July 2014

Xyzzy · 2014-07-16, 06:17

http://domino.research.ibm.com/Comm/.../July2014.html

Whew, where to start?

axn · 2014-07-16, 06:29

Quote:

Originally Posted by Xyzzy

http://domino.research.ibm.com/Comm/.../July2014.html

Whew, where to start?

Start by noticing that all the numbers are consecutive Fibonacci numbers

retina · 2014-07-16, 07:39

Perhaps I missed something in the description but it seems that the first player can easily win by simply taking all of the pebbles on the first move leaving none the the second player.

Edit: Oops, I certainly did miss something. The shape is supposed to be three dimensional.

Brian-E · 2014-07-16, 07:54

Quote:

Originally Posted by retina

Edit: Oops, I certainly did miss something.

Hardly surprising, the problem is not very well described. The notation for the example moves seems a little odd too: clearly the six numbers in a move are numbers of pebbles to be taken from each edge of the tetrahedron, but nowhere does the writer define in which order the edges are considered.

I suppose the problem is a variation of the game of Nim.

axn · 2014-07-16, 08:17

Quote:

Originally Posted by Brian-E

but nowhere does the writer define in which order the edges are considered.

The edges are ordered based on the initial values (1,2,3,5,8,13). The examples clarify that.

science_man_88 · 2014-07-16, 23:33

so they want all the possible lines to winning ?

Xyzzy · 2014-11-02, 19:05

http://domino.research.ibm.com/Comm/.../July2014.html

2014-07-16, 06:17	#1
Xyzzy "Mike" Aug 2002 2·3·13·103 Posts	July 2014 http://domino.research.ibm.com/Comm/.../July2014.html Whew, where to start?

2014-07-16, 07:39	#3
retina Undefined "The unspeakable one" Jun 2006 My evil lair 5×1,223 Posts	Perhaps I missed something in the description but it seems that the first player can easily win by simply taking all of the pebbles on the first move leaving none the the second player. Edit: Oops, I certainly did miss something. The shape is supposed to be three dimensional. Last fiddled with by retina on 2014-07-16 at 07:42

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