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![]() ![]() ![]() ![]() ![]() Country : India | Administrator posted @ 2015-11-22 9:35 PM chaotic_iak - 2015-11-22 10:32 AM Spiral Galaxies 4/5's rules aren't very elegant... Instead of "each region has exactly one circle that is the point of symmetry" and "not all black circles are given" (which are somewhat contradictory), use "if a region contains a black circle then it is the point of symmetry". Instead of "a black circle may not be on the intersection of four cells", use "regions may not be 2x2 squares". Thanks for the suggestions. We will include these suggestions also while updating the points table in the IB. | ||||||||||||||||||
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![]() Posts: 337 ![]() ![]() ![]() ![]() Country : Switzerland | Fred76 posted @ 2015-11-22 11:20 PM chaotic_iak - 2015-11-22 10:32 AM Instead of "a black circle may not be on the intersection of four cells", use "regions may not be 2x2 squares". 2x2 squares are not the only regions that have the point of symmetry on the intersection of four cells... | ||||||||||||||||||
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Posts: 27 ![]() Country : India | mihiryadav posted @ 2015-11-22 11:36 PM Are there any more examples available from the past tests? Edited by mihiryadav 2015-11-22 11:36 PM | ||||||||||||||||||
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Posts: 774 ![]() ![]() ![]() ![]() ![]() ![]() Country : India | rakesh_rai posted @ 2015-11-22 11:36 PM Fred76 - 2015-11-22 11:20 PM chaotic_iak - 2015-11-22 10:32 AM Instead of "a black circle may not be on the intersection of four cells", use "regions may not be 2x2 squares". 2x2 squares are not the only regions that have the point of symmetry on the intersection of four cells... We are talking of regions with 4 or 5 cells only. | ||||||||||||||||||
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Posts: 774 ![]() ![]() ![]() ![]() ![]() ![]() Country : India | rakesh_rai posted @ 2015-11-22 11:37 PM mihiryadav - 2015-11-22 11:36 PM For which puzzle type?Are there any examples available from the past tests? | ||||||||||||||||||
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Posts: 27 ![]() Country : India | mihiryadav posted @ 2015-11-22 11:39 PM For Spiral galaxies 4/5... | ||||||||||||||||||
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![]() Posts: 337 ![]() ![]() ![]() ![]() Country : Switzerland | Fred76 posted @ 2015-11-22 11:46 PM rakesh_rai - 2015-11-22 11:36 PM Fred76 - 2015-11-22 11:20 PM chaotic_iak - 2015-11-22 10:32 AM Instead of "a black circle may not be on the intersection of four cells", use "regions may not be 2x2 squares". 2x2 squares are not the only regions that have the point of symmetry on the intersection of four cells... We are talking of regions with 4 or 5 cells only. Ah yes, sorry ! I haven't read all the instructions... | ||||||||||||||||||
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Posts: 774 ![]() ![]() ![]() ![]() ![]() ![]() Country : India | rakesh_rai posted @ 2015-11-22 11:48 PM mihiryadav - 2015-11-22 11:39 PM It is an exploratory type. I am not sure if it has been there earlier as part of any contest. You can get some idea from the example given. We shall try to create another example. For Spiral galaxies 4/5... Also, some links for others below: Yin yang: http://logicmastersindia.com/lmitests/?test=B2014052 Spiral Galaxies: http://logicmastersindia.com/lmitests/?test=B2014031 Fillomino: http://logicmastersindia.com/lmitests/?test=M201106P http://logicmastersindia.com/lmitests/?test=FF2 Shikaku: http://logicmastersindia.com/lmitests/?test=M201107P1 | ||||||||||||||||||
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Posts: 27 ![]() Country : India | mihiryadav posted @ 2015-11-22 11:53 PM Thank you :) | ||||||||||||||||||
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Cenan | Cenan posted @ 2015-11-23 2:03 PM Administrator - 2015-11-15 9:20 AM I want to be clear about the time period to take the test 'Regions' : Will it be possible to take it on 30th Nov or not ?![]() Link for rules and other details about Puzzle Ramayan : http://logicmastersindia.com/PR/2015-16PR.asp Instructions for Regions - http://logicmastersindia.com/PR/201511/ | ||||||||||||||||||
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Posts: 739 ![]() ![]() ![]() ![]() Country : India | vopani posted @ 2015-11-23 2:21 PM Cenan - 2015-11-23 2:03 PM I want to be clear about the time period to take the test 'Regions' : Will it be possible to take it on 30th Nov or not ? Yes. The contest will end at 23:59 GMT on 30th November, so you can take it anytime before that. | ||||||||||||||||||
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Posts: 774 ![]() ![]() ![]() ![]() ![]() ![]() Country : India | rakesh_rai posted @ 2015-11-26 10:56 PM Instruction Booklet updated: Points table has been added and Spiral Galaxies 4/5 rules have been made more elegant based on feedback. | ||||||||||||||||||
