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Something is Missing — LMI May Sudoku Test — 28th and 29th May79 posts • Page 3 of 4 • 1 2 3 4
@ 2011-05-30 12:18 PM (#4594 - in reply to #4585) (#4594) Top

harmeet



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harmeet posted @ 2011-05-30 12:18 PM

Excellent puzzles, Jakub!
Lost lot of time in "which digit is missing" because i forgot a rule that all digits on the connected green line are different; realizing it just in time.
the instructionless puzzle is still intriguing me... can anyone help in letting know the instructions?

Best regards.

Edited by harmeet 2011-05-30 12:20 PM
@ 2011-05-30 12:27 PM (#4595 - in reply to #4594) (#4595) Top

debmohanty




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debmohanty posted @ 2011-05-30 12:27 PM

harmeet - 2011-05-30 12:18 PM

the instructionless puzzle is still intriguing me... can anyone help in letting know the instructions?

I must admit that I didn't get it for a while.
Instead of revealing the answer, let me give you a clue.
Spoiler: show

Just focus in the grid box-wise (i.e. analyze each box individually)
@ 2011-05-30 1:37 PM (#4596 - in reply to #4576) (#4596) Top

prasanna16391



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prasanna16391 posted @ 2011-05-30 1:37 PM

Administrator - 2011-05-30 4:49 AM

prasanna16391 - 2011-05-30 1:31 AM

Excellent puzzles, I did the silly silly idiotic mistake of putting the "Incomplete Sums" Answer key in the "X is Alive" space :( probably missed 60 points coz of that, would love to know if that answer was right.
The answer is wrong by few digits :-)


Thats good to know, I guessed once towards the end knowing time was running out and I didn't want to miss submission by few seconds again
@ 2011-05-30 1:45 PM (#4597 - in reply to #4468) (#4597) Top

shreyas2k6



Posts: 2

Country : India

shreyas2k6 posted @ 2011-05-30 1:45 PM

Hi,

I submitted 7 correct answers and it shows as 0/7. I sent in answers to Nonconsecutive, Kropki, Jigsaw, Toroidal, Incomplete Sums, Draw a Jigsaw and Which Digit is Missing? My user name is shreyas2k6 and I'm Shreyas for India.

Please check the same. I worked really hard on these puzzles :)
@ 2011-05-30 1:49 PM (#4598 - in reply to #4597) (#4598) Top

debmohanty




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Country : India

debmohanty posted @ 2011-05-30 1:49 PM

shreyas2k6 - 2011-05-30 1:45 PM

Hi,

I submitted 7 correct answers and it shows as 0/7. I sent in answers to Nonconsecutive, Kropki, Jigsaw, Toroidal, Incomplete Sums, Draw a Jigsaw and Which Digit is Missing? My user name is shreyas2k6 and I'm Shreyas for India.

Please check the same. I worked really hard on these puzzles :)
I thought you exactly know why you have got 0 even after submitting 7 puzzles correctly.
@ 2011-05-30 1:58 PM (#4599 - in reply to #4468) (#4599) Top

utkaarsh



Posts: 89
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Country : India

utkaarsh posted @ 2011-05-30 1:58 PM

I played to the theme of "Something is Missing" , For Instructionless -missed typing the 3 in column A answer of 249157(3)86, need to get myself a new keyboard ....
organisers can this be given a marginal benefit of doubt, rest 17 nos are in correct order

But the puzzle was the best i liked, difference was same as the box no ... nice one !!

Edited by utkaarsh 2011-05-30 1:59 PM
@ 2011-05-30 2:07 PM (#4600 - in reply to #4599) (#4600) Top

debmohanty




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Country : India

debmohanty posted @ 2011-05-30 2:07 PM

Unlike puzzle tests, in Sudoku tests we don't allow any overrides.
No points for for missing a digit OR swapping 2 digits OR typing same digits twice (all of these happen pretty regularly)

The only override we allow in Sudoku tests is row/column swaps (i.e. entering Row A digits in Row B and vice versa) OR if a given clue is typed wrongly.

@ 2011-05-30 3:09 PM (#4601 - in reply to #4468) (#4601) Top

rob



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rob posted @ 2011-05-30 3:09 PM

I thought the puzzles were all beautiful. I particularly loved "Draw A Jigsaw".

After performing quite poorly on the test, I've since gone through and solved them all. I eventually got through all of them quite smoothly, with the exception of the toroidal sudoku, so I'm wondering if I missed an easier break-in there. Here's how I could solve it:

1. Note several immediate pairs that need to be separated (4-4-4, 9-9, 8-8).
2a. If the column separator is index 0 (before column 1), the second 4-4 forces the row separator to index 0 (so classical sudoku). But then the bottom right square can't have a 5.
2b. Column separator index 1 forces row separator index 1 by the pairs from step 1.
2c. Column separator index 2 forces row separator index 1 or 2 to separator the 9-9 pair. In row 7, the 8 can go in two places, forming two potential 8-8 pairs, none of which are separater by column index 2 or row index 1.

