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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1798
   
Location: India | Megu3 - 2014-05-25 6:17 PM
I have a query in A2 Match the following puzzle. I have submitted the answer as ZYWX and I haven't got any points for that.
I arrived at the result as follows:
2 + 3 x 6 / 9 = 4
4 x 5 / 2 - 7 = 3
5 x 3 - 9 / 6 = 1
6 / 2 + 7 - 8 = 2
What is the right answer?
Without releasing right answer yet, I'll give you a chance to solve it yourself. You've missed the rule that operator precedence is followed, i.e., Multiplication and division are done before addition and subtraction. So your equation for 1 will actually become 15 - 1.5, not 6/6. |
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Posts: 123
Location: India | -
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5 x 3 - 9 / 6 is (5 x 3) - (9/6) = 15-(3/2) = 13.5
Regards,
Ravi
Edited by debmohanty 2014-05-25 7:44 PM
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Posts: 80
Location: Canada | Equation 3 is wrong, since you need to respect the order of operations, which gets you 13.5.
Edited by achan1058 2014-05-25 6:25 PM
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| | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | 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 | | | What was your opinion of the booklet formatting and printing? | Just right | |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 164
Location: Slovakia | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | 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 | | | What was your opinion of the booklet formatting and printing? | Too many pages / too large grids | |
Some grids were too large. Everything else was great. Thanks for the puzzles :) |
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Posts: 57
Location: India | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | 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 | | | What was your opinion of the booklet formatting and printing? | Just right | |
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Posts: 9
Location: India | Oh! I get it now! How silly of me!
I applied the operator precedence rule in other 3 parts and failed at one part.
I solved it now, I hope I have got it right this time:
2 + 3 x 6 / 9 = 4
4 - 5 x 2 + 7 = 1
5 - 3 / 9 x 6 = 3
6 / 2 + 7 - 8 = 2
I will have to keep in mind to re-check everything before submission for future contests, however few puzzles I am able to finish.
Thank you for the reply. Also thanks to the other two people who replied.
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Posts: 24
Location: Poland | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion of the booklet formatting and printing? | Just right | |
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| | Did the Instructions Booklet (IB) provide enough information about participating in IPC? | Yes, mostly. | | | Did you understand the puzzle rules, examples and answer keys from the IB? | I understood all of them. | | | Did you find enough easy puzzles to solve during the championship? | No, there were really few easy puzzles. | | | After your experience in IPC, are you going to participate in future championshiops or contests at LMI? | Most likely | |
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WSPC Organizer
Posts: 542
Location: India | Congrats to all the winners.
Well Done Amit with great performance.
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PR 2020 (Shading and Loops) Author
Posts: 668
Location: India | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | 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 | | | What was your opinion of the booklet formatting and printing? | Just right | |
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Posts: 114
Location: India | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion of the booklet formatting and printing? | Just right | |
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Posts: 114
Location: India | In E1 Star battle my logic went like this.
1. Every region need to have 6 stars.
2. At C2 there must be a stars.
3. The same region holds 2 stars at column A and D.
4. So one star must be at B or C9.
5. The other small region holds 2 stars at column F and H.
6. One star at G 5/6/7.
7. One at I 2/3.
But i wasted hell of time and could not finish the puzzle. Can any one guide me were I went wrong. |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1798
Location: India | devarajand - 2014-05-26 8:02 AM
In E1 Star battle my logic went like this.
1. Every region need to have 6 stars.
2. At C2 there must be a stars.
3. The same region holds 2 stars at column A and D.
4. So one star must be at B or C9.
5. The other small region holds 2 stars at column F and H.
6. One star at G 5/6/7.
7. One at I 2/3.
But i wasted hell of time and could not finish the puzzle. Can any one guide me were I went wrong.
You haven't gone wrong anywhere so far, but you can reduce things more. Remember that there can be only one star for each 2x2 area of cells. Dividing the "K" shape into this distribution helps - 1 star in I23/H3. 1 star in H34. 1 star in F34. One star in F56/G56. One star in F78. One star in H78. (G7 cannot be a star because you need 2 stars in F78/G7/H78 and this will contradict things). You should be able to reduce it further from here. |
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Posts: 20
Location: United States | I'm embarrassed, but I have no idea how the matching rule was supposed to work for A4. Can someone put me out of my misery? |
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Posts: 114
Location: India | G6 also cannot hold a star. If we place a star at G6, F8 and H8 must hold a star, this restricts placing any star between E9 and I9. Is this logic correct. |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1798
Location: India | devarajand - 2014-05-26 9:03 AM
G6 also cannot hold a star. If we place a star at G6, F8 and H8 must hold a star, this restricts placing any star between E9 and I9. Is this logic correct.
No, you can still fit 2 stars in the remaining 4 cells of the row, A/D9 and B/C9. You can reduce it elsewhere on the K. |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1798
Location: India | spelvin - 2014-05-26 8:33 AM
I'm embarrassed, but I have no idea how the matching rule was supposed to work for A4. Can someone put me out of my misery?
Hint: What are the images made up of? |
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Posts: 268
Location: India | Congrats Amit, Rohan and Swaroop for the Podium finish. All the Best for the WPC. :-) |
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Hex Slitherlink Author
Posts: 145
Location: France | Hmmm, my first time ever having a time bonus :) I think someone mistakenly configured the scoring page so that solving 26 puzzles would give a time bonus, but solving more wouldn't :-) Apart from that, great puzzles!
Denis |
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Posts: 83
Location: Czech Republic | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | 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 | | | What was your opinion of the booklet formatting and printing? | I have a different complaint | |
Very nice puzzles!
My only complaint is with Coded TomTom puzzle (C3). Symbol for division looks very similar to plus symbol. Maybe next time using / symbol for division might be better.
Edited by Gotroch 2014-05-26 1:17 PM
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Posts: 1
Location: India | | Did the Instructions Booklet (IB) provide enough information about participating in IPC? | Yes, mostly. | | | Did you understand the puzzle rules, examples and answer keys from the IB? | I understood most of them. | | | After your experience in IPC, are you going to participate in future championshiops or contests at LMI? | Most likely | |
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Typed Logic Author
Posts: 241
Location: Indonesia | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | 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 | | | What was your opinion of the booklet formatting and printing? | Just right | |
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Shading and Loops (PR 2016/17) Author
Posts: 65
Location: United States | | How balanced do you think the puzzle types of this test were? | Perfectly balanced | | | What was your opinion of the distribution of easy/hard puzzles? | A bit hard | | | What did you think about the puzzle quality of the test? | Very nice | | | What was your opinion of the booklet formatting and printing? | Just right | |
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2021 World Sudoku+Puzzle Convention Organizer
Posts: 1798
Location: India |
More details about the Prizes:
The top 3 participants receive a Logic Masters India mug, with their position displayed on it. Participants ranked 4th ~ 10th place will receive a Logic Masters India photo magnet.
A reminder that though e-certificates for participation will be sent out to all, participants can place orders for a hard copy of their certificate which will mention the rank and have the signature of the organizer. The price for a certificate to be shipped to you is Rs.99. You can place orders by emailing your LMI-id, full name, and the address you'd like the certificate/prize shipped to, to prasannaseshadri@logicmastersindia.com.
Note: All certificates and prizes will be distributed after the Indian Sudoku Championship (which is being held this Sunday).
Just to clarify, this is only for the rankings in the official results.
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Indian Puzzle Championship 2014
