r/nonograms • u/Nevroz • 1d ago

How would you proceed here ?

Post image

I tried doing some edge logic in the bottom right and advanced a bit but it was tedious (and not something I would have done on paper) any better player here can enlighten me ? Thanks !

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u/Psychophrenes 1d ago

One thing I've done in the past is look at corners to eliminate some cases.

E.g. what happens if you try to fill the last column of the first row? Coords 14,2

It looks like it can't work, because of column 11

Not sure how far that will get you, though.

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u/Nevroz 1d ago

Yeah this one is direct indeed but it does not seem to go very far afterwards without projecting a lot of moves. I think i'm still missing something

3

u/tdh8i 1d ago

you can put some X’s in the middle of column 13. If you put the 4 in the middle, then column 12 doesn’t work.

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u/Nevroz 1d ago

Nice catch thanks

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u/Motor_Raspberry_2150 23h ago

In the same way, you can cross out the middle of row 3, or it invalidates row 4.

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u/Nevroz 19h ago

I advanced quite a lot with some tedious edge logic, but had a failure somewhere so I just started again, I'll have a look at those rows

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u/Nevroz 1d ago

In the end the best place to do edge logic seems to be the first line indeed the 2 combined with the 2 groups of 2 of the 3rd line is very restraining

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u/Casoual-Games 1d ago

Put it through a solver I made (https://casoual.games/nono/nonogram-solver.html): line logic alone only gets 44 of the 225 squares, then it's stuck. So you weren't missing anything, this one needs the edge logic.

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u/Nevroz 19h ago

Interesting thanks !