peek at solution solve puzzle
quality: difficulty:
solvability: moderate lookahead
Puzzle Description:
Never iron a four-leaf clover. You don’t want to press your luck.
#1: Jota (jota) on Nov 11, 2019
Funny!#2: Web Paint-By-Number Robot (webpbn) on Apr 12, 2023
Found to be solvable with moderate lookahead by wombatilim.#3: Wombat (wombatilim) on Apr 12, 2023 [HINT]
Initial LL only gets 4% done.
R30: EL marks C1-20 and C24-25 white. LL.
C1: EL marks R25-29 white.
R1: EL marks C20-30 white.
R2: EL marks C1-8 and C26-30 white. LL.
R2: EL now marks C20 white. LL.
C1: EL marks R17-R23 green.
LL to finish.
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