Best objects synchronizing in physical-based game

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Hello,
I am new to the Photon networking and the first problem I noticed is, that physical based game is very difficult to sync between devices. My game is 1v1 2D, with castle, destroyable like "castles" in Angry Birds, for each player. So, I want to ask, what is the best solution, to sync, like 150 stone blocks, which will be destroyed through the game? Thanks for replies :smile: