How to beat IM penguingm?

i always observing IM penguingm1 games . He playing really well then i want know how to beat him

First try to beat lesser players.

ok then ?

then go play against him in an aggressive and attacking game and checkmate him...then wake up and tell us how you did it

but he did not accept challenges

"i always observing IM penguingm1 games . He playing really well then i want know how to beat him".

either play better than him (which you won't) or get lucky.
to play him either join some simul he might do or join a tourney right after he joined and get lucky to be paired with him.

Try to catch him at 2 am and go for a scholar's mate. It might just work ;)

Bk22+
after the forced Ke0 you can fork his archbishop with your queen.

If you're white, try 1. d7+
That will confuse him and buy you time.