Schengen visa
Then its "tourist" visa so yes you can.
By the way, China and Pakistan locates in totally different areas.
They're still two different countries as are Poland and Czech republic...maybe I should have said China and India - both nextdoor to each other..No?
There _is_ such thing as national long stay visa.
This is why I asked if it was a Schegen visa which is a short stay tourist visa, the OP stated they had a "Czech visa, if that had been the case then the visa is specifically for that country.
Can I enter first to Poland having a Czech visa?
Once its Schengen visa
Schengen visa
You should have been clear in your first post and you would have received the correct information.