## can you solve the 10 hardest logic puzzles ever created?

Anything to do with minesweeper...
EWQMinesweeper
Posts: 411
Joined: Sun Nov 30, 2008 11:50 pm

### can you solve the 10 hardest logic puzzles ever created?

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

http://gizmodo.com/can-you-solve-the-10 ... 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!“

Judith Sunrise
Posts: 31
Joined: Wed May 09, 2012 8:41 pm

### Re: can you solve the 10 hardest logic puzzles ever created?

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.

EWQMinesweeper
Posts: 411
Joined: Sun Nov 30, 2008 11:50 pm

### Re: can you solve the 10 hardest logic puzzles ever created?

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!“

qqwref
Posts: 121
Joined: Thu Sep 23, 2010 4:17 pm

### Re: can you solve the 10 hardest logic puzzles ever created?

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.

Dayan Marchezi
Posts: 5
Joined: Fri Jul 03, 2009 3:15 am

### Re: can you solve the 10 hardest logic puzzles ever created?

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.

pauv
Posts: 82
Joined: Wed Nov 20, 2013 6:06 am

### Re: can you solve the 10 hardest logic puzzles ever created?

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

MichaelD
Posts: 6
Joined: Fri Apr 05, 2013 7:41 pm

### Re: can you solve the 10 hardest logic puzzles ever created?

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