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19 million puzzles solved
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Posted on: Sun Oct 06, 2019 11:00 am

Posts: 2712
Joined: Thu May 12, 2011 11:58 pm
19 million puzzles solved
For those of you who want to relive the moment...:

The newsletter with a 19 x 19 puzzle will be sent shortly

Posted on: Thu Oct 10, 2019 2:09 pm

Posts: 44
Joined: Sun Feb 03, 2013 3:25 am
Re: 19 million puzzles solved
Congrats esp. to manni.
I personally was rather surviving during this moment – I was drunk.

Me with several unidentified persons, of course solvers, were sitting in Eden and waiting for something. After a while, unknown creatures, maybe angels, maybe Patrick(s), brought us an issue of 19 (!) different boxes containing classic puzzle pieces. We emptied out the boxes. Out of each of them were fell a strange (“sci-fi”) grid and the pieces with one number. I understood the grids contain diverse results of the particular cage – as in our Calcudoku.org., and I have to do the puzzles. But: there were so many pieces with the same number, with only very slightly different shapes! Frustration. We found out that place is more like hell than Eden.

And I ask you, Patrick: When the website reaches 100 mil. solved puzzles, will we get a standard 100×100 puzzle or a box of 10 000 pieces to complete?!

Posted on: Thu Oct 10, 2019 3:26 pm

Posts: 2712
Joined: Thu May 12, 2011 11:58 pm
Re: 19 million puzzles solved
CBut: there were so many pieces with the same number, with only very slightly different shapes!

I'm now wondering if it's possible to make a puzzle where the cages are shown separately,
i.e. as puzzle pieces. With still a unique solution (!)

And I ask you, Patrick: When the website reaches 100 mil. solved puzzles, will we get a standard 100×100 puzzle or a box of 10 000 pieces to complete?!

Of course.

Posted on: Sun Oct 13, 2019 3:55 pm

Posts: 476
Joined: Wed Apr 16, 2014 9:20 pm
Re: 19 million puzzles solved
Congrats, Patrick

Thank you for all the puzzles you have given us over the years.

Posted on: Sun Oct 27, 2019 9:04 pm

Posts: 12
Joined: Mon Nov 24, 2014 2:30 am
Re: 19 million puzzles solved
This was a nice challenge. Finally finished it a couple of days ago after 2 failed attempts.
I wonder, what's the largest calcudoku that can be generated with today's modern computing power? And how long might it take to solve?

Posted on: Sun Oct 27, 2019 9:26 pm

Posts: 2712
Joined: Thu May 12, 2011 11:58 pm
Re: 19 million puzzles solved
jpersky wrote:
This was a nice challenge. Finally finished it a couple of days ago after 2 failed attempts.
I wonder, what's the largest calcudoku that can be generated with today's modern computing power? And how long might it take to solve?

Not sure, I know I can do a 20 x 20 (so we're good for next year ).

The hardest at the moment is to create _difficult_ large puzzles (and not relatively easy ones, like that 19 x 19).

Posted on: Mon Jan 27, 2020 4:46 pm

Posts: 2712
Joined: Thu May 12, 2011 11:58 pm
Re: 19 million puzzles solved
The newsletter puzzle from last year is now available at:

https://www.reddit.com/r/numberpuzzles/ ... r_19_x_19/

(please vote up if you're on reddit )

The puzzle code is: "19mil" (if you haven't solved it for the 19 points yet)

Posted on: Mon Jan 27, 2020 6:03 pm

Posts: 681
Location: Dublin, Ireland
Joined: Tue Mar 01, 2016 10:03 pm
Re: 19 million puzzles solved
pnm wrote:
jpersky wrote:
This was a nice challenge. Finally finished it a couple of days ago after 2 failed attempts.
I wonder, what's the largest calcudoku that can be generated with today's modern computing power? And how long might it take to solve?

Not sure, I know I can do a 20 x 20 (so we're good for next year ).

The hardest at the moment is to create _difficult_ large puzzles (and not relatively easy ones, like that 19 x 19).

I think size alone makes it enough of a challenge! I’m not sure how anyone would cope if you were also to increase the difficulty level!

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