Minecraft: PlayStation Vita Edition

These are 27 cells in the inventory or chest, 64 blocks each. You can gradually carry cobblestones and put them in the chest, when you have collected 27 cells of 64 pieces, take them from the chest to your personal inventory, close the chest. Open the chest again and put all the cobblestones back, the trophy will be obtained. It doesn’t matter whether you mined cobblestones alone or with a partner.