peek at solution solve puzzle
quality: difficulty:
solvability: moderate lookahead
Puzzle Description Suppressed:Click below to view spoilers
#1: Wombat (wombatilim) on Mar 12, 2024 [HINT]
Initial line & color logic solves 88% with only red remaining.#2: Web Paint-By-Number Robot (webpbn) on Mar 12, 2024
C1: If R3 is red, R1 is invalid. LL.
The same step can be rotated around for each corner: R20C3, R10C20, and R1C18 each need to be white to avoid a contradiction.
LL to finish.
Found to be solvable with moderate lookahead by wombatilim.
Show: Spoilers
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