02-16-2020, 08:16 PM
The issue with stacking games is that we generally cannot determine a reasonable upper bound on how tall a stack of pieces on a single position can get in any given game in an automated manner. In "normal" gameplay, stacks of pieces usually won't get very tall in most games, but we can't really guarantee that. So if we try to cover everything that's theoretically possible in our tensor-based state-representation, we'd probably end up with thousands of channels -- the vast majority of which (think 95-99%) would be all-zeros during "normal" play.
So it seems sensible to go for some sort of representation where we only include information from a small number of levels of stacks of pieces in our state representation, but in theory we might occasionally miss out on some information then.
So it seems sensible to go for some sort of representation where we only include information from a small number of levels of stacks of pieces in our state representation, but in theory we might occasionally miss out on some information then.