Medulla.bin is a compilation of the following components:
* Selected lines of strong books .bin and CTG (filtered and improved with a customized algorithm)
* Lines winning of PlayChess Engine Games
* Lines winning of the ICCF Correspondence Games (2016-2018) )
* Several minimum lines calculated based on their frequency in the previous sources
Notes:
All lines in Medulla must pass beta tests and several home regression tests to be included in the final compilation.