1º We have to have a database in pgn format to create the opening book. Said database must be exclusively of chess engines and if possible of the chess engine for which you are going to create said book.
2º That being said, we are going to use Khalid Omar's tool to create the opening book, debugging the database in question. The process is long, so please be patient.
3ºNow the tool will filter the games by games won by the white and black sides. Rejecting those that may not be valid. This tool is really very useful. ( thank you Khalid Omar)
4º about five minutes. later we go to use the Poly17 tool for add the learn from database to bin book.
5º We advance work and we already have the windows console executed as administrator in the directory where we have Poly17 hosted. To later merge the book created with the last games played and the base book with all the games in the pgn database
6º we need the file2 for merge the two files bin.
7º the eval derivated of work the tool khalid omar copy and paste into the path database (scid vs Pc)
8ºalso, copy and paste the book later add learn from Poly17 to path scid vs pc. For add the learn the database need the eval from engines into ogn file.
9º Copy the database pgn into the path poly 17.
10º optimize an opening book in bin format from scid
11º 0 not play 100 play the move.
12º This work is done manually and it is recommended not to use the chess engine unless the line we are working on is unknown. But it works perfectly with any uci chess engine.
13º now one game and settings with eman.
13º with eman bestmove always true or on. and if you add 1-50 ( blitz) or 1-100 always playe the move with more point from 0-100. If you add 2-100 will play variety and diferent move. For tournament better 1, but if the book is high optimized you can to add 2-50. f.e
14 and thank you very much if you see this tutorial and enjoy with the game.
the video tutorial with a game into infinitychess.com
https://youtu.be/zz75BY1ROyA
Good bye chess friends!