table.insert(dt_buttons, nums[index]);

        table.remove(nums, index);

    end;

    ---game init

    pl.where = intro;

    ---debug

    --pl.where = "dyp_obelisk_puzzle";

    --language_known = true;

    --put("item_toolbox", pl);

    --put("item_electric_lamp", pl);

    --put("item_dynamo", pl);

    --put("item_toolbox", pl);