int evalPositions(final Board board, final PlayerColor color) {
                // http://chessprogramming.wikispaces.com/Simplified+evaluation+function
                final int [] pawn = {
                         0,  0,  0,  0,  0,  0,  0,  0,
                        50, 50, 50, 50, 50, 50, 50, 50,
                        10, 10, 20, 30, 30, 20, 10, 10,
                         5,  5, 10, 25, 25, 10,  5,  5,
                         0,  0,  0, 20, 20,  0,  0,  0,
                         5, -5,-10,  0,  0,-10, -5,  5,
                         5, 10, 10,-20,-20, 10, 10,  5,
                         0,  0,  0,  0,  0,  0,  0,  0 };