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 stuck in this sudoku | |
| LMI Essentials -> Solving Techniques | 159 posts • Page 5 of 7 • 1 2 3 4 5 6 7 |
kishy72 |
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SM 2020 (Math) Author Posts: 419  Location: India | |||
| harmeet |
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SM 2020 (Converse and Odd Even) Author Posts: 87  Location: India | |||
| kishy72 |
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SM 2020 (Math) Author Posts: 419 Location: India | |||
| harmeet |
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SM 2020 (Converse and Odd Even) Author Posts: 87 Location: India | |||
| kishy72 |
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SM 2020 (Math) Author Posts: 419 Location: India | |||
| gaurav.kjain |
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SM 2020 (Irregular and Outside) Author Posts: 52 Location: India | someone please help me from this step, solving this I tried finding x, y wing but no success. sorry if numbers are messed up :)  Edited by gaurav.kjain 2015-07-05 7:12 PM | ||
| akash.doulani |
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SM 2020 (Math) Author Posts: 157 Location: India | |||
| gaurav.kjain |
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SM 2020 (Irregular and Outside) Author Posts: 52 Location: India | |||
| prasanna16391 |
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2021 World Sudoku+Puzzle Convention Organizer Posts: 1809   Location: India | |||
| vopani |
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WSPC Organizer Posts: 739 Location: India | |||
| prasanna16391 |
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2021 World Sudoku+Puzzle Convention Organizer Posts: 1809 Location: India | |||
| gaurav.kjain |
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SM 2020 (Irregular and Outside) Author Posts: 52 Location: India | |||
| kishy72 |
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SM 2020 (Math) Author Posts: 419 Location: India | A Consecutive Sudoku from the US Sudoku Team Qualification round by Wei-Hwa Huang.I greatly enjoyed this very delightful set ! All the sudokus had a unique solve path and were beautifully constructed.I was more or less sprinting through the test when I hit this one and spent around 27-28 mins on this single sudoku.I adopted a very mechanical approach and found that R2C6 was the start in my case.I eliminated digits one by one in R2C6 which was very tiresome.Surely, there must be an alternative easier solve than the one mentioned.If someone has a better start,please let me know.....  Kishore Edited by kishy72 2015-09-08 12:03 PM | ||
| prasanna16391 |
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2021 World Sudoku+Puzzle Convention Organizer Posts: 1809 Location: India | What I did was, 1. Mark odds/evens. In 2nd box, there are three distinct consecutive pairs, which would take one odd and one even each, meaning two odds and one even go in the series of 3. The series of 3 cannot have 7 and so cannot have 9 either and so must be 123 or 345. Either way, 3 is part of it, and there must be groups of 6-7 and 8-9 in that box elsewhere. 2. Then, note that R3C8 to R3C7 is a series of 6 and that R1C7 = R2C6. 3. Where can 8 be in the 3rd box? Can't be in R1C8 because that is odd (using C8). Can't be in R1C7 or R2C7 because both are 3rd/4th cells of a 6-cell series (considering R1C7=R2C6. 8 cannot be in R2C8 either because that causes a 5-6 pair in 2nd box which isn't allowed going by step 1. So, 8 is at an extreme of the 6-cell series. 4. The series has to be 8-7-6-5-4-3 or 3-4-5-6-7-8. Either way, R1C7, R2C7 will form a 5-6 pair, which means 7 cannot be in R2C9 or R3C9 because 6 is taken. So, 7 must be in R2C7 and the series of 6 is done. (Consecutive.png) Attachments ----------------  Consecutive.png (14KB - 6 downloads) | ||
| kishy72 |
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SM 2020 (Math) Author Posts: 419 Location: India | |||
| prasanna16391 |
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2021 World Sudoku+Puzzle Convention Organizer Posts: 1809 Location: India | |||
| kishy72 |
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SM 2020 (Math) Author Posts: 419 Location: India | |||
| abhi265645 |
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| swaroop2011 |
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PR 2020 (Shading and Loops) Author Posts: 668 Location: India | |||
| abhi265645 |
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| kishy72 |
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SM 2020 (Math) Author Posts: 419 Location: India | 'Flower' from Riad's contest.I have managed to complete the other 8 except this.Strangely,most of the puzzles to me seemed to be a contest in itself and took more than an hour and close to a 2.Can someone post the continuation here?  Edited by kishy72 2015-09-24 7:00 PM | ||
| gaurav.kjain |
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SM 2020 (Irregular and Outside) Author Posts: 52 Location: India | Some cells are divided into GROUP A and B and possible Group positions are marked. 'A' group 2 cells should be same as 'A' middle cell group and 'B' group cells in Box2 should become part of B group cells in marked positions. B connections are shown, so because of that B group cells as shown connected, with violet colour should be same  kishy72 - 2015-09-24 6:59 PM 'Flower' from Riad's contest.I have managed to complete the other 8 except this.Strangely,most of the puzzles to me seemed to be a contest in itself and took more than an hour and close to a 2.Can someone post the continuation here? | ||
| kishy72 |
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SM 2020 (Math) Author Posts: 419 Location: India | |||
| gaurav.kjain |
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SM 2020 (Irregular and Outside) Author Posts: 52 Location: India | Cross number sudoku, Either I didnot understand the rules or there is serious error in Cross Numbers marking, round represent cross number marking, you can check column 5 [1 1 1] is not satisfied. Someone please help.  imag | ||
| kishy72 |
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SM 2020 (Math) Author Posts: 419 Location: India | gaurav.kjain - 2015-09-25 11:39 AM Cross number sudoku, Either I didnot understand the rules or there is serious error in Cross Numbers marking, round represent cross number marking, you can check column 5 [1 1 1] is not satisfied. Someone please help. This is how the crossword goes.See where you have gone wrong.  | ||
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