The puzzle can be played online on penpa-edit using this link.
Thank you so much to cdwg2000 and Moss for pointing out i'd messed up the thermometers and put them on backwards. Have fixed the grid and re-uploaded the intended puzzle.
Lösungscode: 4th row followed by 6th row, with no spaces.
am 11. Juni 2020, 17:26 Uhr von Greg
Edited Description
am 11. Juni 2020, 16:57 Uhr von Greg
Re-uploaded with correct thermometers. Thanks @cdwg2000 and @moss for pointing out my mistake.
am 11. Juni 2020, 13:12 Uhr von sf2l
so it's not just me....
am 11. Juni 2020, 12:21 Uhr von SirWoezel
@moss Finding out what was wrong with the puzzle is at least as impressive as the puzzle itself!
am 11. Juni 2020, 10:35 Uhr von moss
It does have a (unique) solution if you assume that the two thermos in the central square are reversed (having the bulbs on the right instead of the left).