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Location: India | February Beginners' Sudoku ContestTypesHere are the types for the February Edition of LMI Beginners' Contest - http://logicmastersindia.com/BeginnersSudoku/types/?test=B201302
We are continuing with 2 variants from last time (Irregular and Sudoku XV )
We are introducing 1 new variant (Frame Sudoku )
We are revisiting Extra Region Sudoku
Dates15th - 21st February (including both dates )
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Posts: 1
Location: Romania | The 3rd Sudoku, XV has 2 good results, please check ! :)
326914578
497865123
158732649
814659237
735281496
962473851
689547312
243196785
571328964
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Location: India | Frantz71 - 2013-02-13 4:21 PM
The 3rd Sudoku, XV has 2 good results, please check ! :)
326914578
497865123
158732649
814659237
735281496
962473851
689547312
243196785
571328964
Completely clueless about which Sudoku XV you are referring to. Please provide a link. |
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Posts: 315
Location: The Netherlands | Administrator - 2013-02-13 4:35 PM
Frantz71 - 2013-02-13 4:21 PM
The 3rd Sudoku, XV has 2 good results, please check ! :)
326914578
497865123
158732649
814659237
735281496
962473851
689547312
243196785
571328964
Completely clueless about which Sudoku XV you are referring to. Please provide a link.
Pretty sure this is the XV Sudoku from the last WPF GP.
Frantz, all instances of X and V are given, so there can't be any digits adding to 10 or 5 anywhere in the grid except where the X's and V's are given. Because there are numerous places two adjacent digits add to 5 and 10 in your solution, where no X or V is given, you solution is not valid.
I hope this helps. |
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Location: India | February Beginners' Sudoku ContestVariants PointsExtra Region Sudoku - 8 points
Sudoku XV - 5 points
Irregular Sudoku - 5 points
Frame Sudoku - 12 points
All 4 variants are written by Prasanna Seshadri.
Classsic PointsClassic 1 - 4 points
Classic 2 - 7 points
Classic 3 - 11 points
Classic 4 - 8 points
All 4 classics are written by Deb Mohanty.
Submission linkIf you still haven't figured out, here is the submission link for Beginners Contest.
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SM 2020 (Math) Author
Posts: 417
Location: India | Nice Tough sudokus.Thankful that Grand prix Indian round got completed just before this.Could carry on the momentum comfortably .I could almost feel instinctively where the numbers would be hidden.Ah Hidden singles again all over the place!!!Lovely construction
Some very really narrow points in the sudokus.Thankfully i found them sooner without wasting much time.
Overall CLASSIC classics!!!!! |
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Posts: 25
Location: United States | The instructions on the "Frame Sudoku" for the on-screen solving (not the pdf) are wrong.
They're instructions for a Killer rather than a Frame.
It could definitely cause confusion for anyone who is expecting the instructions to remind them how Frame works.
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1784
Location: India | Frame Sudoku rules
Please note that the online interface contains the rules for Killer Sudoku instead of Frame Sudoku. This will be fixed shortly. You can still access the correct rules by either keeping this page open - http://logicmastersindia.com/BeginnersSudoku/types/?test=B201302 or just downloading and opening the pdf while solving.
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1784
Location: India | Update
The above problem is now fixed.
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WSPC Organizer
Posts: 542
Location: India | I liked this test very much esp. the Classic puzzles. Each classic puzzle was very well created to give the minimum required hints. Extra Region Sudoku was nothing but Windoku itself. I think we could have introduced this type in this test instead of saying it as Extra Region Sudoku. I also liked the Frame Sudoku. Rest Sudoku XV and Irregular were easy ones. Overall very enjoyable Test. Thanks to Deb, Prassanna and LMI for this great test.
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Location: India | rajeshk - 2013-02-17 10:27 PM
Extra Region Sudoku was nothing but Windoku itself. That is an interesting observation. Not sure if Prasanna designed it that way.
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Posts: 25
Location: United States | Puzzles were nice. Alas, I was hung up on the Frame Sudoku for quite a while due to my own silliness (when you need 2 pairs for a 7-sum, don't pick 2+6 and 3+5 :)) |
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Posts: 11
Location: Iran | Hi :)
I'm new to LMI
I prefer to solve online but I'm not familiar with your online interface, can you please tell me how can I delete a pencil mark?
I tried "Delete" and "Backspace" and none of them can delete a pencil mark :p |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1784
Location: India | Black Tiger - 2013-02-19 1:00 AM
Hi :)
I'm new to LMI
I prefer to solve online but I'm not familiar with your online interface, can you please tell me how can I delete a pencil mark?
