adds error messages to PGN reader

fixes inappropriate use of EXIT_ macros + adds a sample PGN file

simplifies Makefiles

using pkg-config in hand crafted make file

fixed hypthetical bug, where the client address is not correctly retrieved by accept()

updated copyright and version info

implemented FEN

fixed new network games starting with BLACK

added program version

added support for game continuation over network + fixed major bug in checkmate anticipation when the king is attacked diagonally

(0) -10 +10 tip

mercurial