Manual  Rules Update.
Add Combat Session on page 07.

Actual combat attack/defense:

• To attack, roll the two 6-sided dice (d6) and add them to the attack points of the weapon used.
• If the result is equal to or greater than the opponent’s defense points, you are correct.
• The opponent retreats, on his player card the amount of life corresponding to the number of damage done by the attacker’s weapon used.
• The opponent’s counterattack is performed only on his turn.