a skill-3 theatre commander would reduce the penalty from -19% to -16%. Stacking penalty = -100% x ( 1 - ( 0.9 to_the_power_of ( #_of_attacking_units - stacking_limit ))) + theatre_commander's_skillĮ.g.: attacking with six 2-width units (such as INFx2/ARTx2) in a single-province attack (frontage=5x(1+1)=10) gives you a stacking limit of four Divisions ((3x1)+1=4), hence an over-stack of two Divisions and a stacking penalty of -19% less the theatre commander's skill.
Note that four of them will be "in reserve", since there is only room (on a frontage of 25) for nine of them to attack at once. Stacking limit = ( 3 x number_of_attack_vectors ) + 1Į.g.: attacking from four provinces into one allows (3x4)+1=13 Divisions in the attacking stack, without any stacking penalty. Units in a DEFENDING stack are always considered "committed to the battle", hence they all will count towards the stacking penalty.įrontage = 5 x ( #_of_attack_vectors + 1 )Į.g.: an attack from four provinces has a frontage of 5x(4+1)=25.Īllowed units in a combat = integer ( frontage / unit width ) + 1Į.g.: a frontage of 25 (a four-province attack) with 3-width Divisions such as INFx3/ARTx1 allows room for integer(25/3)+1=9 Divisions to participate. Units committed to the attack still count towards the stacking penalty, even if they are "in reserve" because there are too many of them to all fight at once on the given frontage. allow a higher stacking limit and give a lower stacking penalty. e.g.: attacking from several provinces into one enemy province, or defending a province against an attack from enemies in several provinces. Stacking penalties depend on the number of Divisions (not Regiments) involved in the battle, and on the number of directions of attack (attack vectors). The following is extracted from a forum post by blu emu) Combat has an "attacker" and a "defender" based on whichever side initiated combat.įor stacking penalties ships and airwings, see naval combat and air combat. Each round has five phases: firing, damage, shattering, push back, and reorganization.