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Comments on Puzzle #25687: Sky Scrapper
By Joe (infrapinklizzard)

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

Puzzle Description Suppressed:Click below to view spoilers

#1: Joe (infrapinklizzard) on Jan 5, 2019 [HINT]

After initial LL/CL,
Edge logic on the blue 6 in r1 makes c2-4, c11-15 white

LL/CL

Summing columns 4-6 gives three more greenn pixels needed. R11 needs one and r10 needs one. That leaves one (and only one) pixel to be placed in r7, so r7c5 is green and r7c4 is white.

LL/CL

Look at the red 3 in c11 in comparison with the red 1s in c10. This is a classic smile - the 3 cannot go all the way down without conflicting with c10, so c11r14 must be white.

LL/CL finishes all colors but green, mostly in lower right.

Edge logic on the 4 in r11 makes c13 white.

LL

Internal EL on the 3 in c14: if it were in r11-13, it would go right in r11, left in r12, and then conflict in either direction in r13. So it cannot go there and c14r11 must be white.

LL

look at c30 - there are four 1s left. note that in rows 13-19 all the clues are greater than 1. So if one of the 1s goes down there, there must be a corresponding pixel next to it in c29. But c29 has only two clues left. Therefore, two of the 1s in c30 must be in rows 5-8 and c30r5 must be green.

LL (note c28r14 must be white)

look at c29. The last 1 must be in either r28 or r29. Both rows have one 3. No matter which row it is in, the 3 in that row will extend into c28, where it must be part of the 2 in that column. So c28r28-29 is green.


LL to finish.
#2: Joe (infrapinklizzard) on Jan 5, 2019 [SPOILER]
Comment Suppressed:Click below to view spoilers
#3: Jota (jota) on Jan 9, 2019
Very hard solve! Loved it!
#4: derby (Derby) on Jan 15, 2019
Great puzzle, good use of colour and pattern logic.
#5: Velma Warren (Shiro) on Sep 26, 2019
Very tough.
#6: Web Paint-By-Number Robot (webpbn) on Aug 7, 2020
Found to be solvable with moderate lookahead by infrapinklizzard.
#7: BlackCat (BlackCat) on Sep 2, 2020 [HINT]
Very tough solve for me. Had to guess several times. Lovely use of color. It took a while to see the title image. At first I thought it was a colorful flying Dumbo.
#8: Vaggelis Kamaris (evag7651) on Dec 7, 2020
solved. Some reverts at end.
#9: Koreen (mom24plus) on Jan 22, 2021
I knew the spelling was intentional...this was not at all what I imagined. Well done, love it!
#10: Ailsa Hebert (bazette3) on Aug 13, 2022
Great puzzle! Enjoyed the solve,,,,thanks!!

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