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Administrator
   
Country : India | |
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mihiryadav
Posts: 27
Country : India | |
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ghirsch
Posts: 102
Country : United States | ghirsch posted @ 2015-12-10 12:10 AM What can the first building be in rows 1 and 3? That gives you info about row 5 which should help you progress. |
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mihiryadav
Posts: 27
Country : India | Thanks....through with it but still stuck in 9x9 |
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mihiryadav
Posts: 27
Country : India | |
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kishy72
Posts: 419
Country : India | kishy72 posted @ 2015-12-10 3:58 AM Here's a start that you can focus upon.Digits 7,8 and 9 will be in R1C9/R3C9 and R4C9 in some order.These are the only places these digits can be in the last column.After this ,6 can only be in R6C9 in Column 9 considering the bottom 7 clue.
Edited by kishy72 2015-12-10 4:11 AM
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prasanna16391
Posts: 1801
Country : India | An easier way to look at it - R2,R5 and R9C9 form a 123 triplet, so anything in the other cells of C9 will block R2 and R5C9. Since only two places can be blocked for a 7 clue, these are your two places, and that means the remaining digits have to immediately be in order 4-5-6-7-8-9 in the other cells. |
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RameshLMI
Posts: 51
Country : India | Can someone suggest practice puzzles for X Sum Sudokus |
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rajeshk
Posts: 542
Country : India | rajeshk posted @ 2015-12-11 8:22 AM |
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Richard
Posts: 191
Country : The Netherlands | Richard posted @ 2015-12-11 10:36 AM RameshLMI - 2015-12-10 10:39 PM
Can someone suggest practice puzzles for X Sum Sudokus
I have created one for my Sudoku Variants Series. You can find it here.
And there was a puzzle of this kind in the LMI-test Road to London from last year.
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vopani
Posts: 739
Country : India | vopani posted @ 2015-12-11 12:27 PM |
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himan##007
Posts: 4
Country : India | sorry
Edited by himan##007 2015-12-11 11:36 PM
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rakesh_rai
Posts: 774
Country : India | | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Too many medium difficult puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
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ghirsch
Posts: 102
Country : United States | ghirsch posted @ 2015-12-12 3:41 AM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
There were some fun variations here that I hadn't seen before. I especially liked the 2-3 and 2-3-4 sudokus and the X-sums. |
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kishy72
Posts: 419
Country : India | kishy72 posted @ 2015-12-12 4:53 AM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Too many hard puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Many puzzles were worth too much or too little | |
I felt that this test had harder classics and were under-valued compared to the Variants.This probably got accentuated by the fact that I just didn't solve the classics in the way they were meant to be solved. I was doing the variants really well and suddenly I thought that I had completed all of the variants when actually I had completed only 4 of the 5 variant types . As a result,crossed over to the classics wherein I suffered a lot even at the 'hands' of a 2 pointer.In hindsight,I should have solved the 2-3-4 rather than persisting with the classics a lot.Got to submit a few classics in the dying moments and salvage some points.This test comes in the category of the hard sets like Evergreen (PR ) and Maths (SM ) My favourites of the test are X-sums followed by skyscrapers.Really clean solve paths.Variants were really lovely and I enjoyed solving them a lot.Thanks for authoring the set Rishi. |
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An LMI player
| An LMI player posted @ 2015-12-12 12:40 PM | How well did the variants represent the theme of the test ? | representation could have been better | | | What was your opinion of the distribution of easy/hard puzzles? | Too many hard puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
nice outside variants, some new to me. A standard outside (1-2-3 outside for 9x9 ) would also have been highly desirable. |
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vopani
Posts: 739
Country : India | vopani posted @ 2015-12-12 12:46 PM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
Had a few stumbles, but enjoyed the set. Loved the 2-3-4 Outside 9x9 |
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Fred76
Posts: 337
Country : Switzerland | Fred76 posted @ 2015-12-12 4:23 PM Nice test !
Thanks Rishi ! |
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MrLiang
Posts: 44
Country : Thailand | MrLiang posted @ 2015-12-12 9:07 PM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Too many medium difficult puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
I think some classic puzzles in this test are harder than others test. Otherwise, enjoy the outside clues variants, thanks. |
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Swagatam
Posts: 45
Country : India | | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Fairly Nice | |
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justinlam3
Posts: 8
Country : Hong Kong | | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
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detuned
Posts: 152
Country : United Kingdom | detuned posted @ 2015-12-13 12:38 AM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
A good solid test - I couldn't quite get the last puzzle out in time sadly. |
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An LMI player
| An LMI player posted @ 2015-12-13 6:57 PM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Many puzzles were worth too much or too little | |
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An LMI player
| An LMI player posted @ 2015-12-13 10:12 PM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Too many hard puzzles | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
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kishy72
Posts: 419
Country : India | kishy72 posted @ 2015-12-14 12:50 AM Strange.We have no contender finishing in the 90-100 range (so far).The Forbidden gap eh?!
