peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead?
Puzzle Description:
...The first nylon toothbrush, manufactured by DuPont under the name "Dr. West's Miracle Toothbrush," goes on sale. (Previously, toothbrush bristles were made from animal hair.)
#1: Norma Dee (norm0908) on Feb 24, 2014
Did the Fuller Brush Man sell them?#2: Heather M (AuntieH) on Feb 24, 2014
Good to know. Fun Puzzle!#3: valerie o..travis (bigblue) on Feb 24, 2014
:)#4: Tom O'Connell (sensei69) on Feb 25, 2014
was that back when we used tooth powder?#5: valerie o..travis (bigblue) on Feb 25, 2014
before my time :D#6: Kelly Groth (kellyhenk) on Feb 25, 2014
I remember this image. Great puzzle. Tough in the beginning...then a little logic needed to really get going!#7: valerie o..travis (bigblue) on Feb 25, 2014
thanks kelly :)#8: Aldege Cholette (aldege) on Feb 25, 2014
Tooth powder?,don't you mean baking soda Tom?:)#9: Tom O'Connell (sensei69) on Feb 26, 2014
arm & hammer was used, but they had tooth powder also which was almost the same#10: Susan Duncan (medic25733) on Feb 26, 2014
Can't imagine brushing my teeth with animal hair - thank goodness for Dr. West :)#11: valerie o..travis (bigblue) on Feb 26, 2014
exactly susan :)#12: Wombat (wombatilim) on Apr 11, 2014 [HINT]
Color/line logic solves all of the blue, most of the red, and very little black.#13: valerie o..travis (bigblue) on Apr 11, 2014
Smile logic to solve the remaining red.
Edge logic on the 6 in C1 OR the 6 in C14 will get you 5 of the blacks in your selected column. More line logic.
You're left with an unsolved section in R17-19 C6-9. Some alternating/smile logic finishes this up.
:)
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