ConwayLife.com

Nicolay's modification of WLS is, as the name suggests, a version of WLS (based on v0.62) by Nicolay Beluchenko. It includes several very useful features, namely: the retention of toroidal boundary conditions only present in earlier versions of WLS, a method of hashing solutions which allows discon...

What is the smallest object that has no known glider synthesis? All spaceships up to 34 bits are solved, except 2* 31- 32-bit c/2 orthogonal ones, 3* 26-, 29- and 30- bit c/3 orthogonals, 3* 27-, 32-, and 33-bit c/4 diagonals, and 3* 34-bit B29s w/glider tag-along. (* see below.) x = 160, y = 137, ...

Mmm, I started poking around here, but so far only this: x = 15, y = 58, rule = Life:T16,100 3bo7bo$3b2o5b2o$bo2bo5bo2bo$o13bo$o2bo7bo2bo$obo9bobo$obo2bo3bo2bobo$o b2ob2ob2ob2obo$o2bo2bobo2bo2bo$2o4bobo4b2o$o2bo7bo2bo$4o7b4o$4bo5bo$4b 3ob3o$4b3ob3o$4bobobobo$3b2obobob2o$6bobo$6bobo$3b2obobob2o$2bob...

How about if greyships get their own collection, like maybe a ZIP archive in Very Large Patterns in Golly's Online Archives? I would really like to see this. It's the one piece of low-period spaceship technology that I haven't been able to incorporate effectively into the jslife-moving collection. ...

Speaking of waves: Here is a c/5 wave (shown moving to the left)... Could you help me to find completions? Front Great! The front is typically the harder part. Here is a solution for the back: x = 152, y = 132, rule = B3/S23 b5o$4bobo$o6bo$o3bo$b2obo$4bob2o$2b2o$3bo$b2o$obo$ob2o$bobo$3bo2$3bo$b obo...

here is a c/5 wickstretcher based on the same theme Nice! Inspired by this 4-line wickstretcher, here is the symmetric 2-line version: x = 197, y = 82, rule = B3/S23 95b2obob2o$95b2obob2o$91bob2o3bo3b2obo$90b2ob3o5b3ob2o$89bo5bo5bo5bo$ 89b3o13b3o$91bo13bo2$92b2o9b2o$95bo2bo2bo$93bob3ob3obo$93b5ob5o...

Is there a collection of w19 symmetric c/5 ships? There's a few of them in jslife, but I don't know if there's a full collection of them. Sokwe might know. I think C/5 w18 even symmetric ships were completely enumerated, but I don't know about w19 odd symmetric. I don't remember there being anythin...

otismo wrote: ↑

April 9th, 2020, 12:19 pm

how about collated curated pattern archives ?

There are a few linked from this wiki page. I also keep a few collections here. There really needs to be more work done on pattern collections. We especially need an updated oscillator collection.

qfind gave me some weird results on asymmetric. Yep. I'm getting failed ships in this rule : These failed ships seem to all leave the left side of their width-10 bounding box at some point in their evolution. If you disallow these births, the pattern operates normally. This bug probably appeared wh...

Here is the wave collection from jslife: #C A small collection of moving wicks (or "waves"). #C #C The p105 wave leaves behind rows of blocks. #C The p8 wave leaves blinkers. x = 416, y = 405, rule = B3/S23 318bo33boo$178bo26bobo47boo23b5o32b3oboo12bo3bo3bo8boo$177bo27bobo28bo bobo13boo12bobobo6b3o1...

Congratulations on finding the new 2c/7 component! I've reworked the chart of (1,0)c/6 components and connections once again: Regarding the A and H components, I was unable to find a good reference for their discovery. Although jslife claims that at least A was found by Hartmut Holzwart, the earlies...

The width 12 (1,0)c/6 search was a success. It showed up last night but I didn't realize it was a spaceship until today. Great work! I was always pretty sure that a width-12 c/6 ship existed, but I honestly expected it to be a bit shorter. It's still possible that a shorter ship exists, but I'm muc...

With the completion of the 2019 Pattern of the Year competition , it is now time to unlock this topic. As already stated, the first 3 ranks from each Pattern of the Year competition are automatically nominated (not including 2012, since no votes were cast). I think this is a reasonable starting plac...

JP21 wrote: ↑

March 6th, 2020, 11:06 pm

Where is the newer version??? https://www.conwaylife.com/wiki/P55_pre-pulsar_hassler

Either in jslife or the osc-supplement collection. These two collections contain just about everything up to the end of 2014.

Matthias, What is the current status of the search? I somehow lost the overview. I understand that the width 19 search as well as the width 21 gutter search produced no ships, but promising partial results. Correct? The width-19 search was completed with nothing found. The width-21 gutter search ha...

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I still regularly get crashes on the original qfind-c8.cpp with multiple threads. I believe it may be because in function success() both srows and ssrows are grown with realloc() . However I think that memory is shared between the threads and it's possible that realloc() might move the memory block...

How can I eliminate duplicate results? If you are finding a large number of spaceships, you will probably want to use the 'x' command which prevents the program from printing spaceships during the deepening stage. This will eliminate many of the duplicate patterns, but not all of them. There is no ...

I recommend getting a compiler that supports openMP. Where can I find one? I don't know your particular setup. Maybe the compiler you use already supports openMP and you just haven't found the right settings. I personally use g++ from the GNU compiler collection. Installation instructions will vary...

Sorry for my noobiness at spaceship searches (I don't use search programs other than apgsearch), by why are spaceship searches done by width? Calcyman gave one good reason, but there is another. It seems that these long, thin searches are generally the most effective. That is, you can get long part...

LaundryPizza03 wrote: ↑

February 18th, 2020, 11:15 am

replaced all the instances of omp_get_thread_num() with 1.

I think that you would need to replace them with 0, not 1. However, I recommend getting a compiler that supports openMP.

A weird thing happened when searching for a 2c/6o. A c/3 (unsimplified) popped out. If you want to find a period-6 ship, qfind might be better than zfind. Edit: If you want to find a symmetric 2c/6 ship of width 17, I recommend running qfind with the following settings: ./qfind B2n3/S23-q p6 k2 w9 ...

Sadly I don't currently have time to figure out why this is happening.

calcyman wrote: ↑

February 10th, 2020, 3:51 pm

lack of stator

I didn't even think about that. This is the first strictly volatile p16.

A for Awesome noticed that rliston's G1 searching turned up something new today: this new p16 oscillator. It breaks both the minimum population and bounding box records for a p16 oscillator. It has a few weak sparks, so it will probably give some smaller LCM oscillators, although I'm not sure if it...