I can't confirm this but I think the amount of chess pieces obtained is either decided by your badge level (grey and green for DH) or your character's level. Not sure if this has anything to do with it but before I got my green badge on a different character I always got nice chess drops, then it started declining once I hit green undead badge.
I can't confirm this but I think the amount of chess pieces obtained is either decided by your badge level (grey and green for DH) or your character's level. Not sure if this has anything to do with it but before I got my green badge on a different character I always got nice chess drops, then it started declining once I hit green undead badge.

