Forsmarts Puzzle Forum

The puzzles look ........ well, puzzling.

Had a look at Pentagramya. Do not undestand why some poentomios are outlined and some others are not. Any particular reason? There is no relationship between the outlined pentominos and those in the grid.

STefano

No, Vladimir, if you look at the 12 pentomins pictured at the bottom there is a group (NVXWZ) which look different from the others (at least on my computer/screen). Their outline is sharper.
From your answer my interpretation is that they just look different (maybe because they are shown diagonally) so it's only a graphic effect without any importance for the puzzle.

STefano

Vladimir
I have some more remarks to do

In the puzzle 3 in 1 I have found that the 2 black cells could be misleading. I started to solve the example and I thought they were (central) parts of ships. I realized afterwards they are not but I think you should make this clear in the instructions.

now a questions. Will there be a penalty for late or wrong submission?

Stefano again

Last edited by sf2l (2009-11-29 16:12:46)

Password protected file with the puzzles is available for downloading. Password will be revealed on the contest page when the competition starts.
The contest will last for 2 hours, then there will be the possibility for late submission for another 10 minutes. Every extra minute (full or not) will be penalized with 12 points.

Yes, there is a mistake in the instruction for Figure Sums. In the outlined areas numbers cannot be repeated but, of course, they don't have to appear in each area. It won't be corrected in the puzzle booklet, so please just keep it in mind.

The example for Hula-hoop uses only numbers 1 to 6, but the actual puzzle will use all the numbers 1 to 9.

Also, I'd like to add that puzzle booklet won't contain the examples, so please have your instruction booklet ready in case you need them.

Before the contest when i check the instructions i think that i can easily solve Untouchable Tetra, Pentagrayma, Digital Coverage; but during the contest i spent much more time for these puzzles; i could not solve any of them. I did 2D Magic(I like very much),Hula-hoop(wonderful), Sudoku 1-4, Roman Sudokus. But i did not submit my answers because i think it is not enough for good result. if only i sent the my answers:(

Thank you Vladimir for tough puzzles.

Best

Serkan

Another excellent contest, Vladimir. Thank you so much. Very, very puzzling puzzles.

forsmarts wrote:

I hope this contest gave someone a feeling of how some of the next WPC's puzzles may look like

I'm frightened

Stefano

Last edited by sf2l (2009-12-06 01:02:18)

Top results of the competition are as follows:

1. Hideaki Jo (Japan) 605
2. Thomas Snyder (USA) 500
3. Nikola Zivanovic (Serbia) 465
4. Przemyslaw Debiak (Poland) 453
5. Rick Uppelschoten (The Netherlands) 450
6. Jakub Hrazdira (Czech Republic) 410
7. Branko Ceranic (Serbia) 406
8. Vlad Klyachin (Russia) 355
9. Sebastian Matschke (Germany) 345
10. Alexey Kravchenko (Belarus) 330

Full table of results.

I don't think that I have a quite significant number of votes to determine the best/worst puzzle, but here is what I've got:

Best puzzles:
Hula-hoop 4.67
Triangular Sudoku 4.67

Worst puzzles:
Roman Sudoku 3.86
Untouchable Tetra 3.75

Everyone is welcome to comment on this contest and its puzzles.

All in all it was a nice competition, thank you.
The first puzzle I tried (2D Magic) was very hard for me, I spent lots auf time there and don't have a solution yet. Then I rushed through the Untouchable Tetras and asked myself why I didn't start with them. I also liked the Triangular Sudoku, the Roman Sudokus and the 3-in-1 very much. When I solved the Gears today, I was confused with the direction of the arrows, because the signs ">" and "<" have the smaller number at their tip.
And I liked the general difficulty level. Just for a contest it's very hard, but this way we can learn more about the puzzles.

Do you already have plans for the next contest?