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Johan wrote:

Jfo wrote:

This is my spin-off for "puzzle sudoku".
The solution for a puzzle sudoku can be used for "reverse engineering".

Cool. We currently have an unreleased genre where you dissect a grid (not necessarily a square or even a rectangle) into polyominoes containing all different symbols exactly once (we use letters at the moment). Adding the possibility to give hints regarding the number of line segments in a row or column sounds like it could work.
Do you happen to have some of these ready?

Also consider allowing two or more target sets of symbols which need to be contained in a polyomino, as in some of Nikoli's harder puzzles of this type. For example, in this puzzle, you must have 8 polyominoes with a permutation of the letters in TACIT, and 8 with DATANODE.

Hi!

I would like suggest the magic snail genre, and its variation the easy as magic snail, where the numbers around the grid show the first number from that side.
And its other variation where the numbers show the second number.

Maybe you can solve that fit into the rules the sudoku snail variation too. (From the OAPC)

Best regards, Zolt��n

Here's a suggestion for a new puzzle type at Puzzle Picnic. How about adding Spotlight puzzles? These are available at the Otto Janko site. You have a grid of numbered arrows. The arrows represent lights, some of which are turned on (white) while others remain turned off. (black) When an arrow is white its number shows how many other white arrows it is pointing to. I've played quite a few of these. they are challenging but it's also very rewarding to successfully solve the puzzles! Let me know what you think. also, I'd love to see more Thermometers puzzles added here in the near future.

I really like the genre which is in the Dutch puzzle book "Breinbrekers" called "Japans vierkant" (literally translated to "Japanese square").

An example: http://img.geocaching.com/cache/60494061-a24e-420c-8743-9193e8ddaa10.jpg (image is a bit large to post here)

Rules:
On every row or column fill in only different digits from 1 to 9 (you don't have to use them all, and some squares remain empty).
The numbers next to and above the diagram are the sum of the digits in that row or column (in the right order), and different sums are separated by at least one empty square (and within one sum, there are no empty squares, of course).

So for example: In the example look at the first row.
From left to right, there first are 0 or more empty squares, then some digits which add up to 16, then 1 or more empty squares, then some digits which add up to 22, and finally 0 or more empty squares. And this all in such a way so that no digit appears more than once in the row.

I only know this genre for a 10 x 10 grid and with the digits 1 to 9, but if it comes to this site it would be cool if we could also use other sizes, and use the digits 1 to n (or even 0 to n, the digit 0 is not the same as an empty square)

I like those too. Actually there's been smaller and larger examples in Breinbrekers. The smaller ones still used 1-9 when they were published though.

fl0rrat wrote:

I only know this genre for a 10 x 10 grid and with the digits 1 to 9, but if it comes to this site it would be cool if we could also use other sizes, and use the digits 1 to n (or even 0 to n, the digit 0 is not the same as an empty square)

You can find some japanese sums puzzle here:
http://puzzlepicnic.com/community/posts/list/1265.page

Look at the next sets:
2011

Zoltan Horvath: puzzles with 1-5 digits
Rajesh Kumar: 1-6 digits
Tim peeters and Hns Eendebak: Japanese sums variation

2010
Laszlo Osvalt: 1-7 and 1-8
Serkan Yurekli: Japanese sums & battleships
Zoltan Jakabfi: -3 to 3 and 1-7
Roland & Ulrich Voigt: Japanese sums and products

Have fun

Squares is a beautful logic puzzle and quite popular too(many of you may recall it has digits given in some cells and asks to draw squares(strictly squares) of different sizes ,one digit in one square of that size,and rectangles cant overlap,thoug they may intersect).
And so is another puzzle that i know of ,though dont know who is the inventor.It asks for packing given polyominos into a grid with boundaries,one piece in every outlined region,with the constraint that the pieces cant touch ,even diagonally.

Sorry i missed some important rules for squares:
The given numbers are sums of sizes of all squares that the cell belongs to.And squares can overlap,but the sides of squares cannot.

shikaku is another nice puzzle,I think we all like it.It might find a place here too.

Here's a puzzle type which I found at the German Puzzlewiki site. The German name for this puzzle is "Diamantensuche," which roughly translates to "Diamonds" (not the Diamonds puzzle here, which are much like Minesweeper). An English name for this puzzle could be "Diamonds and Arrows." You have a square grid with some empty squares and some containing arrows pointing in any one of eight possible directions.
There are diamonds hidden in the grid and the object is to locate them. No 2 diamonds may be adjacent to each other, not even diagonally. Each arrow points to only one diamond though not all diamonds will have arrows pointing to them. Numbers above the columns and to the left of the rows show how many diamonds, if any, are in a particular row or column.

At the Links page here click on Logic-Masters, then Puzzlewiki, and then "Mystery List" and "diamantensuche/de"

By the way, I think the puzzle anurag.sahay is referring to is called "Piecework" in various puzzle books and is also known by the Japanese name "kedoku." Here are 2 puzzle books that include this type of puzzle:

The Mammoth Book of Kakuro, Wordoku, and Super Sudoku (the name "kedoku" is used here)

Japanese Number Puzzles (here this puzzle is called "Piecework").

I dont understand this.Anyways,i am sure the administrator knows which puzzles i referred to.

Another puzzle type I'd like to see here at Puzzle Picnic is Greater Than Sudoku, also known as Comparison Sudoku. In these puzzles the inequality symbols that are characteristic of futoshiki puzzles are used here. Most often these puzzles are blank grids with inequality symbols used between each square within the 9 by 9 "boxes" that are part of a sudoku grid. Inequality symbols can also overlap the lines between two boxes. These puzzles, especially the ones with blank grids, can be quite challenging! Please feel free to share your thoughts on greater than sudoku puzzles.

A puzzle I'd like to see here is Strimko. It's similar to some of the puzzles already here, like Sudoku and Staircases, but it provides a different challenge. You can see the rules and a simple example here: http://www.strimko.com/rules.htm

Bizkit wrote:

A puzzle I'd like to see here is Strimko. It's similar to some of the puzzles already here, like Sudoku and Staircases, but it provides a different challenge. You can see the rules and a simple example here: http://www.strimko.com/rules.htm

This genre seems to fit quite well in the collection we already have. Nice suggestion!

It's basically jigsaw sudoku, isn't it? Just with a different way to show the nonets. Or am I missing a rule?