can you solve the 10 hardest logic puzzles ever created?

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can you solve the 10 hardest logic puzzles ever created?

Postby EWQMinesweeper » Sat Aug 10, 2013 10:32 pm

today i found this link posted in a thread in the speedsolving forum:

http://gizmodo.com/can-you-solve-the-10-hardest-logic-puzzles-ever-created-1064112665?utm_campaign=socialflow_gizmodo_facebook&utm_source=gizmodo_facebook&utm_medium=socialflow

number 10 on the list is described as 'minesweeper-like'. it took me about 2 minutes to solve a beginner's puzzle but now i'm going to try the big puzzle.

update: 1h 45m into the the puzzle that is mentioned in the linked article and it's starting to get really difficult. probably no more than 10% of the squares are solved at this point.
„Das perlt jetzt aber richtig über, ma sagn. Mach ma' noch'n Bier! Wie heißt das? Biddä! Bidddää! Biddddäää! Reiner Weltladen!“
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Re: can you solve the 10 hardest logic puzzles ever created?

Postby Judith Sunrise » Mon Aug 12, 2013 12:30 am

About 1,5 hours and I am still finding some "straight-forward" solving areas. But it's kinda exhausting to do 5 min of searching to see one.
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Re: can you solve the 10 hardest logic puzzles ever created?

Postby EWQMinesweeper » Mon Aug 12, 2013 9:01 am

Judith Sunrise wrote:About 1,5 hours and I am still finding some "straight-forward" solving areas. But it's kinda exhausting to do 5 min of searching to see one.


this still happens to me after 5h 30m. 25-30% solved by now.
„Das perlt jetzt aber richtig über, ma sagn. Mach ma' noch'n Bier! Wie heißt das? Biddä! Bidddää! Biddddäää! Reiner Weltladen!“
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Re: can you solve the 10 hardest logic puzzles ever created?

Postby qqwref » Wed Aug 14, 2013 11:31 pm

The other day I spent most of the day on it (off and on) and got probably 90%, stuck on the lower left area. I used a bit of help from the "check squares" thing, but not for guess-and-check, just to make sure I didn't make mistakes (which I did several times). It's quite a tough puzzle.

I'm thinking it would be cool to set up some kind of program to generate puzzles like this. I'm not exactly sure how I would, but I know I can borrow much of the solver from the Tatham minesweeper puzzle.
NF player. Best scores 1-10-39.
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Re: can you solve the 10 hardest logic puzzles ever created?

Postby Dayan Marchezi » Fri Aug 16, 2013 5:39 am

qqwref wrote:I used a bit of help from the "check squares" thing, but not for guess-and-check, just to make sure I didn't make mistakes (which I did several times).


Same here. Once I had a whole area wrong. It's a very arduous puzzle indeed.
I'm done after 16h27m. :mrgreen:
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Re: can you solve the 10 hardest logic puzzles ever created?

Postby pauv » Sat Apr 18, 2015 12:58 pm

http://i59.tinypic.com/if1qav.jpg

Here is the hardest part. All the other part can be solved by reasoning, though a set of 5 in the middle is really hard. My method here is supposing a cell to be black - then contradiction. One of the contradiction is according to the 23 structure in the bottom of 4th column.
Things were obvious after this:
http://i57.tinypic.com/2myc40j.png

My time used is 06:23:40
http://i57.tinypic.com/2dw9qol.png
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Re: can you solve the 10 hardest logic puzzles ever created?

Postby MichaelD » Thu Sep 03, 2015 4:49 pm

Took me about 16 hours to finish this as well. Last bit frustrating as mentioned.
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