Stupid chatbot canโ€™t even tell me if this #nonogram is solvable with logic alone, and canโ€™t even admit that without 10 prompts. Why are we trusting LLMs with important questions?

After much thinking, I was able to cross out 14 squares and fill in 2. Top that, robot!

Iโ€™m still skeptical that this puzzle can be solved without guessing.

I've been grinding away at this, mostly making progress by using proof by contradiction to rule out some squares as filled in.

I'm starting to think this might be solvable, but only with additional complicated logic. This puzzle represents a sharp increase in difficulty after 18 relatively easy puzzles.

Upper left corner is row 1 col 1.
If r12c13 is filled in:

Then (green) r12c9 through r12c12 must also be filled in, r11c10 through r11c13 must also be filled in, r9c9 and r9c10 must also be filled in.

Then (blue) r11c14 canโ€™t be filled in. Thus col 14, rows 12 through 15 canโ€™t be filled in.

Then (orange) r12c7 and r12c8 must be filled in. Thus r11c7 must be filled in, but this breaks the clue โ€œ4 1โ€ for row 11.

Conclusion: r12c13 is NOT filled in.

#NoNoGram #LogicPuzzle #ScottPuzzles

What does knowing r12c13 is NOT filled in do?

With that box crossed out, I found the rest of the puzzle is a very straightforward solve using single step deductions.

Scott: 1
Robot: 0