peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead
Puzzle Description:
Sailing
#1: Gator (Gator) on Feb 18, 2010 [HINT]
The bottom 20 rows solve without a problem (with the exception of 1 cell). I cannot find a good way to tackle the top 10. I can visually see how it is supposed to be filled in, but I do not see a logical way to do it. I would call this one guessing.#2: Joseph Jessen (gijoex2) on Feb 18, 2010 [SPOILER]
I think you're right, but, if you can get one square (column 10 from the left, row 19 from the bottom) filled in, I think the rest fall into place.#3: Adam Nielson (monkeyboy) on Feb 18, 2010
Ditto #1.#4: Joe (infrapinklizzard) on Feb 18, 2010 [SPOILER]
Simple solving fills the bottom 20 rows until a block 2 rows x 3 columns is left to be solved: (the middle two are black, the outer four unsolved)#5: Gator (Gator) on Feb 19, 2010 [HINT]
_c__ 09 | 10 | 11
r11 ___ | _#_ | ___ (2)
r12 ___ | _#_ | ___ (2)
____ (1) | (x) | (2)
If the 1 in column 9 is in row 11, then the 2 in r12 must go in c11. However, it is then cut off by the blank in r11c11, thus r11c9 must be white. From there it solves nicely.
In your comments above, it should be columns 10, 11, and 12.#6: Joe (infrapinklizzard) on Feb 20, 2010 [HINT]
I had done what you have described above to conclude that R11C10 is a dot, which then lets you fill in R11C12, and then put more dots in column 12. But R12C10 and R12C12 have still not been resolved with the above logic. The 1 clue in column 10 can still go in rows 1, 3, 5, 7, and 12. The 2 clue in column 12 can still be finished with R10C12 or R12C12.
Oops, I was thinking like a programmer and started with column 0.#7: Gator (Gator) on Feb 20, 2010
That 1 can be located definitely.
My step-by-step of the non-line logic (with real pictures) (and the *correct* row and column numbers) is at: http://infrapinklizzard.deviantart.com/art/Logic-7854-154774911
Very good! Thanks for explaining the logic.#8: Web Paint-By-Number Robot (webpbn) on Feb 20, 2010
Found to be logically solvable by Gator.#9: Adam Nielson (monkeyboy) on Feb 20, 2010
Ditto #7. I LOVE how we can all see, step by step (with a visible clear image) of how things work in solving this logically. I wish we could all post links like this.#10: Joe (infrapinklizzard) on Feb 20, 2010
Thank you.#11: Adam Nielson (monkeyboy) on Feb 20, 2010
All it takes is Paintshop Pro and several hours of potential puzzle-making time. :(
Actually, it's fun in its own way. It makes you think clearly about your methods.
(Oh, and I have to add to Joe: we Joes have to stick together!)
I don't have "several hours of potential puzzle-making time,"#12: Teresa K (fasstar) on Feb 26, 2010
LOL
(snicker snicker)
Joe, thanks for the assistance. I met you at the "impasse" and you helped me get over that spot. Before I checked the comments, I had to guess, but your notes show the logical solve nicely.#13: BlackCat (BlackCat) on Aug 19, 2017 [HINT]
Oh, and nice puzzle, Joe (the other one). :-)
Rowing?#14: Eric (kelalatir) on Sep 22, 2021 [HINT]
I'm sure glad Joe's link to how to solve this puzzle is still live. The method is ingenious. And I needed it, I was stuck and stumped.
In case the link ever goes down, the secret is to test, one by one, and prove the following 4 squares cannot be black. Testing each of the 4 squares, edge logic in columns 12 through 8 causes a contradiction. The 4 specific squares to test are all in column 10:
R1C10
R3C10
R5C10
R7C10
What a great puzzle!
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