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Fifteen checkers on the bar, fewest moves

Posted By: Keene
Date: Wednesday, 9 June 2010, at 6:35 p.m.

In Response To: Fifteen checkers on the bar, fewest moves (Nack Ballard)

Since it will take 11 distinct checker plays to turn the starting position into 15 blots, thats technically 3 sets to do that. Once all checkers are blots, opponent requires 15 checker plays to hit all of them - 4 sets of doubles, so you are looking at 7 move pairings to complete.

Obviously, I havent figured out what they are, but doubtless its a bunch of 3s,4s,5s or 6s to split them all up, and probably a large number of 1s, 2s or 3s to collect them all.

Messages In This Thread

• Fifteen checkers on the bar, fewest moves
  Nack Ballard -- Wednesday, 9 June 2010, at 2:35 a.m.
  • Fifteen checkers on the bar, fewest moves
    Daniel Murphy -- Wednesday, 9 June 2010, at 3:51 a.m.
    • Fifteen checkers on the bar, fewest moves
      Stick -- Wednesday, 9 June 2010, at 3:59 a.m.
      • Fifteen checkers on the bar, fewest moves
        Daniel Murphy -- Wednesday, 9 June 2010, at 4:22 a.m.
        • Fifteen checkers on the bar, fewest moves
          Christian Munk-Christensen -- Wednesday, 9 June 2010, at 7:54 a.m.
  • Fifteen checkers on the bar, fewest moves
    Michael Nielsen -- Wednesday, 9 June 2010, at 5:06 p.m.
    • 7 rolls
      Michael Nielsen -- Wednesday, 9 June 2010, at 6:19 p.m.
      • 7 moves of course *NM*
        Michael Nielsen -- Wednesday, 9 June 2010, at 6:27 p.m.
      • 7 rolls
        Ray Kershaw -- Wednesday, 9 June 2010, at 7:37 p.m.
      • Now with six-point prime, please :)
        Nack Ballard -- Thursday, 10 June 2010, at 12:32 a.m.
        • Now with six-point prime, please :)
          Matt Cohn-Geier -- Thursday, 10 June 2010, at 12:34 a.m.
          • Now with six-point prime, please :)
            Nack Ballard -- Thursday, 10 June 2010, at 1:00 a.m.
            • Now with six-point prime, please :)
              Daniel Murphy -- Thursday, 10 June 2010, at 1:25 a.m.
              • Slot Rule (a.k.a. "slotgammon")
                Nack Ballard -- Thursday, 10 June 2010, at 1:45 a.m.
            • Now with six-point prime, please :)
              Matt Cohn-Geier -- Thursday, 10 June 2010, at 1:25 p.m.
              • Now with six-point prime, please :)
                Timothy Chow -- Thursday, 10 June 2010, at 3:30 p.m.
                • Now with six-point prime, please :)
                  Matt Cohn-Geier -- Thursday, 10 June 2010, at 6:22 p.m.
          • Mind-boggling puzzles
            Timothy Chow -- Thursday, 10 June 2010, at 5:25 a.m.
            • OT: Another example
              Timothy Chow -- Thursday, 10 June 2010, at 5:31 a.m.
              • OT: Another example
                Nack Ballard -- Thursday, 10 June 2010, at 7:15 a.m.
                • OT: Another example
                  Timothy Chow -- Saturday, 12 June 2010, at 1:05 a.m.
                  • OT: Another example
                    Nack Ballard -- Saturday, 12 June 2010, at 4:04 a.m.
  • Fifteen checkers on the bar, fewest moves
    Keene -- Wednesday, 9 June 2010, at 6:35 p.m.
    • Fifteen checkers on the bar, fewest moves
      Nack Ballard -- Thursday, 10 June 2010, at 12:18 a.m.