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Posts: 774 ![]() ![]() ![]() ![]() ![]() ![]() Country : India | rakesh_rai posted @ 2015-11-27 10:45 PM One clarification on the answer keys: If parts of the same region come more than once in the answer key, they need to be mentioned separately in the answer key. | ||||||||||||||||||
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![]() ![]() ![]() ![]() ![]() Country : India | Administrator posted @ 2015-11-27 10:51 PM Puzzle Booklet is uploaded now. It contains seven pages. | ||||||||||||||||||
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An LMI player | An LMI player posted @ 2015-11-28 1:29 AM
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Posts: 419 ![]() ![]() ![]() ![]() Country : India | kishy72 posted @ 2015-11-28 1:54 AM
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Posts: 80 ![]() ![]() ![]() ![]() Country : Canada | achan1058 posted @ 2015-11-28 2:37 AM
I found this to be very easy. Some of the puzzles are simply too guessable. | ||||||||||||||||||
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Posts: 11 Country : United States | Eykir posted @ 2015-11-28 3:18 AM
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Posts: 668 ![]() ![]() ![]() ![]() ![]() Country : India | swaroop2011 posted @ 2015-11-28 5:51 AM
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Posts: 668 ![]() ![]() ![]() ![]() ![]() Country : India | swaroop2011 posted @ 2015-11-28 5:56 AM Thanks for awesome set of puzzles. It were really nice, especially Spiral Galaxies. Happy to finish the set, after disappointing performances in last 2 rounds. Could have done lot better. I finished All puzzles except 5 Galaxies in 40 min. Then took another 23 minutes(I know I am slow in galaxies,, so kept for last) to complete this 5 until I broke Spiral Galaxies 4/5. I had to again and again and end up no solution at center. Later I finally realized my mistake, somehow in the bottom right corner where there are 2 horizontal I's of size 4 and 1 of size 4. I was drawing it as 2 of size 5 and 1 of size 4, don't know why. But none the less finally realized and completed just in time. Looking forward next round Snakes. :) | ||||||||||||||||||
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Posts: 774 ![]() ![]() ![]() ![]() ![]() ![]() Country : India | rakesh_rai posted @ 2015-11-28 8:52 AM swaroop2011 - 2015-11-28 5:56 AM Thanks Swaroop. Yes. The Spiral Galaxies were a bit trickier compared to the rest of the puzzles. Good to see you completed the set, which I expected as well. Thanks for awesome set of puzzles. It were really nice, especially Spiral Galaxies. Happy to finish the set, after disappointing performances in last 2 rounds. Could have done lot better. I finished All puzzles except 5 Galaxies in 40 min. Then took another 23 minutes(I know I am slow in galaxies,, so kept for last) to complete this 5 until I broke Spiral Galaxies 4/5. I had to again and again and end up no solution at center. Later I finally realized my mistake, somehow in the bottom right corner where there are 2 horizontal I's of size 4 and 1 of size 4. I was drawing it as 2 of size 5 and 1 of size 4, don't know why. But none the less finally realized and completed just in time. Looking forward next round Snakes. :) In the last puzzle, in the bottom right corner, one 'I' pentomino and one 'I' tetromino were obvious. The third one could be a 5 or a 4 length 'I'. If you make it 5 there is no solution in the center area. But I think this becomes clear once you proceed from the left area. | ||||||||||||||||||
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Posts: 668 ![]() ![]() ![]() ![]() ![]() Country : India | swaroop2011 posted @ 2015-11-28 10:26 AM Yes you are correct, it becomes clear when approached from left. But the problem was I took it 5 by default , don't know what made me. Anyways waiting for others performances. :) Edited by swaroop2011 2015-11-28 10:27 AM | ||||||||||||||||||
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Posts: 33 ![]() Country : Japan | Kota posted @ 2015-11-28 12:14 PM I enjoyed this set. Thank you so much. BTW, why did the author make a new rule "There cannot be a circle at the intersection of four cells." in Spiral Galaxies 4/5? In original Spiral, I think it has no problem that there appear such circles. In fact, The puzzle in this set has multiple solutions if it permits such circles... | ||||||||||||||||||
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Posts: 33 ![]() Country : Japan | Kota posted @ 2015-11-28 12:36 PM
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Posts: 241 ![]() ![]() ![]() ![]() Country : Indonesia | chaotic_iak posted @ 2015-11-28 12:37 PM
A nice set of puzzles. I liked the Spiral Galaxies set as well, but the Fillomino set was also nice; since I like Fillomino puzzles in general, I go with that choice. Particular favorites: Spiral Galaxies 4, Shikaku 4, No-Rectangles Fillomino, Spiral Galaxies 4/5. I find Shikaku 4 to be overvalued (I did it in 2 minutes), and Spiral Galaxies 4/5 as well (6 minutes, compared to Spiral Glaxies 4 which took 14 minutes). Maybe that's just because I suck at Spiral Galaxies, and Spiral Galaxies 4/5 is closer to object placement (only 5 possible shapes) than region division. |