Get the widest wood chisel you can, usually like a 2″ one are the biggest in most stores. Use that to pop them apart. Having another chisel that’s thicker (like a brick set, or any old cold chisel) may help too, once you start driving in the wood chisel. The wood chisel can then be used to get the adhesive off the blocks. It also won’t be any good for wood again, so don’t buy a nice one, lol.