Jigsaw Sudoku Puzzle
Peter Jeuken from The Netherlands
|
Jigsaw Sudoku Puzzle |
|
|
|
|
|
|
| Name | Country | Hint |
| Aad van de Wetering | The Netherlands | - |
| Odette De Meulemeester | Belgium | x |
| Peter Jeuken (The creator) | The Netherlands | - |
| Hagar Hagarson | The Netherlands | x |
| Sander Waalboer | The Netherlands | - |
| Lisan Sanders | The Netherlands | - |
| Martin Friedeman | The Netherlands | - |
| George Sicherman | United States | - |
| Helmut Postl | Austria | - |
| Aad Thoen | The Netherlands | x |
| Joseph De Vincentis | Salem - USA | - |
| Jan Kok | The Netherlands | - |
| Nico Looije | The Netherlands | - |
Helmut Postl:"This is an excellent puzzle. First the
idea of combining a polyomino puzzle with sudoku, and next the fine
coincidence that the pentominoes and tetrominoes together have 80 cells,
just one less than a sudoku board. Like George, I cut out the pieces from
cardboard. To better recognize the numbers used and those still missing in a
row, column or box, I wrote the odd numbers in green and the even ones in
red. That helped a lot (especially in distinguishing the 6 and 9 when the
pieces lay upside down or on the side). I solved the puzzle without using
any of your given hints."
George Sicherman: "I like this! And I already know what number to
write into the gray cell. That is the easy part.
I seldom work with physical pieces, but I am going to cut this one out. I
have friends who (like me) make crossword sudoku puzzles. I think they will
like this too."
"The solution to Peter Jeuken's puzzle is unique. Of course I used a
computer to prove it!"
Helmut Postl :"I thought about moving the hole from the corner
to the center. So I tried to construct such a puzzle. And I succeeded - with
the help of the computer, of course :-).
Have fun! And please put it on your site so that the others will have fun,
too."
Place the pieces so that each row, column and 3x3 block contains the
digits 1 through 9.
You must fill in the gray cell by hand.
The remaining 80 cells are to be occupied by the 17 polyominoes.
The digits need not be upright, and you do not need to flip over any pieces.
Here
is a PDF of the puzzle.
In the PDF are the odd numbers in green and the even ones in red
Do you want a hint?
|
|
|
|
Good
solvers obtain eternal fame
Mail to:
o.d.m@fulladsl.be
| Name | Country | Hint |
| Helmut Postl (The creator) | Austria | - |
| Aad van de Wetering | The Netherlands | - |
| Odette De Meulemeester | Belgium | x |
| Peter Jeuken | The Netherlands | - |
| George Sicherman | New Jersey - USA | - |
| Lisan Sanders | The Netherlands | - |
| Martin Friedeman | The Netherlands | - |
| Nico Looije | The Netherlands | - |
George Sicherman: "Postl's puzzle may be harder than Jeuken's for a human
being, but it is no harder for a computer!"
Martin Friedeman:"Welk een ijzersterk vraagstuk van Helmut!"
Peter
Jeuken made
on our request a second
puzzle: a 8x8
Pento-sudoku
with a 2x2
hole in the center.
Place the pieces so that each row, each
column and the diagonals contains the
digits 1 through 8.
You must fill in the gray cells by hand.
The remaining 60 cells are to be occupied by the pentominoes.
The digits need not be upright.
The pentominoes may
be rotated but not
flipped.
Diagonal neighbours (2 locations next to each other in a diagonal
direction) never contain the same number
George Sicherman: "It is the brain, the little
gray cells on which one must rely." - Hercule Poirot, famous Belgian
Here
is a PDF of the puzzle.
Will
you help?
Do you want a hint?
Good
solvers obtain eternal fame
Mail to:
o.d.m@fulladsl.be
| Name | Country | Hint |
| Peter Jeuken (The creator) | The Netherlands | - |
| Odette De Meulemeester | Belgium | - |
| Aad van de Wetering | The Netherlands | - |
| Aad Thoen | The Netherlands | x |
| Lisan Sanders | The Netherlands | - |
| Nico Looije | The Netherlands | - |
| George Sicherman | New Jersey - USA | - | Martin Friedeman | Utrecht - Nederland | - |
|
|
