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Level of calcudoku books
http://www.calcudoku.org/forum/viewtopic.php?f=2&t=13
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Author:  zefiros  [ Mon May 23, 2011 10:15 pm ]
Post subject:  Level of calcudoku books

In a month I'll be gone somewhere without internet for four weeks of backpacking. In order to satisfy my need of doing calcudoku's I would like to buy one of Patrick's books. Would those of you who bought one of Patrick's books mind sharing with me what is the approximate level the books (Advanced puzzles, Newdoku 1 and 2) in comparison to the puzzles on the website? So I might have an idea of which to buy. I already have the Dutch 'doeboek'.
Or perhaps Patrick himself could help me?

Thanks guys.

Author:  pnm  [ Mon May 23, 2011 10:37 pm ]
Post subject:  Re: Level of calcudoku books

zefiros wrote:
(Advanced puzzles, Newdoku 1 and 2) in comparison to the puzzles on the website? So I might have an idea of which to buy. I already have the Dutch 'doeboek'.
Or perhaps Patrick himself could help me?

The puzzles in the 'Advanced' book are at or above the level of the 'Doeboek' (the 'Advanced' book puzzles
have a star rating, I'd say that the Doeboek puzzles are 3-5 stars, the 'Advanced puzzles' are between 2 and 6).

The Newdoku 1 is simple, with only the puzzles at the end around the level of the medium/harder puzzles on the site.

Newdoku 2 more or less starts of where 1 left of, with the 40 advanced puzzles at the end at or above the
harder site puzzles.

That said, I'd be interested to know what other people think, I'm always looking for
more data to calibrate the formula I use to compute the difficulty level of a puzzle..

For completeness, the 'Rekendoku' pockets that were published last year (7 of them) are 100% easy
(too easy if you ask me, but the publisher wanted that).

Patrick

Author:  starling  [ Tue May 24, 2011 12:14 am ]
Post subject:  Re: Level of calcudoku books

pnm wrote:
zefiros wrote:
(Advanced puzzles, Newdoku 1 and 2) in comparison to the puzzles on the website? So I might have an idea of which to buy. I already have the Dutch 'doeboek'.
Or perhaps Patrick himself could help me?

The puzzles in the 'Advanced' book are at or above the level of the 'Doeboek' (the 'Advanced' book puzzles
have a star rating, I'd say that the Doeboek puzzles are 3-5 stars, the 'Advanced puzzles' are between 2 and 6).

The Newdoku 1 is simple, with only the puzzles at the end around the level of the medium/harder puzzles on the site.

Newdoku 2 more or less starts of where 1 left of, with the 40 advanced puzzles at the end at or above the
harder site puzzles.

That said, I'd be interested to know what other people think, I'm always looking for
more data to calibrate the formula I use to compute the difficulty level of a puzzle..

For completeness, the 'Rekendoku' pockets that were published last year (7 of them) are 100% easy
(too easy if you ask me, but the publisher wanted that).

Patrick

I don't know how you could write a program to determine this, but it would seem that each puzzle at any given point in time has a finite number of useful points. The fewer useful points the harder the puzzle. I don't have a specific puzzle to reference for illustration purposes, so if that doesn't make sense...

Author:  nobodyhasthisyet  [ Sun May 29, 2011 1:29 pm ]
Post subject:  Re: Level of calcudoku books

Patrick, do all your books allow you to score points for submitting solutions from them? I have your advanced book, and I will buy more books if I can score points with them.

Author:  pnm  [ Sun May 29, 2011 1:36 pm ]
Post subject:  Re: Level of calcudoku books

nobodyhasthisyet wrote:
Patrick, do all your books allow you to score points for submitting solutions from them? I have your advanced book, and I will buy more books if I can score points with them.

If only I had known :-)
No, only the 'advanced' book allows you to score points for the site.
Patrick

Author:  zefiros  [ Sun Jun 19, 2011 11:47 am ]
Post subject:  Re: Level of calcudoku books

Thanks Patrick, I have bought two of your Advanced books. One for myself and one for my folks. ;)

Author:  zefiros  [ Mon Jul 25, 2011 7:01 pm ]
Post subject:  Re: Level of calcudoku books

Thanks for your nice book, Patrick. ;) I wonder, however, if perhaps you could create a difficult twin puzzle some day? I really like the concept, but the twin puzzles in the Advanced book are nowhere near challenging.

Author:  pnm  [ Mon Jul 25, 2011 9:36 pm ]
Post subject:  Re: Level of calcudoku books

zefiros wrote:
Thanks for your nice book, Patrick. ;) I wonder, however, if perhaps you could create a difficult twin puzzle some day? I really like the concept, but the twin puzzles in the Advanced book are nowhere near challenging.

Thanks for reminding me. The twin puzzles go through a separate solver (it's
obviously different from the regular solver), which is not good enough yet.
I should work on it a bit more :)

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