June 2018

Batalov · 2018-05-29, 01:20

June 2018

Dieter · 2018-06-04, 07:33

Checking all possibilities of setting either 5 "L"s or 5 "J"s in the box I find exactly eight common shapes. All these shapes have a "great" hole inside (three adjacent places).
The computing times are negligible.
Has one of you the same problem?

henryzz · 2018-06-04, 09:34

Quote:

Originally Posted by Dieter

Checking all possibilities of setting either 5 "L"s or 5 "J"s in the box I find exactly eight common shapes. All these shapes have a "great" hole inside (three adjacent places).
The computing times are negligible.
Has one of you the same problem?

Is the size of the box fixed?

Dieter · 2018-06-05, 10:58

Quote:

Originally Posted by henryzz

Is the size of the box fixed?

I thought so, but now I believe, that the size is not fixed.
It's no problem to find solutions in bigger boxes.

petrw1 · 2018-06-05, 15:13

I believe a box is irrelevant.

It simply says:

Quote:

...find an asymmetrical shape without holes that can be constructed both from five "L"s and from five "J"s.

However I'm not sure what "translated" means.

Quote:

There are two L-shaped one-sided tetrominoes - tetrominoes that can be translated and rotated but not flipped:

science_man_88 · 2018-06-05, 15:40

Quote:

Originally Posted by petrw1

I believe a box is irrelevant.

It simply says:

However I'm not sure what "translated" means.

Via google:

MATHEMATICS
movement of a body from one point of space to another such that every point of the body moves in the same direction and over the same distance, without any rotation, reflection, or change in size.

Dieter · 2018-06-06, 05:29

Quote:

Originally Posted by petrw1

I believe a box is irrelevant.

It simply says:

However I'm not sure what "translated" means.

1) For using "brute force" I need a box in order to have limits of the variables. Apart from that the box is irrelevant.

2) "Translate and rotate but not flip" can be defined with a simple comment, too:

The tetromino may be moved just like in TETRIS.

Xyzzy · 2018-07-03, 14:11

https://researchweb.watson.ibm.com/h.../June2018.html

a1call · 2018-07-04, 06:45

I think a little colour is easier on the perception.
https://drive.google.com/file/d/1WUo...Y7CvXY878/view

2018-05-29, 01:20	#1
Batalov "Serge" Mar 2008 Phi(4,2^7658614+1)/2 2505₁₆ Posts	June 2018 June 2018

2018-07-04, 06:45	#9
a1call "Rashid Naimi" Oct 2015 Remote to Here/There 3·5·137 Posts	I think a little colour is easier on the perception. https://drive.google.com/file/d/1WUo...Y7CvXY878/view Last fiddled with by a1call on 2018-07-04 at 06:49

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
June 2017	R. Gerbicz	Puzzles	14	2017-07-03 20:01
June 2016	Xyzzy	Puzzles	16	2016-07-07 02:51
June 2015	Batalov	Puzzles	10	2015-07-07 14:59
LLRnet/PRPnet rally June 4th-6th	gd_barnes	No Prime Left Behind	61	2010-07-30 17:28
Max on the move: vacation June 28/30-July 4	mdettweiler	No Prime Left Behind	8	2009-07-05 05:20

2018-06-04, 07:33	#2
Dieter Oct 2017 73₁₆ Posts	Checking all possibilities of setting either 5 "L"s or 5 "J"s in the box I find exactly eight common shapes. All these shapes have a "great" hole inside (three adjacent places). The computing times are negligible. Has one of you the same problem?

2018-07-03, 14:11	#8
Xyzzy "Mike" Aug 2002 20040₈ Posts	https://researchweb.watson.ibm.com/h.../June2018.html