v1.5

Extracting working with Forsyth–Edwards Notation to the separate package and refactoring.

Change Log

• extracting working with Forsyth–Edwards Notation to the separate package;
• refactoring.

Features

• representing the board as an associative array of pieces with their positions as keys;
• immutable applicating moves to the board via copying the latter;
• checkings of moves:
  • universal;
  • individual for all types of pieces;
• generating moves via filtering from all possible ones;
• using an abstraction of a piece;
• Forsyth–Edwards Notation:
  • parsing:
    • of a piece kind;
    • of a piece color;
    • of a board;
  • serialization:
    • of a piece kind;
    • of a piece color;
    • of a board.