Passing Through (Posted on 2005-04-06)

	Submitted by Juggler
Rating: 3.2500 (4 votes)
Solution:	(Hide)
I believe the answer is '0' , start by using a gris 2 x 2, you cannot possibly get to the opposite corner by using all nodes. the same is true for a 4 x 4 grid and also a 6 x 6. This can be proven by coloring points alternatively black and white. On an even sided grid, any trip should start at one color and end at the other -- but since opposite corners have the same color, this isn't possible.

	Subject	Author	Date
	Puzzle Thoughts	K Sengupta	2023-08-09 06:46:24
	re: Conclusion	Juggler	2005-06-08 16:13:12
	Conclusion	Jonathan Chang	2005-04-23 14:50:26
	Solution	Jonathan Chang	2005-04-23 11:49:08
	Solution	Jonathan Chang	2005-04-23 11:44:28
	re: Solution	Hugo	2005-04-20 07:13:52
	Solution	Jonathan Chang	2005-04-20 02:27:17
	Solution	Jonathan Chang	2005-04-20 01:55:28
	Solution	Jonathan Chang	2005-04-20 01:08:26
	re: Solution	Hugo	2005-04-19 16:19:46
	Solution	Jonathan Chang	2005-04-19 15:04:18
	re: Solution	Hugo	2005-04-19 13:00:46
	Solution	Jonathan Chang	2005-04-19 10:30:37
	re: Solution	Hugo	2005-04-19 07:24:42
	Solution	Jonathan Chang	2005-04-19 01:03:05
	Solution	Jonathan Chang	2005-04-18 23:25:46
	re: Clarification - continue	Hugo	2005-04-18 13:36:27
	Clarification - continue	Jonathan Chang	2005-04-18 11:47:02
	Clarification from my point of view	Jonathan Chang	2005-04-18 11:03:13
	re: Solution	Hugo	2005-04-16 21:01:22
	Solution	Jonathan Chang	2005-04-16 10:58:48
	Feedback from the comments	Jonathan Chang	2005-04-16 00:32:58
	never mind	steve	2005-04-08 06:52:17
	possible solution	steve	2005-04-08 06:15:41
	No Subject	steve	2005-04-08 06:12:18
	up to 5x5	Jer	2005-04-07 18:09:42
	Solution	e.g.	2005-04-06 21:06:48
	Solution	Eric	2005-04-06 19:33:19