Web Paint-by-Number Forum
Comments on Puzzle #24180: Swan Lake 5. (by Ann)
By Thomas Genuine (Genuine)

peek at solution       solve puzzle
  quality:   difficulty:   solvability: deep lookahead  

Puzzle Description:

Finally they could close him and took away his magic wand. Animals of the forrest were happy, too. Happy end! :)

#1: Jota (jota) on Apr 5, 2014

Except for the last 2 birds on the top left corner and the green butterfly, it's color and line solvable!
#2: Heather M (AuntieH) on Apr 6, 2014
Cute series Ann.
#3: Susan Duncan (medic25733) on Apr 7, 2014
Good series Ann. I enjoyed it
#4: Joe (infrapinklizzard) on Apr 8, 2014 [HINT]
The butterfly solves with a smile.

The two birds make me frown a bit.


Hmm,

Picture logic makes it obvious that it's two v's, but It is difficult to find a non-deep lookahead with pure logic.

The best I can do is this:
a) Try to place the right 3 in r1 into the right clump of unknown. This can only go in c13-15 or c15-17. (C14-16 gives an immediate conflict in r2.) We will try c15-17 first.

b) This will leave a 2x2 rectangle in the right unknown clump. c13-14:r3-4 is the only unknown left in that clump now.

c) summing the clues in c13-14 gives us three more pixels to set.

d) the 3 in r3 cannot fit in that clump anymore, leaving only the 1 in r4.

= Since we need three pixels in c13-14 and can only set one, the original assumption must be wrong and the 3 in r1 cannot be in c15-17, making r1c17 white.


Then simple edge logic on the 3 in r1 will eliminate c16.

Which will then get us to a line logic finish.

So unless I'm missing something, this is deep lookahead.
#5: Web Paint-By-Number Robot (webpbn) on Apr 8, 2014
Found to be solvable with deep lookahead by infrapinklizzard.
#6: merkey (merkey88) on Apr 23, 2014 [HINT] [SPOILER]
The two birds on the left are solvable if you work through the rest of the puzzle first. Just from the blue blobs (are they clouds?) you can see C12 R1&2 have to be blank. After finishing the cage, you have unknowns in R1-4 for C4-11 and C13-17.

If you look at R1, you should have two groups of 3 black blocks left. If you assume that one is in the second group of unknown grey blocks (ie C13-17) you can work through and eventually find a contradiction in C6 or C7, can't recall. After that you can fill in R1 correctly.

Seems simple after that.

Goto next topic

You must register and log in to be able to participate in this discussion.