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 Dragon Hunting (Posted on 2004-12-10)
Prince Valiant went to fight a 3-headed, 3-tailed dragon.

He has a magic sword that can, in one stroke, chop off either one head, two heads, one tail, or two tails.

This dragon is of a type related to the hydra; if one head is chopped off, a new head grows. In place of one tail, two new tails grow; in place of two tails, one new head grows; if two heads are chopped off, nothing grows.

What is the smallest number of strokes required to chop off all the dragon's heads and tails, thus killing it?

 See The Solution Submitted by SilverKnight Rating: 3.7778 (9 votes)

Comments: ( You must be logged in to post comments.)
 Subject Author Date answer K Sengupta 2008-02-21 14:26:20 No Subject Robyn 2005-04-05 21:38:53 re: Solution Michael 2005-04-05 01:38:07 re: Solution-robyn Michael 2005-04-05 01:36:56 Solution artemis 2005-03-05 17:11:42 Solution Robyn 2005-02-28 06:04:39 re: Solution Hugo 2005-01-28 21:44:51 Solution Stephen S. 2005-01-28 20:35:24 No Subject adam 2005-01-13 22:28:54 re: Is it really this easy? nikki 2005-01-10 19:52:55 re: Is it really this easy? Canute 2005-01-10 15:27:20 Is it really this easy? Canute 2005-01-10 15:24:23 i might have it sarah 2004-12-22 05:24:28 re: A Solution anton 2004-12-17 17:19:16 re: think i may have it audrey 2004-12-17 09:42:34 think i may have it audrey 2004-12-17 09:24:04 PETA Penny 2004-12-13 09:04:38 Dear Nate: re(2): Biologic not math answer Larry 2004-12-13 03:16:04 re(3): Biologic not math answer Penny 2004-12-13 00:46:46 re(2): Biologic not math answer Dustin 2004-12-12 22:31:59 re: Biologic not math answer nate 2004-12-12 22:10:58 re(3): A stroke of genius owl 2004-12-10 22:07:25 re(2): A stroke of genius Larry 2004-12-10 22:06:24 re: A stroke of genius owl 2004-12-10 21:44:50 re: A stroke of genius Timothy Bard 2004-12-10 20:58:13 re: A stroke of genius Michael Cottle 2004-12-10 16:57:57 If temporary incapacitation is not death, then... Charlie 2004-12-10 16:49:54 A stroke of genius Penny 2004-12-10 16:46:15 Biologic not math answer Larry 2004-12-10 16:03:43 Proof of Minimum (I think) nikki 2004-12-10 15:51:46 re(3): A Solution... I think Timothy Bard 2004-12-10 15:40:50 re(3): A Solution... I think Eric 2004-12-10 15:36:49 re(2): A Solution... I think Erik O. 2004-12-10 15:28:26 re: A Solution... I think Hugo 2004-12-10 15:15:10 A Solution... I think Timothy Bard 2004-12-10 15:12:40 Solution Eric 2004-12-10 15:01:10 A Solution Dustin 2004-12-10 14:54:16
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