Asian Sudoku Championship 2025
Sudoku Champs 2024
Copy Paste — LMI July Sudoku Test — 7th - 9th July63 posts • Page 3 of 3 • 1 2 3
@ 2012-07-10 11:28 AM (#7776 - in reply to #7772) (#7776) Top

debmohanty




1000500100100100202020
Country : India

debmohanty posted @ 2012-07-10 11:28 AM

TiiT - 2012-07-10 10:49 AM

Awesome, thats my first one! :)
It is always interesting to see new winners. Congratulations!
@ 2012-07-10 5:47 PM (#7785 - in reply to #7769) (#7785) Top

Fred76




Posts: 337
10010010020
Country : Switzerland

Fred76 posted @ 2012-07-10 5:47 PM

Thanks for the wonderful test ! Every sudoku was very nice and fun to solve !

I was not very comfortable with consecutive and with renban. Equal was beautiful, hard but it can be solved smoothly, I really liked it !

When I saw the renban, I immediately recognized the configuration of the renban of DSM, which was much easier than this one. During solving, I had all the time this little voice in my head saying: "Why are you stuck? you know this grid, it's an easy one, you should crack it without problem !" creating a little discomfort and I really had the impression I was not good on this one (which was perhaps not the case).
After the long grid "equal", I just wanted to pass the sound barrier on the easy "low", but as often is that case, I did a stupid mistake at the end... not very important, but it cost me 2 ranks.

Fred
@ 2012-07-10 10:33 PM (#7786 - in reply to #7524) (#7786) Top

Para



Posts: 315
100100100
Country : The Netherlands

Para posted @ 2012-07-10 10:33 PM

I liked the puzzles. Equal was my favourite too. I messed up on the easier puzzles. got stuck on the all odd/even for far too long and made a mistake in the Low. I ended up not solving it as I switched to try to solve the Equal instead of solving the Low again. It seemed to have been the right decision as I managed to finish Equal it just in time.
@ 2012-07-10 10:39 PM (#7787 - in reply to #7775) (#7787) Top

Richard



Posts: 191
10020202020
Country : The Netherlands

Richard posted @ 2012-07-10 10:39 PM

TiiT - 2012-07-10 11:04 AM

In addition, I want to say thanks for the practising material - I solved all of them and It was really useful !!! :)

TiiT


Maybe it's good to write something about the practising material.
A lot of the regular participants in LMI sudoku tests are regular visitors of the puzzle portal of LM Germany and/or do also participate in the German Sudoku championship. So they might be more used to my 'style of puzzle making' (if I have one...) than others. To give all players the opportunity to practise some more of my puzzles, I think it's fair to provide the links to this practise material.
And meanwhile I hope to attract some players to the puzzle portal Germany too (of course). There's a lot of very nice puzzles out there, from various authors. (Not only sudokus BTW.)

It's good to read that it's helpful in at least one case!
@ 2012-07-11 12:51 PM (#7791 - in reply to #7524) (#7791) Top

macherlakumar




Posts: 123
10020
Country : India

macherlakumar posted @ 2012-07-11 12:51 PM

Nice set of puzzles.
I was able to solve only 4 during the competition, but could not submit the fourth because I ran out of time.
Now I am taking my time to solve other puzzles.
Renban was very good although I have started from the R1 and R3 Renban groups. As you said "What is very helpful for this puzzle is to notice what digits have to be in a renban group, and what digits cannot be in a group", I did the same thing and puzzle was solved very smoothly.

Still more to solve.

Thanks Richard and LMI for wonderful test.

Regards,
Ravi
@ 2012-07-12 1:49 AM (#7795 - in reply to #7524) (#7795) Top

gjdv



Posts: 1

Country : The Netherlands

gjdv posted @ 2012-07-12 1:49 AM

Let me first thank the author for providing the sudokus.
I'm quite new to these competitions, that might also be why I missed something, as I cannot see why there is a correct solution to one of the simpler sudokus: all odd/even
Let me explain, and hopefully one of you can prove me wrong :)

The grey fields either contain all even or all odd numbers. There are 5 odd numbers (1,3,5,7,9) and 4 even numbers (2,4,6,8) possible. Look at the rightmost column, there are 3 empty grey fields and even numbers 2 and 6 already present. That means that the 3 grey fields in this column cannot be filled with all even numbers (as there are only two left: 4 and 8). Hence, all grey fields should be odd-numbered.
Now look at the second row, there are only two non-grey empty fields, which are located in the top-middle 3x3 square. Number 4 is still missing in this row, hence it should be filled in somewhere in the middle 3, however there is already a 4 present in the top-middle 3x3 square. Hence, the grey fields cannot all be odd-numbered. A contradiction!


edit:
oops... I now see that the restriction on odd/even should be interpreted per 3x3 square... sorry

Edited by gjdv 2012-07-12 2:01 AM
Copy Paste — LMI July Sudoku Test — 7th - 9th July63 posts • Page 3 of 3 • 1 2 3
Jump to forum :
Search this forum
Printer friendly version