Is that "GERB/BSP" tie in your city-map a tie in votes or a rough tie in percentages ?
Because the fact that GERB an BSP are tied in so many cities would be kinda fishy, considering Austria for example has 2400 cities and there are hardly any ties, not even to mention ties between the same parties.
It's an exact tie. But what do you mean under many ties? There is only one tie, in Pordim in the central north, marked in a light purple color.
By the way, you can't really compare Bulgarian municipalities with Austrian ones - they tend to be much bigger and include multiple settlements (though usually only one town), so one can't really call them cities either. There are only 264 of them, while there are about five thousand settlements.
Sry, my fault.
I thought the ">40% GERB-shade" is the "tie", but it's the other one.