I acquired some PDF puzzle books for Christmas and have been fixing them in a Google Sheets. The fundamental instruments of borders, background colours, and coming into numbers work for many genres (Nurikabe, Tapa, Statue Park, Slitherlink, Sudoku…), however the subsequent set of puzzles are Masyus. Here is Wikipedia’s instance:

I do not know signify this in Google Sheets. The circles I can do effective; I’ll copy over some Unicode characters. But how do I draw the loop? It’s not alongside the sting of cells as in Slitherlink, which is a loop style I do effective in Sheets. Note that the loop will even must enter cells with characters in them, which would not be a fear in, say, Yajilin.

The Sheets facet is fairly non-negotiable until it is utterly unattainable. I wish to have all my options neatly organized collectively on the spreadsheet, I wish to remedy when I haven’t got web, I am unable to do Excel since 1) I do know it poorly and a couple of) I’ll lose my Office in few years once I graduate, and fixing within the authentic PDF is not an choice since I detest fixing puzzles in picture editors. That principally leaves Sheets. I’d admire if solutions took utilizing Google Sheets with no consideration and avoided recommending different instruments.

How do I transcribe a Masyu right into a Google Sheets, ideally as merely as potential?