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Vapnartak York Feb 2018- format options?

Wed Oct 18, 2017 8:26 am by Cyrus The Adequate

Hi everyone

I was pondering the options for the York competition and wondered …

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There will be a 28mm Impetus Competition at Derby World Wargames on 7th …

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Impetus at Derby?

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Anyone interested ? 7th & 8th October at a new venue - Bruntingthorpe …

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Canberra July 15th-16th

Basic Impetus 2
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BI2 tournament - 25 March 2017

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Would anyone be interested in a 28mm Basic Impetus 2 tournament on 25 March …

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28mm Impetus Competition York Sunday 5th February 2017

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The traditional start to the Impetus Competition calendar in the UK is York in …

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Next One: Large Unit losses.

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Next One: Large Unit losses.

Post by Granicus Gaugamela on Thu Jun 15, 2017 12:09 pm

OK, I guess I'm on a roll so I may as well see who else I can fire up...

Large Units.

King of the battlefield in tournaments and games in general.

Taking my beloved Swiss pike as an example, they have VBU 6 in front, VBU 5 second rank (and they oblique up roads as they skip and dance across the battlefield to create merry hell for my opponent).

Their VBU progression for calculating attack dice and, more importantly critical number, when compared to a VBU 8 CP is as follows:

Loss....Large......CP
Start...6.(+5).....8
1........6.(+4).....7
2........6.(+3).....6
3........6.(+2).....5
4........6.(+1).....4
5........6............3
6........5............2
7........4 etc.......1 dead


So the loss of VBU swings very rapidly from the VBU8 CP to the Large unit at the third loss which also reduces the start point of crit number and thus losses from 6 to 5.

The effect of this critical number start point (and it doesn't take more than a few melees to realise critical number is the crux of Impetus) is massive.

When both sides are at VBU 6 or above the critical number for the probable single hit taken remains at 6, a 1 in 6 chance to suffer a permanent loss.

As soon as the 3rd loss is taken the single probable hit means the Large unit is still rolling a 6 to fail whereas the CP are now taking a loss on a 5,6.

In statistical terms (a dry mathematical exercise but one that is at the heart of the game) that means the CP have a 100% greater chance of suffering a permanent loss.

And from there it deteriorates rapidly, the double whammy of losing VBU attack dice and thus generally scoring less hits combined with the ever increasing probability of taking more and more losses when rolling against lower critical numbers means that the CP are likely to be destroyed well before the Large Unit even loses its back rank. Certainly barring some very unlikely results the CP will lose their combat effectiveness well before the large unit does.

So, the proposition I am advancing is this:

For large units losses must be apportioned so that the VBU or the front and rear ranks is as close to each other as possible.

This would mean that the Swiss v CP comparison above becomes:

Loss....Large......CP
Start...6.(+5).....8
1........5.(+5).....7
2........5.(+4).....6
3........4.(+4).....5
4........4.(+3).....4
5........3.(+3).....3
6........3.(+2).....2
7........2.(+2).....1
8........2.(+1)... dead

Which seems a far more reasonable proposition.

Equally it would mean for the more unusual large units that have a strong melee front unit and slightly weaker missile rear unit (say a 5/3 combination) the melee troops would take the first two losses until the large unit becomes a 3/3 after which the rear unit starts taking losses in turn. This reflects the difficulty that missile troops have in filling the melee ranks in the large unit.

Bit of a long post but one I think worth considering.


Granicus Gaugamela
VBU 4
VBU 4

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