We're left with options (1,1) and (2,2).

3. In row four, the 1 must go in column 1 with either option.

4?. Looking at row 7, columns 7 and 8 can only contain 19 and 18, respectively. Here, I somehow deduced that these must be 9, 1, forcing option (1,1). I can't figure out this step anymore at the moment.


Cheers
Robert
@ 2011-05-30 3:12 PM (#4602 - in reply to #4600) (#4602) Top

utkaarsh



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utkaarsh posted @ 2011-05-30 3:12 PM


Subject: Re: Something is Missing — LMI May Sudoku Test — 28th and 29th May @ 2011-05-30 2:07 PM (#4600 - in reply to #4599)

Unlike puzzle tests, in Sudoku tests we don't allow any overrides.
No points for for missing a digit OR swapping 2 digits OR typing same digits twice (all of these happen pretty regularly)

The only override we allow in Sudoku tests is row/column swaps (i.e. entering Row A digits in Row B and vice versa) OR if a given clue is typed wrongly.

fair enough
@ 2011-05-30 3:50 PM (#4603 - in reply to #4585) (#4603) Top

uvo



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uvo posted @ 2011-05-30 3:50 PM

debmohanty - 2011-05-30 6:48 AM
120 minutes would have been more appropriate - at least couple of players could have completed, but I'm not sure.
Some of the puzzles were very hard - as I see from the score page, lots of players last submitted puzzles long time before their scheduled end time (e.g. Ulrich 23 minutes)


During these 23 minutes, I managed to break the "Draw a Jigsaw" puzzle twice - it wasn't that difficult, but placing the same digit twice in the same area surely doesn't help. I wonder how many chances I get to beat Thomas on a Sudoku contest...
@ 2011-05-30 4:52 PM (#4604 - in reply to #4595) (#4604) Top

harmeet



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Country : India

harmeet posted @ 2011-05-30 4:52 PM



Got it... so easy with the clue... thanks for not sharing the instructions.

Edited by harmeet 2011-05-30 4:54 PM
@ 2011-05-30 6:08 PM (#4610 - in reply to #4468) (#4610) Top

RJH0723



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Country : United States

RJH0723 posted @ 2011-05-30 6:08 PM

Could anyone please show the break-in for the Draw A Jigsaw?
@ 2011-05-30 6:26 PM (#4611 - in reply to #4610) (#4611) Top

rob



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rob posted @ 2011-05-30 6:26 PM

RJH0723: Let me know if this is not detailed enough.

1. Consider the 4 in the last column, and the 2 in the second to last column. Note that the 2's area can't escape to the bottom left, and deduce that there's not enough space for the 2 and 4 to be in separate areas.
2. Consider the 2 in the first row, and note that its area can't reach row four, so it needs to connect to one of the given 1s.
@ 2011-05-30 8:20 PM (#4615 - in reply to #4468) (#4615) Top

RJH0723



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Country : United States

RJH0723 posted @ 2011-05-30 8:20 PM

Thanks. I got it from there. I just needed a place to start.
@ 2011-05-30 10:51 PM (#4617 - in reply to #4468) (#4617) Top

anderson



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Country : United States

anderson posted @ 2011-05-30 10:51 PM

Thanks for a really nice test, Gotroch. Nonconsecutive with all evens was cool, Incomplete Sums and Which Digit is Missing both had great presentation and were good puzzles in themselves, Draw a Jigsaw was really nice, etc. Definitely a hard but fun and satisfying set of puzzles!
@ 2011-05-31 12:17 AM (#4619 - in reply to #4468) (#4619) Top

Para



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Para posted @ 2011-05-31 12:17 AM

Thanks for the puzzles. They were really nice. If I hadn't literally broken every puzzle I eventually solved, I would have gotten a lot more done. Not my best performance, but enjoyed it none the less.
@ 2011-05-31 4:33 AM (#4620 - in reply to #4468) (#4620) Top

Gareth



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Country : United Kingdom

Gareth posted @ 2011-05-31 4:33 AM

I really enjoyed the non-consecutive in particular - a very satisfying "aha" moment when I realised how it worked. These moments are always best, I find, when they take more than a few seconds to arrive but less than a few minutes, and this puzzle had it just right. :)
Something is Missing — LMI May Sudoku Test — 28th and 29th May79 posts • Page 3 of 4 • 1 2 3 4
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