fakedata
ChessPositionRanking
Our great sponsors
| fakedata | ChessPositionRanking | |
|---|---|---|
| - | 29 | |
| 145 | 130 | |
| -0.7% | - | |
| 1.8 | 2.5 | |
| almost 2 years ago | 5 months ago | |
| Haskell | Haskell | |
| BSD 3-clause "New" or "Revised" License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
fakedata
We haven't tracked posts mentioning fakedata yet.
Tracking mentions began in Dec 2020.
ChessPositionRanking
- Chess Position Ranking
-
How to Store a Chess Game in 26 Bytes Using Bit-Level Magic
3. There's extra nuanced things you might want to handle in the coding, like that pawns can't be on their own back row. That is significantly harder.
It looks to me like https://github.com/tromp/ChessPositionRanking has resolved these sorts of issues, but I haven't dug into exactly how.
-
Permutation Iteration and Random Access
Multinomial rankings can be combined with a dozen others to rank a subset of all chess positions including all legal ones. This allows one to sample millions of random such positions, determine how many are legal, and thus obtain an accurate estimate of 4.8&10^44 legal chess positions [2].
[1] https://github.com/tromp/ChessPositionRanking/blob/main/src/...
-
The number of legal Chess diagrams is less than 4 × 10^37 which is an improvement on the previous upper bound of 2 × 10^40 by Steinerberger.
The key words being "without promotion". Both bounds, this one and Steinerberger's, only consider positions reachable without promotion. Allowing promotions, one estimate suggests that the number is close to 4.82 × 10^44.
-
eli5 With billions and billions of people over time, how can fingerprints be unique to each person. With the small amount of space, wouldn’t they eventually have to repeat the pattern?
source
- Accurately estimating the number of legal chess positions
-
"Chess too simple for my big brain, not like mobile strategy game"
This one as well as Shannon number wiki seem to say that possible sensible moves are about 10^40 while and 10^120 while taking any moves (maybe including some illogical / illegal ones) .
-
How to build a Chess Engine, an interactive guide
Shannon's estimate was based on very primitive methods; by generating random positions and using fairly advanced methods to see whether they are legal or not (ie., can you construct a proof game for it, or prove that it could never happen), you will get much closer. A group of people have been working on this, and their current best estimate is (4.822 +- 0.028) * 10^44, or a bit over 148 bits. (Amazingly enough, Shannon wasn't all that far off on this account! His estimated number of legal games seems much more dodgy, though.)
http://talkchess.com/forum3/viewtopic.php?f=7&t=77685&sid=e3...
Practically speaking, https://github.com/tromp/ChessPositionRanking gives a number between 0 and approx. 8.7 * 10^45 for any legal position, so it's only a couple of bits away from optimality.
-
Ask HN: Teach Me Something New
The number of chess positions has now been estimated with 2 digits of accuracy as ~ 4.8 x 10^44: https://github.com/tromp/ChessPositionRanking
What are some alternatives?
fakedata-quickcheck - Fake a -> Gen a
kaldi-gstreamer-server - Real-time full-duplex speech recognition server, based on the Kaldi toolkit and the GStreamer framwork.
fused-effects-random - Random number generation for fused-effects.
hackernews - Hacker News web site source code mirror.
FUZIX - FuzixOS: Because Small Is Beautiful
swi-mqtt-pack - MQTT pack for SWI-Prolog
mtpng - A parallelized PNG encoder in Rust
Etar Calendar - Android open source calendar
bert-for-inference - A small repo showing how to easily use BERT (or other transformers) for inference
syzygy-tables.info - User interface and public API for probing Syzygy endgame tablebases
ZeroTier - A Smart Ethernet Switch for Earth
Nebula - A scalable overlay networking tool with a focus on performance, simplicity and security