Rows and Columns are measured from top to bottom and left to right respectively...
In the 15th square on the 6th row, Ganondorf can easily get an upgrade for his weapon. Upgrading it means he is more likely to get leveled up weapons from now on. The entry level attack after the upgrade is 150 and can potentially reach above 200 in rare occasions. On top of that you get 2 Skulltulas that will get you 2 steps closer to unlocking the "Evil Power" Rewards Map. Oh and let's not forget the Heart Container and Piece of Heart this maps offers.
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