Fill a 9×9 grid so that each column, each row, and each of the nine 3×3 grids contains all of the digits from 1 to 9.

Indiana Jones has stolen two solid gold bars from a treasure. But now, the village people are behind him. While running away from them, he comes across a bridge formed by a single rope. Now he knows that he can cross the bridge on that rope. But there is a signboard which reads that the rope can carry a maximum weight of 130 pounds only.

Now, the gold bar weighs 20 pounds each and he weighs 100 pounds. How will he cross the bridge now given that he can’t leave the gold bar behind and he doesn’t have enough time to return and take them one by one?