein Kulseth -- Monday, 21 June 2010, at 10:29 a.m.
      • 3 x 5 backgammon puzzle
        Stein Kulseth -- Monday, 21 June 2010, at 10:50 a.m.
        • 3 x 5 backgammon puzzle
          Nack Ballard -- Monday, 21 June 2010, at 5:25 p.m.
          • 3 x 5 backgammon puzzle (slight spoiler)
            Stein Kulseth -- Monday, 21 June 2010, at 9:19 p.m.
            • 3 x 5 backgammon puzzle (slight spoiler)
              Nack Ballard -- Monday, 21 June 2010, at 10:38 p.m.
              • 3 x 5 backgammon puzzle (slight spoiler)
                Stein Kulseth -- Tuesday, 22 June 2010, at 12:38 a.m.
                • 3 x 5 backgammon puzzle (slight spoiler)
                  Stein Kulseth -- Tuesday, 22 June 2010, at 1:19 a.m.
                  • 3 x 5 backgammon puzzle (partial answer)
                    Nack Ballard -- Tuesday, 22 June 2010, at 3:58 a.m.
                    • 3 x 5 backgammon puzzle (partial answer)
                      Nack Ballard -- Tuesday, 22 June 2010, at 8:14 a.m.
                      • 3 x 5 backgammon puzzle (partial answer)
                        Stein Kulseth -- Wednesday, 23 June 2010, at 12:21 p.m.
                        • 3 x 5 backgammon puzzle (partial answer)
                          Stein Kulseth -- Wednesday, 23 June 2010, at 4:19 p.m.
                          • 3 x 5 backgammon puzzle (partial answer)
                            Nack Ballard -- Wednesday, 23 June 2010, at 9:32 p.m.