I think playing as Poland is qiute challenging.I always play with expert difficulty level and I managed once playing as Poland to create an empire stretching from finland,novgorod,smolensk,muscovy,pereyaslavl,chernigov,kiev,crimea,khazar,ryazan,volga-bu
lgaria,georgia,moldavia,livonia,lithuania,volhynia,prussia,silesia,wallachia,pomerania and finally poland in 60 years (1087 - 1147) and started a major conflict with the byzantines....