peek at solution solve puzzle
quality: difficulty:
solvability: moderate lookahead
Puzzle Description Suppressed:Click below to view spoilers
#1: derby (Derby) on May 16, 2019 [HINT]
Can be solved with colour logic.#2: Brian Bellis (mootpoint) on Dec 14, 2019
I guess it was first come first served.#3: Wombat (wombatilim) on Mar 11, 2023 [HINT]
Initial line & color logic solves 71% with red and black remaining.#4: Web Paint-By-Number Robot (webpbn) on Mar 11, 2023
R12: Whether the remaining black 1 is in C26 or C26, R13C26 is black. L&CL.
R23: If the black 3 goes into C26, it creates a contradiction in R24. R23C29 is black instead. Line & color logic finishes the black.
C3: If the 19 reaches R24, it creates a contradiction in C4. Therefore R24-27 C3 are white.
LL to finish.
Found to have a unique solution by wombatilim.#5: Web Paint-By-Number Robot (webpbn) on Mar 11, 2023
Found to be solvable with moderate lookahead by wombatilim.
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