I'm thinking it is either a republication or reimplementation of this one called "Doing the sums" from the legacy Hanjie set: https://www.puzzlemix.com/comments.php?id=2783
I don't see your name on the list of solvers for that one, though, so I could be wrong.
Posted 30th May 2022 at 00:16
gareth Administrator Daily subscriber Has started but not yet finished this puzzle
This puzzle hasn't been published before, and the legacy puzzle from 2007, referred to above, was a picture of a device with a printout sticking out of the back - so not the same image at all.
There was, however, I see now a different image of a calculator (that wasn't 30x30) in 2021, so probably that's what you're thinking of.
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I'm thinking it is either a republication or reimplementation of this one called "Doing the sums" from the legacy Hanjie set:
https://www.puzzlemix.com/comments.php?id=2783
I don't see your name on the list of solvers for that one, though, so I could be wrong.
There was, however, I see now a different image of a calculator (that wasn't 30x30) in 2021, so probably that's what you're thinking of.
You can however view other players' statistics and comments in the tables above.