I meant the 3D pieces for other games. Flat pictographic boards feel generally easier than any alternative.
Ah, OK. Indeed, it could be that statue-like pieces in 3D are not optimal at all. But even a flat pictographic board lying flat between the players would suffer from some similar problems. I guess the traditional equipment suffers from the boundary condition that it must treat the players equivalently, just as traditional Shogi equipment suffers from the fact that the pieces have to be usable for both players, and must be able to promote.
Ah, OK. Indeed, it could be that statue-like pieces in 3D are not optimal at all. But even a flat pictographic board lying flat between the players would suffer from some similar problems. I guess the traditional equipment suffers from the boundary condition that it must treat the players equivalently, just as traditional Shogi equipment suffers from the fact that the pieces have to be usable for both players, and must be able to promote.