@is_anyhorse_selected

Type:Bit
If contains 0 no horse is checked in the race queried in that moment, if contains 1 at least one horse is checked.

Example:

<place condition="(@id_favourite=@id_horse) and (@is_anyhorse_selected=1)"
price="@best_back_price" size="2" />
If any horse is checked in a race, places a bet on the favourite.