peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead
Puzzle Description:
Keep an ear to the ground
#1: CB Paul (cbpaul) on Sep 12, 2021 [SPOILER]
Wow, I was kinda close with "Corn off the cob." Corn on the ground...#2: Jota (jota) on Sep 13, 2021
You're having some fun with these! And so are we.
Fantastic!#3: Car Geis (cgeisler) on Sep 13, 2021
groan. Nice image, though :)#4: Kristen Vognild (kristen) on Sep 14, 2021 [HINT]
I *guess* this is deep lookahead...#5: Valerie Mates (valerie) on Sep 16, 2021 [HINT]
Hm. I could not find a place to grab onto this -- not an edge to use edge logic on, or a crescent for smile logic. I spent a while saving my progress, then marking a square as green, using the helper until it got a contradiction, then reverting to what I had saved, adding a dot where the square had been, and saving again. But even that didn't get it solved for me.#6: Valerie Mates (valerie) on Sep 16, 2021
But I peeked at the solution and it was cute!#7: Brian Bellis (mootpoint) on Sep 18, 2021
I had trouble solving my own creation. I think I did a guess and check to get into solving it.#8: Gator (gator) on Sep 18, 2021 [HINT]
I'm not sure if I will get to a solution or not with this, but here goes:#9: Andrew Schultz (blurglecruncheon) on Sep 20, 2021 [HINT]
Line/color logic will place all of the black and some of the green.
Either R17C11 or R17C13 is green. Looking at R16, we can then see that R16C8-10 have to be dots.
Looking at C7, with EL and looking 2 moves ahead, then R15C7 will have to be a dot. Again looking 2 moves ahead in C7, R14C7 will also have to be a dot. LL.
If a 2 clue is placed at R10C14-15, then this will make R9 invalid (as R14C11-12,14-15 would be force green). So R10C15 must be a dot. R10C14 is also a dot with LL.
That is all I can get for now. I'll look at it again later.
I'm worried I left a step out here. I tend to use brute force. My method seems to be deep lookahead.#10: Gator (gator) on Sep 20, 2021 [HINT]
As Gator mentions above, all the black dots are placed by line logic. Also note the bit about R16 C8-10 being dots.
R15 through C10 must be dots after the initial line logic. That places dots at R12 to the right of C12. If the 2-3-4 in C15 are above the line we get a contradiction in column 16 pretty quickly. R17C16 as green then gives a contradiction with deep lookahead.
C9R8 being green creates a contradiction with medium lookahead. Line logic from there.
I feel like the state of our puzzles look very different as the R8C9 does nothing for mine. I wish there was an easy way to post pictures here.#11: derby (Derby) on Sep 22, 2021 [HINT]
I enjoyed this puzzle. I could see that the patterns of numbers would lead to some strings, but wasn’t sure where to start. I eventually saw that the column of 19 pixels couldn’t be a single pixel wide and was able to move ahead from there. Thank you#12: Wombat (wombatilim) on Apr 9, 2023 [HINT]
After Gator's hints:#13: Web Paint-By-Number Robot (webpbn) on Apr 9, 2023
R12: If the 3 goes to C7, R13C9 is green. If the 3 goes to C10, R13C10 is green. Either way, R13C13 is white.
C15: If the 4 goes into R13, R13-15 C16 are white, and R14-15 C14 are green. This makes R14 invalid, so R17C15 is green instead. LL.
R15: Whether C14 or C16 is green, it places the 1 in R14, so R14C18 is white. Minimal LL.
R14: If the 4 goes to C14, both R13 C14 and C16 would need to be green, which is invalid. R14C10 is green instead. LL.
C7-8: One of these columns goes to R5 and the other goes to R7. Either way it places the green 1 in R7, and R7C7 is white.
LL to finish.
Found to be solvable with moderate lookahead by wombatilim.
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