peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead
Puzzle Description Suppressed:Click below to view spoilers
#1: Aldege Cholette (aldege) on Jun 8, 2013
Very nice image Mary.:)#2: Jota (jota) on Jun 9, 2013
Nice turtle! I enjoyed solving it but have to wait for the experts to explain.#3: Mary Maxine (Shanarieva) on Jun 9, 2013 [SPOILER]
Comment Suppressed:Click below to view spoilers#4: Joe (infrapinklizzard) on Jun 12, 2013 [HINT]
The whole [spoiler] solves with color logic, leaving only two sections in the top 4 rows.#5: Web Paint-By-Number Robot (webpbn) on Jun 12, 2013
The left section can be solved with smile logic on the 2 and 1|1 in c1&2 (vs the four 1s in r1-4).
Then we can see the smile logic in the second section with the 2 and 1|1 in c8 & c10. These cross with 2|1|1|2 in r1-4. However, one pixel of each 2 has already been placed making an effective 1|1|1|1, and thus a perfect smile.
Found to be solvable with moderate lookahead by infrapinklizzard.
Show: Spoilers
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