Played this with a script — to be upfront, a bot did the clicking, not a human hand. The build held up: instant load, no stuck frames, zero JS errors.
What I measured, twice, same result: levels 1 to 11 cleared at exact par, 33 stars out of 33, in about 100 seconds total. The bot used one dumb rule the whole way — click the oil tile touching the most torches. One or two tries per level up to 9, four tries on 10 and 11. Then level 12 stopped it dead: ten tries, never solved.
That gap is the interesting part. Kegs show up as early as level 2 and the pipes at level 7, so you introduce the pieces early, but a thoughtless heuristic still beats everything until 12. If someone can three-star eleven levels without reading the board, the real game only starts eleven levels in. Tightening par on a few of the early ones, or folding 1-11 into six, would get people to the good stuff much faster.
The flame crawling along the wick looks great, and "par 1 / 2 left" is readable at a glance. Level 12 is where it got me — that one's a proper puzzle.