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The Ultimate Cribbage Hand (Posted on 2006-06-07) Difficulty: 4 of 5
In Cribbage, a hand scores as follows:

  • 2 points for each set of cards that totals 15 (face cards count 10, aces count 1)
  • 2 points for each pair (this means 3-of-a-kind is worth 6 points and 4-of-a-kind is worth 12 points)
  • n points for each maximal straight containing n cards
  • (i.e. a four card straight does not also count as two three card straights)
  • n points for each maximal flush containing n cards
  • (i.e. a four card flush does not also count as four three card flushes)
  • 1 point for the jack of trumps

  • It's easy to show that the best five card hand is J5555, worth 29 points, and, although impossible in an actual game, the best six card hand would be 445566, worth 46 points.

    If the entire deck of 52 cards was considered to be a single cribbage hand, what would be its value?

    See The Solution Submitted by Jer    
    Rating: 3.3333 (3 votes)

    Comments: ( Back to comment list | You must be logged in to post comments.)
    re: Hey Charlie | Comment 14 of 21 |
    (In reply to Hey Charlie by tomarken)

    You're right.  the corrected program counts 32,064 ways of totaling 15, for a 64,128 contribution to the total points. I see this disagrees with Eric's total.  I'll have to see in the morning where the discrepancy lies.

    The corrected core of the program:

     IF tot9 = 15 THEN
      ways = 4 ^ den(1) * 6 ^ den(2) * 4 ^ den(3)
      overTot = overTot + ways
     ELSEIF tot9 = 5 THEN
      ways = 4 ^ (den(1) + 1) * 6 ^ den(2) * 4 ^ den(3)
      overTot = overTot + ways
     END IF


      Posted by Charlie on 2006-06-08 00:19:03
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