v2.5.2

Release Notes

Fixes

• Fixes issue regarding legal move generation for king in check due to error in moves available for the attacking piece

v2.5.1

Release Notes

Fixes

• Swift 3 preview 6 and Xcode 8 beta 6 compatibility

v2.5.0

Release Notes

New Features

• Added pinned(for:) method to Board
• Added between(_:), isBetween(start:end:) and line(with:) methods to Square
• Added hasMoreThanOne to Bitboard

Enhancements

• Made legal move generation/checking faster for king pieces

Fixes

• Fixed conditions for castling so that a king cannot castle in check and it can't castle through squares that are being attacked

v2.4.1

Release Notes

Fixes

• Swift 3 preview 4 and Xcode 8 beta 4 compatibility

v2.4.0

Release Notes

New Features

• Added init(position:whitePlayer:blackPlayer:variant:) to Game #7

Enhancements

• Greatly improved performance of attackers(to:color:) method for Board
• Improved performance for pieceCount(for:) for Board
• Improved performance for contains(_:) for Bitboard

v2.3.0

Release Notes

New Features

• Added captureForLastMove to Game #6

v2.2.0

Release Notes

New Features

• Added execute(uncheckedMove:) family of methods to Game
• Added initializer with moves array to Game

Enhancements

• Improved performance for bitboard(for color: Color) method for Board

v2.1.0

Release Notes

New Features

• Added static white, black, kingside, and queenside constants to CastlingRights and CastlingRights.Right
• Added canCastle(for:) methods to CastlingRights that take a Color or Board.Side
• Added init(color:) and init(side:) to CastlingRights

v2.0.1

Release Notes

Fixes

• Fixed Xcode 8 beta 3 warnings for guard statements

v2.0.0

Release Notes

Enhancements

• Performance greatly improved when performing operations with Board

New Features

• Most significant bit operations to Bitboard:

  • Properties: msb, msbIndex, msbSquare
  • Methods: popMSB(), popMSBIndex(), popMSBSquare()

• Board initializer from arrays of piece characters

  Board(pieces: [["r", "n", "b", "q", "k", "b", "n", "r"],
                 ["p", "p", "p", "p", "p", "p", "p", "p"],
                 [" ", " ", " ", " ", " ", " ", " ", " "],
                 [" ", " ", " ", " ", " ", " ", " ", " "],
                 [" ", " ", " ", " ", " ", " ", " ", " "],
                 [" ", " ", " ", " ", " ", " ", " ", " "],
                 ["P", "P", "P", "P", "P", "P", "P", "P"],
                 ["R", "N", "B", "Q", "K", "B", "N", "R"]])

• Parsing PGN string data with PGN(parse:)

• Exporting PGN string data with exported()

• New Player struct

Breaking Changes

• Piece has been changed to a struct type with nested a Kind type
  • Values such as isKing and relativeValue now belong to Kind
• The argument-less bitboard() method for Board has been changed to occupiedSpaces
• Replaced Game.Mode with two Player instances for a game

Fixes

• Calling redoMove() would sometimes cause a crash if the Game instance had no available moves (e.g. was over).
• The Board playground view for iOS and tvOS was flipped vertically
• canPromote(_:) for Piece didn't take king into account
• Castling rights weren't restored in undoMove()
• execute(move:) didn't check the promotion piece's kind