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Posts: 25
Location: United States | In the Kakuro Sudoku example, there are a couple of issues.
First, the "19" in row 4 should pretty clearly be a "17".
Also, even assuming that fix, there are three different solutions, I think. The 3's and 5's in rows 5/7 could be swapped without affecting the sums, and there's a third solution where you swap the 2 and 3 in the last column and then adjust 2's, 3's and 5's accordingly.
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Location: India | Yes, the sum of 19 needs to be corrected in the example.
Regarding 3 and 5 being exchangable : This is not allowed since digits can't repeat in rows / columns / outlined regions. |
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Posts: 25
Location: United States | debmohanty - 2011-06-15 9:42 AM
Yes, the sum of 19 needs to be corrected in the example.
Regarding 3 and 5 being exchangable : This is not allowed since digits can't repeat in rows / columns / outlined regions.
Um... maybe I'm being dense here, but if you swap both pairs, how do they repeat?
3 5
5 3
vs
5 3
3 5
???
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Diagonal Vision Author
Posts: 337
Location: Switzerland | SKnight - 2011-06-16 2:51 AM
debmohanty - 2011-06-15 9:42 AM
Yes, the sum of 19 needs to be corrected in the example.
Regarding 3 and 5 being exchangable : This is not allowed since digits can't repeat in rows / columns / outlined regions.
Um... maybe I'm being dense here, but if you swap both pairs, how do they repeat?
3 5
5 3
vs
5 3
3 5
???
They repeat in the outlined (irregular) regions if you swap both pairs 
Fred |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | KAKURO SUDOKU
1) Apart from that printing mistake of 19 in row 4 which should have been 17 as mentioned earlier, i am getting multiple solution.
other than what given in the solution i am getting different solution. here by i am attaching a photo of it.
i am not able to find any mistake in it please check it out.
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Mean Minis (2020) Author
Posts: 774
Location: India | swaroop2011 - 2011-06-16 3:13 PM
KAKURO SUDOKU
1) Apart from that printing mistake of 19 in row 4 which should have been 17 as mentioned earlier, i am getting multiple solution.other than what given in the solution i am getting different solution. here by i am attaching a photo of it.
i am not able to find any mistake in it please check it out.
Look at the first two columns...lot of numbers are repeating. |
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SM 2020 (Converse and Odd Even) Author
Posts: 85
Location: India | Swaroop, you've two 4's and two 2's in the first column for e.g. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | i thought ki the row and column meant between two black cells,
ok now it is clear. |
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Location: India | Swaroop and others, please remember that this is not a standard Kakuro puzzle. Digits can NOT be repeated across rows / columns / outlined regions.
This puzzle is also known are 'Sudo-Kuro'
Here are one more example from mock6
Also, see Rohan's blog for 2 more puzzles from Sudoku Cup 1.
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | 1)SKYSCRAPERS SUDOKU
can anybody tell me the mistake in this image now, here too i am getting same problem of multiple solution.
2) can any body help out with how to start the BATTLESHIP SUDOKU, i am not getting any hint.
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Location: India | swaroop2011 - 2011-06-16 3:43 PM
1)SKYSCRAPERS SUDOKU
can anybody tell me the mistake in this image now, here too i am getting same problem of multiple solution.
You've ignored the hint 5 at bottom of column 6. |
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | ok got it again did very silly mistake. i think now i should improve upon this. thanks .
what about BATTLESHIP SUDOKU? |
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Location: India | swaroop2011 - 2011-06-16 3:50 PM
ok got it again did very silly mistake. i think now i should improve upon this. thanks .
what about BATTLESHIP SUDOKU?
In Battleship Sudoku, you have to remember that the given digits can't be part of ships (i.e. they are like Water cells in standard Battleships puzzle)
Considering that, it is easy to figure that the 1X3 ship can lie horizontally in row6. It can't lie vertically in Col1 or Col3 (then it is not possible to satisfy Col2).
So, you get 4 at R6C2.
From that it should be easy to determine that the 1X2 ships will be in R1C2C3 and R3R4C1. You should be able to solve it after that.
Apart from the link Rohan mentioned, you should be able get 9X9 Battleship Sudokus from motris' blog
See - http://motris.livejournal.com/79580.html, http://motris.livejournal.com/18608.html,... http://motris.livejournal.com/79580.html
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | any hints for
JAPANESE SUMS SUDOKU - not able to start it. |
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Mean Minis (2020) Author
Posts: 774
Location: India | swaroop2011 - 2011-06-16 4:27 PM
any hints for JAPANESE SUMS SUDOKU - not able to start it.
Look at column 5 and/or row 5. hints are obvious, you can get started.
Edited by rakesh_rai 2011-06-16 4:37 PM
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | i started with that but i only was able to get two numbers 3 and 2 in row 5 and only number '3' in column 5.
other numbers 2 and 5 of column 5 have many possibities(in respect of position as well as numbers used)
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Location: India | You also have start marking cells which are black.
There are many openings in this example (you get a 2 sixes at R6C2, R2C6), spend some more time on the example, and you should be able to do it. |
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Location: India | It is also useful to solve the basic puzzle type (Japanese sums in this case) first before attacking Japanese Sums + Sudoku. |
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Diagonal Vision Author
Posts: 337
Location: Switzerland | Administrator - 2011-06-16 3:40 PM
Also, see Rohan's blog for 2 more puzzles from Sudoku Cup 1.
Here is another sudokuro that I've just created (I've not time to post on my blog right now):
Fred
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Posts: 25
Location: United States | They repeat in the outlined (irregular) regions if you swap both pairs
Ah! Got it. The outlined regions were a little subtle -- didn't really notice them.
I'm glad I asked -- now I know to look for them on the real test.
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Posts: 24
Location: United States | Hmmm, does anyone else think this should affect the Sudoku ratings AND and the puzzle ratings? Hehe... This looks like a lot of fun, can't wait! |
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Classics & Regions (PR 2016/17) Author
Posts: 170
Location: Germany | After solving the puzzles in the instructions booklet, I'm looking forward to this a lot. The sample puzzles were very well done, and some were really tricky. So I think we can expect some beautiful puzzles, and fear some very difficult ones. |
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Mean Minis (2020) Author
Posts: 774
Location: India | DreamRose311 - 2011-06-17 1:15 AM
Hmmm, does anyone else think this should affect the Sudoku ratings AND and the puzzle ratings?...
You do have a point...puzzle experts definitely have some advantage in this test. |
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Location: India | rakesh_rai - 2011-06-17 4:12 PM
You do have a point...puzzle experts definitely have some advantage in this test.
We had a very similar mock16 last year. While the competition has changed considerably at LMI since then, the results of mock16 suggested that 'puzzle experts' don't really have much advantage. Having solved couple of actual puzzles from the test, I think the 'Sudoku part' is as dominant as in other Sudoku tests. |
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Location: India | Password protected booklet uploaded. It has 10 pages, each page has one 6X6 and one 9X9 of the same type. |
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L O G I D O K U — LMI June Sudoku Test — 18/19th June
