peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead
Puzzle Description:
(This puzzle was recovered from the 2016 database crash. Puzzle creators, please edit this puzzle and put the real description here!)
#1: Jota (jota) on Sep 29, 2018
As always ... Hilarious!#2: Web Paint-By-Number Robot (webpbn) on Apr 12, 2023
Missing you!
Found to have a unique solution by wombatilim.#3: Web Paint-By-Number Robot (webpbn) on Apr 12, 2023
Found to be solvable with moderate lookahead by wombatilim.#4: Wombat (wombatilim) on Apr 12, 2023 [HINT]
Initial LL gets to 28%.
R30: EL marks C5-C9 black. LL.
R4: EL marks C1 white. LL.
R24: If the 10 goes to C2, R25 C3-7 would be black, and R23C5 would be white. This makes R23C6 white as well, which makes C6 invalid. R24 C1-2 must be white. LL.
R30: If the 12 goes to C16, R26C17 would be white and R27C17 would be black. This makes C17 invalid, so R30C4 is black instead.
LL to finish.
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