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Timeline for Cross-arithmetic

Current License: CC BY-SA 4.0

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Jan 20 at 13:56 vote accept AlephSquirrel
Jan 20 at 10:47 history became hot network question
Jan 20 at 10:27 answer added ACB timeline score: 8
Jan 20 at 10:25 answer added M Oehm timeline score: 12
Jan 20 at 10:09 comment added Ivo @quarague you can deduce that concatenation of digits must be allowed because for example 5 vertical cannot start with an operator then 102 horizontal must start with the concatenation of at least 2 digits
Jan 20 at 9:27 comment added quarague Multiple white fields in a row may be all filled with digits to create a multi-digit number? Or do you have to always alternate digits and operations?
Jan 20 at 9:27 comment added ACB Penpa+ link for interested solvers.
Jan 20 at 3:31 history edited AlephSquirrel
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Jan 20 at 2:46 history asked AlephSquirrel CC BY-SA 4.0