Comments on Puzzle #16652: Old Adage
By Tom King (sgusa)
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: Tom King (sgusa) on Dec 6, 2011 [SPOILER]
Comment Suppressed:Click below to view spoilers#2: Ellen Vollor (evollor) on Dec 6, 2011 [SPOILER]
Comment Suppressed:Click below to view spoilers#3: bugaboo (bugaboo) on Dec 6, 2011 [HINT]
great solve with no guessing#4: Tom King (sgusa) on Dec 6, 2011 [HINT]
there are a lot of things you can do, but the essential advanced logic steps are (after initial line logic):
1) doing edge logic on the 4 clue in r1 to get 2 dots in c19-20 and THEN doing edge logic on the 4 clue in c20 to get dots in r2-5 (followed by a little line logic to get some black pixels and also crucial dots in c19r2-3) THEN go back and do more edge logic on the 4 clue in r1 to get dots in c13-18 (looking 1-2 moves ahead each step)
2) do edge logic on the 8 clue in c1 to get a lot of dots (but only the dots in r1-2 are essential) and THEN do edge logic on the 4 clue in r1 to get dots in c2-8 (the 4 clue in r1 can now be completely placed) and this solves out with line logic
either step 1 or step 2 can be done first, but each step must be solved in the order i mentioned within each paragraph
no guessing
Thanks, Bugaboo. I worked the 4 in row 1 against the 3s in r2-4. Reading your solution, I did paragraph 2 first.#5: Marie-Louise Ambrey (marz71) on Dec 7, 2011
Omgosh Tom, this was a little toughy, but I did it, just, whew! Thanks for the fun solve :)#6: Kristen Vognild (Kristen) on Dec 7, 2011 [SPOILER]
Comment Suppressed:Click below to view spoilers#7: Nathan (SirMoose) on Dec 8, 2011
That was a fun one to solve. My kind of puzzle.#8: Jota (jota) on Dec 8, 2011
Me liked it and guessed (the adage).#9: Tom King (sgusa) on Dec 8, 2011
Thanks. Me aims to please ;-)#10: Web Paint-By-Number Robot (webpbn) on Jul 5, 2013
Found to be solvable with moderate lookahead by infrapinklizzard.#11: Jan Wolter (jan) on Oct 30, 2013 [HINT]
I don't really see how simple edge logic lets you eliminate the possibility that the four in row one is in columns 14-17. I needed to look pretty deep to eliminate that possibility.#12: Joe (infrapinklizzard) on Oct 31, 2013 [HINT]
If you place the 4 in r1 in c14-17, first-step edge-logic will put the right 3 in r2 in c16-18, but produce no conflicts. However, adding one more step will.
Now if we extend the 3 in c18 down into r3, its block is cut off by the dots from the 2s in c16-17 and r3 is invalid.
So, edge logic + one step.
Show: Spoilers
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