I tried "Delete" and "Backspace" and none of them can delete a pencil mark :p
For removing a pencil mark, you can press Ctrl+digit or Ctrl+leftClick. Its given in the "How to Submit?" section of the submissions page. :) |
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Posts: 11
Location: Iran | prasanna16391 - 2013-02-19 12:33 AM
Black Tiger - 2013-02-19 1:00 AM
Hi :)
I'm new to LMI
I prefer to solve online but I'm not familiar with your online interface, can you please tell me how can I delete a pencil mark?
I tried "Delete" and "Backspace" and none of them can delete a pencil mark :p
For removing a pencil mark, you can press Ctrl+digit or Ctrl+leftClick. Its given in the "How to Submit?" section of the submissions page. : )
Thank you :)
found the point and solved the test online last night :D |
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Posts: 35
Location: United States | Disappointed in my performance in part one. Decided to give it a try after getting my 10-month old to bed, and he of course woke up 30 minutes into the thing. Having to shoo the neighbor's cat off a couple of times didn't help. Oh well. Guess I may eventually learn not to do these when I'm the responsible caretaker. :) |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1784
Location: India | Beginners' Contest February is over. DavidCollison, Bram28 and Tokeiya take the top spots among the Beginners. f4han, Timothy and Gotroch take the top 3 Seasoner spots with some incredible times as always. Congratulations to all the winners.
This Beginners' Contest had a high participation of 318, among which 135 are beginners.
This was the first Beginners' Contest where I contributed as an author, and as I still needed work on my Classic side, Deb kindly agreed to contribute that half and came through with some high quality classics. As for the variants, I feel Frame Sudoku can be an inherently difficult type, because a lot of it involves triplet-thinking, and so I tried to make the other variants on the easy side. This particular Frame sudoku has a tricky few steps around the 3rd box, but otherwise its pretty smooth. Its important to note the hidden sums too in Frames, and there were a few helpful ones here, like the hidden 24 in row 1 for example. Anyway, I hope everyone enjoyed both the classics and the variants.
Thank you all for participating! |
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Posts: 5
Location: United Kingdom | prasanna16391 - 2013-02-23 1:40 AM
... Anyway, I hope everyone enjoyed both the classics and the variants. Thank you all for participating!
Thank you to you, Deb and the other organisers for a very enjoyable contest. Finding a Windoku as the Extra Regions puzzle was a pleasant surprise. I found the Frame puzzle heavy going for a while, but it really taught me the value of triplet-thinking as you mention : in general when dealing with variants, it's normally helpful to also remember to apply the basics such as rows, columns and blocks summing to 45 (including the middle block in this case).
David |
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Location: India | March Beginners' Sudoku ContestTypesHere are the types for the March Edition of LMI Beginners' Contest - http://logicmastersindia.com/BeginnersSudoku/types/?test=B201303
We are continuing with 2 variants from last time (Frame Sudoku and Extra Region Sudoku )
We are introducing 1 new variant (Renban Sudoku )
We are revisiting Odd Sudoku
Dates28th March - 3rd April (including both dates )
Authors :
Variants by Branko Ceranic
Classics by Branko Ceranic and Deb Mohanty
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Location: India | March Beginners' Sudoku ContestExtra Region Sudoku - 7 points
Renban Sudoku - 10 points
Odd Sudoku - 4 points
Frame Sudoku - 9 points
Classic 1 - 4 points
Classic 2 - 5 points
Classic 3 - 8 points
Classic 4 - 13 points
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Posts: 42
Location: United States | If I read the Renban rules correctly, a line which is a closed loop in a 3x3 block is impossible (since consecutive digits in a block must be a chain, which cannot possibly close as a loop). What am I missing? |
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Location: India | Please note that order of digits inside the line does not matter. |
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Location: India | Passwords removed from booklets. |
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Sudoku Grand Prix - Serbian Round Author
Posts: 42
Location: Serbia | About one month ago, Deb came to me with idea to prepare Variants for March test.
I usually don't make sudokus (and puzzles), but in last few months I created some sudokus and puzzles and decided to confirm to Deb.
I have some troubles and errors during test preparation, but at the end I'm glad that I succeeded to finish sudokus for test.
Deb, thank you!
One of the Variants (Renban) left from sudokus I created for Serbian round of WPF Grand Prix (Nikola, Cedomir and Zoran made rest), so I use a chance to invite all of you to play also in about two weeks from now.
Branko |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1784
Location: India | Beginners' Contest March is over.
Congrats to nyoroppyi (Japan), dp_94 (India) and affpuzz (USA) for achieving the top positions.
Among the seasoners, janoslaw (Poland), Timothy (France) and Gotroch (Czech Republic) lead the standings.
Thanks to Branko Ceranic for authoring an enjoyable set of Sudokus.
On a personal note, the Frame and then the Renban were my favorites. I'm quite surprised at a top 10 finish, I didn't think it went all that well while solving. Looking forward to the Serbian GP now :) |
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