100.6 and then a straight 12 points down directly to 88.6.Now, what are the odds of that happening ?! |
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An LMI player
| An LMI player posted @ 2015-12-14 1:00 AM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Many puzzles were worth too much or too little | |
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wgryciuk
Posts: 24
Country : Poland | | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Too many hard puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
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An LMI player
| An LMI player posted @ 2015-12-14 5:32 AM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
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Rubben
Posts: 20
Country : Romania | Rubben posted @ 2015-12-14 8:25 PM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
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puneet87
Posts: 33
Country : India | | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
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Administrator
Country : India | |
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Administrator
Country : India | Password removed and solutions (to variants) appended. |
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rvarun
Posts: 268
Country : India | rvarun posted @ 2015-12-15 4:14 PM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Too many medium difficult puzzles | | | What did you think about the puzzle quality of the test? | Very nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth the right amount | |
I feel the Classic Sudokus are tougher than the variants, which unfortunately I spent a long time. Overall nicely constructed sudokus and a great challenge for all. |
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An LMI player
| An LMI player posted @ 2015-12-15 6:29 PM | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Average | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Most puzzles were worth too much or too little | |
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carburra
Posts: 10
Country : India | | How well did the variants represent the theme of the test ? | variations represented the theme well | | | What was your opinion of the distribution of easy/hard puzzles? | Just right | | | What did you think about the puzzle quality of the test? | Fairly Nice | | | Of the puzzles you solved/attempted, how well did the point values reflect the difficulty? | Many puzzles were worth too much or too little | |
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himan##007
Posts: 4
Country : India | Can somebody pl explain as to how to start with next to 6 and next to 9 Sudoku |
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prasanna16391
Posts: 1801
Country : India | One thing to remember is that since all the digits outside are given, the rows/columns with only one outside clue must have the 6/9 in the first or last cell. This is usually the best place to start. |
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purifire
Posts: 460
Country : India | Sorry for the delayed post.
Congrats to Rohan, Rakesh and Kishore for being the top 3 Indians and to Gotroch, Kota and and Kwaka for the top international players. It was really awesome to see such a close finish between the first two spots. Prasanna is excluded from the official ranking as he has a bye.
I really enjoyed creating this set.
There is some feedback that sudokus were hard. Many of you voted for 'too many hard puzzles'. While it is understandable but I need to add here that Tiit, who test solved it, completed the set in 43 minutes. Based on that it was decided that we would not make it any more easier.
Most of you voted for 'very nice puzzle quality' -- Appreciate the feedback.
The first and the last points of the feedback were unanimous mostly, so thank you for that.
Finally, I'm glad most of you enjoyed the puzzles. Nice to see 317 participants with 105 Indians.
Rishi |
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himan##007
Posts: 4
Country : India | Sorry for the late reply. Thanks Prasanna for your valuable input. Just wanted to clear whether every Next to 6/9 Sudoku will have only one outside clue. |
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ghirsch
Posts: 102
Country : United States | ghirsch posted @ 2015-12-22 10:12 AM I like how the feedback for the Puzzle Ramayan rounds include a question about which puzzle types players enjoyed most. Could a similar question be added for the Mahabharat rounds? I think it's fun to see what people's favorite variants are. |
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debmohanty
Country : India | ghirsch - 2015-12-22 10:12 AM
I like how the feedback for the Puzzle Ramayan rounds include a question about which puzzle types players enjoyed most. Could a similar question be added for the Mahabharat rounds? I think it's fun to see what people's favorite variants are. Sounds good. Will do that from the next one. |
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prasanna16391
Posts: 1801
Country : India | himan##007 - 2015-12-22 9:45 AM
Sorry for the late reply. Thanks Prasanna for your valuable input. Just wanted to clear whether every Next to 6/9 Sudoku will have only one outside clue.
I'm not sure what the last part means. Every Next to 6/9 Sudoku will have, outside each edge, a set of 7 double digit clues and 2 single digit clues, and the rows/columns with single digit clues will be the ones where 6/9 is in the 1st or last cell (this is easily explained - because everywhere else, 9 will have one cell before it and one cell after it ) |
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rakesh_rai
Posts: 774
Country : India | prasanna16391 - 2015-12-22 4:26 PM
himan##007 - 2015-12-22 9:45 AM
Sorry for the late reply. Thanks Prasanna for your valuable input. Just wanted to clear whether every Next to 6/9 Sudoku will have only one outside clue.
I'm not sure what the last part means. Every Next to 6/9 Sudoku will have, outside each edge, a set of 7 double digit clues and 2 single digit clues, and the rows/columns with single digit clues will be the ones where 6/9 is in the 1st or last cell (this is easily explained - because everywhere else, 9 will have one cell before it and one cell after it )
The above is only true if ALL clues are given. There can still be Next to 6/9 sudokus with not all clues given, or more than two single digit clues given. |
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himan##007
Posts: 4
Country : India | I just meant whether every Next to 6 /9 Sudoku will have single digit outside clues. Sorry for the miscommunication.
Also one more request : Can the instruction booklets for the rounds be published a bit earlier, coz for beginners like me it takes time to understand the variants. Thanks |
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rob
Posts: 170
Country : Germany | rob posted @ 2015-12-23 4:52 PM rakesh_rai - 2015-12-23 11:21 AM
prasanna16391 - 2015-12-22 4:26 PM
himan##007 - 2015-12-22 9:45 AM
Sorry for the late reply. Thanks Prasanna for your valuable input. Just wanted to clear whether every Next to 6/9 Sudoku will have only one outside clue.
I'm not sure what the last part means. Every Next to 6/9 Sudoku will have, outside each edge, a set of 7 double digit clues and 2 single digit clues, and the rows/columns with single digit clues will be the ones where 6/9 is in the 1st or last cell (this is easily explained - because everywhere else, 9 will have one cell before it and one cell after it )
The above is only true if ALL clues are given. There can still be Next to 6/9 sudokus with not all clues given, or more than two single digit clues given.
I would argue that it's implied that if there's a clue at all in a given row or column, it will list all neighbours of 9 within that row or column. Otherwise, the rules would better be phrased along the lines of: "Clues outside the grid indicate numbers that must placed before or after the 9 within that row or column."
I'm sure someone will explore these variants soon! |
Outside Variations - 12th-14th Dec - Sudoku Mahabharat & ISC Qualifier