I wrote that the troops of the left-hand hero should be divided into 7 stacks of 2, and the remaining troops should be left for a similar battle. You can slightly strengthen this: take all the troops from the left-hand hero and make 5 stacks of 2, and place 2 stacks with many units in the corners. This tactic can be further enhanced by taking luck and magic resistance into account.
I wrote that the troops of the left-hand hero should be divided into 7 stacks of 2, and the remaining troops should be left for a similar battle. You can slightly strengthen this: take all the troops from the left-hand hero and make 5 stacks of 2, and place 2 stacks with many units in the corners. This tactic can be further enhanced by taking luck and magic resistance into account.