Check out this #chess game: oscatrin vs Iwillbeforgotten - http://www.chess.com/livechess/game?id=2025905355
my worst/good/frustrating/dumbest game I didn't visualize Rxg2 correctly. had losing mindset.

You'll need to get the PGN of that game through the "Download" option - see https://support.chess.com/customer/portal/articles/1444901 in the FAQ
Then you need to "Insert chess game or diagram" - that's the first icon in the menu above the Edit box. Choose "Load PGN" and paste the PGN into there. Make any comments that you wish, and voilà!
Check out this #chess game: oscatrin vs Iwillbeforgotten - http://www.chess.com/livechess/game?id=2025905355