Comments on Puzzle #33781: Phare
By Michel Plourde (micplour)
peek at solution solve puzzle
quality: 
difficulty: 
solvability: moderate lookahead
peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead
Puzzle Description Suppressed:Click below to view spoilers
#1: Jota (jota) on Mar 28, 2020 [SPOILER]
Comment Suppressed:Click below to view spoilers#2: Vicki Woods (vickicwoods) on Mar 28, 2020
Empire State Bldg?#3: Norma Dee (norm0908) on Mar 28, 2020
I agree with Jota.#4: Ailsa Hebert (bazette3) on Mar 28, 2020
Enjoyed the solve. thanks!#5: Joe (infrapinklizzard) on Mar 28, 2020 [HINT]
This is not deep lookahead. There are two ways to use summing to solve this.#6: Web Paint-By-Number Robot (webpbn) on Mar 28, 2020
On the right: in the column clues, there are four pixels left to be placed. If you look at the crossing rows, r9 has two more to be placed, r10 has one more, and r13 has one more. Since all the leftover clues in those rows MUST be on the right, the areas in those rows on the left must be white. Then LL to finish.
On the left, the summing rules out the same block because all ten pixels left in c1-4 MUST be in r3-7.
Found to be solvable with moderate lookahead by infrapinklizzard.#7: Joe (infrapinklizzard) on Mar 28, 2020 [SPOILER]
Comment Suppressed:Click below to view spoilers#8: Norma Dee (norm0908) on Mar 28, 2020
Google translation says headlight. :)#9: Joe (infrapinklizzard) on Mar 28, 2020 [SPOILER]
Comment Suppressed:Click below to view spoilers#10: Aurelian Ginkgo (AurelianGinkgo) on Mar 29, 2020
My print copy of a French/English dictionary also confirms lighthouse, with some other options. I've noticed Google translate only ever gives one translation, but words can have several meanings. That is its greatest flaw, but it is good for the most likely or most common translation.#11: Aurelian Ginkgo (AurelianGinkgo) on Mar 29, 2020
Aussi, merci pour un autre bon puzzle. C'etait difficile a la fin.#12: Teresa K (fasstar) on Mar 30, 2020
Excellent puzzle, Michel!#13: derby (Derby) on Apr 7, 2020
Great puzzle. To solve it, you need some unusual techniques.#14: Eric (kelalatir) on Jun 29, 2021 [HINT]
Difficult solve, but fun! I'm not convinced it isn't deep lookahead. I had to use deep lookahead long before Joe's hint above, just to get to that point in the puzzle where summing works.#15: Emimonster (emimonster) on Jul 23, 2023 [HINT]
Yes long before you get to the final few that Joe is talking about there is definitely deep lookahead that is beyond the scope that somebody only capable of 3/5 difficulty could do.#16: Andrew Schultz (blurglecruncheon) on Jan 12, 2024 [HINT]
I worked on row 7 -- helper gets you to 60% and if you place the 5 in R8-12 then you get a pretty quick contradiction in R6C14. Same for R4-8 and R6C2.
Then Joe's summing argument works -- this doesn't feel as difficult to me as others because of all the 1's in R9-10 and C13-15. Of course it's still not trivial.
Show: Spoilers
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