It's very easy in the sense that flapping your arms and jumping over Everest is easy. All you need to do is flap your arms fast enough.
Your argument is like saying since it is possible to jump a foot in the air, it is possible to jump over the Moon.
Exactly, with enough force, you can "jump" into orbit. The method of solving chess is very simple, and the simplicity makes it easy to state firmly that chess wont be solved. That other guy was asking for a mathematics paper to prove this.
No. You use the words "easy" and "possible" in ways that are incompatible with their meanings.
It is not easy to fly over Everest by flapping your arms. Indeed, the stronger statement that it is not possible to do so is also true. And the same applies to solving chess using conventional computing.
Those who are familiar with solving difficult combinatorial problems understand that the highly arbitrary nature of the rules of chess mean a small proof is utterly infeasible.