o["Passed Pawns (Midgame)"] << Option(100, 0, 200, on_eval);
o["Passed Pawns (Endgame)"] << Option(100, 0, 200, on_eval);
o["Space"] << Option(100, 0, 200, on_eval);
o["Passed Pawns (Midgame)"] << Option(100, 0, 200, on_eval);
o["Passed Pawns (Endgame)"] << Option(100, 0, 200, on_eval);
o["Space"] << Option(100, 0, 200, on_eval);