Puzzle Description:

a tankard full of beer

#1: Jan Wolter (jan) on Apr 8, 2007

I haven't decided yet if there is more than one solution to this, but I can't seem to solve it by pure logical reasoning.

I'm convinced the solution is unique, but I had to do a lot of trial and error to establish that. I'm not sure that an especially ingenious person might not be able to win through without that, but it'll take some complex reasoning at many points.

I was able to solve this logically from start to finish, although not without difficulty. Took some work to get started on the bottom area (a lot of edging logic and eliminating blank squares), and to finish the upper right area. Excellent and challenging puzzle.

To Jan Wolter: I think "some complex reasoning" is the best thing when I'm solving nonograms, so I try to create such problems. Some hours spent with such nonograms - thats it!

P.S. I've spent 2 weeks on creating this puzzle.

Well, the image is very nice, and the difficulty seems to be pretty much where you want it to be. Well done.

Woo hoo! I did it by logic! But it required doing edge logic by looking at three rows or columns at a time. Very challenging!

I never did logically solve it, but with testimonials from two trusted solvers, I'm marking it logically solvable.

I had to do trial and error even after using edge logic. Neat puzzle though.

I'd like to say I solved this with logic alone but there were a couple spots where the logic may have been "iffy," particularly in the upper right corner. I solved it straight through (after one false start) and edge logic as well as what's been called "look ahead" logic played a big part.

If I really cared it would be worthwhile to go back and try the upper right corner with what might have been an alternate solution to see if it would've concluded.

I guess my real question is how far can "look ahead" logic go before it's really just trial and error?

The image is of average quality but I'm still glad I solved it because it was a real brain exercise.

gator since you read these comments feel free to post a walk through

I solved but I'm not convinced Gator would say it's solvable. I had to look ahead.

I just solved this one with a lot of advanced logic. I'm not sure if I'm willing to write a walk through for this though as that would take us a considerable amount of time for me to do.

This amazing puzzle is logically solvable, but it requires advanced techniques and foreseeing moves.

I couldn't write a detailed walkthrough without starting it from scratch, since most of thoughts I've used to solve it, specially on its lower left side, were in vain. Since I don't intend to do that, here go some tips about what I've done:

After few line logic you can do at the beginning, you can determinate some blank squares with edge logic on its four borders. After that, I had to use a combination of edge logic in rows 41-44 and columns 1-3, changing your perspective from horizontal to vertical at each blank square you can determinate. The combination of the first 6 in R41, the 8 in R42 and the 7 in R43 are very good to generete contradictions on rows 5-10. This allowed me to determinate first rows. The 17 on R13, combined with the 25 on R14 also helped me a lot.

This basically allows you to complete almost entirely the puzzle with the exception of the 15x15 square on top left corner. There, edge logic with the last 3 on R2, in conjunction with edge logic on the 2 in C44, allows you to mark blank squares that ultimately leads to positioning the 4 on C42 and the 3 in R8. Line logic solves the rest.

Thanks for the uploader. It's a great job. Very funny and hard puzzle to solve.

solvable by logic alone. nice puzzle

Had to guess several times. Fun image.

Delicious.

Tough puzzle...but nicely done!

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