peek at solution solve puzzle
quality: difficulty: solvability: moderate lookahead
Puzzle Description Suppressed:Click below to view spoilers
#1: W. Brayton Batson (batsonb) on Aug 26, 2018
A stick#2: Jota (jota) on Jan 2, 2019
;-)#3: Lollipop (lollipop) on Dec 11, 2019
Good one. Or maybe a boomewrong...#4: Wombat (wombatilim) on Mar 25, 2023 [HINT]
Initial LL completes 90%.#5: Web Paint-By-Number Robot (webpbn) on Mar 25, 2023
C1: EL marks R17-20 white. LL.
R19: If the blacks in C12 and C18 are parts of the 4 and 3, it makes R20 invalid. Therefore those blacks are the 2 and the 1. LL.
R20: EL marks C70 white.
LL to finish.
Found to be solvable with moderate lookahead by wombatilim.
Show: Spoilers
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