The point is to get a trigger for the rule to run, hence my suggestion!
Inside this rule you can check each possible situation and do the needed actions.
when
Item V1 changed or Item V2 changed
then
if(V1.state == OPEN)
{ if (V2.state == OPEN)
{
//do whatever is needed with V1 and V2 OPEN
} else {
//do whatever is needed with V1 OPEN and V2 CLOSED
}
} else {
if (V2.state == OPEN)
{
//do whatever is needed with V1 CLOSED and V2 OPEN
} else {
//do whatever is needed with V1 and V2 CLOSED
}
}
end