| Today's puzzle (Saturday, 2nd September 2006) |
Jankonyex
Kwon-Tom Obsessive
Puzzles: 5680
Best Total: 9m 35s | Posted - 2006.09.02 01:00:08
In a square-23-32 pattern:
in general, 2s cannot at corner situations, so there should have 1 line go to ?,
also it's sym. , so:
It's useful in counting, this is an example:
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Jankonyex
Kwon-Tom Obsessive
Puzzles: 5680
Best Total: 9m 35s | Posted - 2006.09.02 01:39:09
also other little patterns:
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foilman
Kwon-Tom Admin
Puzzles: 3613
Best Total: 24m 6s | Posted - 2006.09.02 10:19:20
Nice patterns! I hadn't thought the first one through before, but now that you've posted it it's fairly obvious. I think I'll try today's puzzle again and see if I can improve on my time now...  |
Naivoj
Kwon-Tom Addict
Puzzles: 314
Best Total: 33m 50s | Posted - 2006.09.02 23:22:22
In the second part of your example I do not understand how you are deducting the 4 horizontal lines at the very top. Why they can not also be 4x? I suppose it has to do with the counting you were referring to, |
PuzzleLover
Kwon-Tom Obsessive
Puzzles: 1033
Best Total: 38m 17s | Posted - 2006.09.02 23:43:52
Quote: Originally Posted by naivoj In the second part of your example I do not understand how you are deducting the 4 horizontal lines at the very top. Why they can not also be 4x? I suppose it has to do with the counting you were referring to, |
The x below r4c6 seems pretty subtle to me, but I figured it out. If others are too stumped by it, yell.
I was also slow seeing why the top line must keep extending left instead of turning down at r1c4. I first thought the x below r4c6 was needed to force this, but I see now they can be deduced together.
Very nice patterns!
Last edited by PuzzleLover - 2006.09.02 23:48:18 |
Envelope
Kwon-Tom Addict
Puzzles: 307
Best Total: 33m 49s | Posted - 2006.09.03 02:58:06
Another pattern that I haven't seen on the forum is this:
From that, you can derive 2 x's and a line.
It isn't specific to this puzzle, but it helps in general to look around the borders for these combinations. |
procrastinator
Kwon-Tom Obsessive
Puzzles: 1083
Best Total: 12m 56s | Posted - 2006.09.03 03:08:29
Quote: Originally Posted by envelope Another pattern that I haven't seen on the forum is... |
That was in drnull's big list of basic patterns in the Logical Thinking thread. Notice you don't need a border to make it work, just a single x. |
Envelope
Kwon-Tom Addict
Puzzles: 307
Best Total: 33m 49s | Posted - 2006.09.04 05:06:54
Ahh, That's probably why I overlooked it... |
