Black is still winning up until Re8. That's the blunder that leads to a draw. He lost after Re6. Sheesh, he blunders a lot. Check out this cool draw...
The game SHOULD go...
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9.Qg8 doesn't accomplish anything. 9.Qc8! (pinning Black's rook) followed by 10.Qxe6 is a simpler win because now Black has zero counterplay.
3...Rd1 wins for Black easily. If the White king advances, he is mated. If the rook pawn advances, it is lost to the skewer. If the knight pawn advances, both pawns are goobled up by Black's king. White is in zugzwang. He can do nothing but abandon his pawns.
Please note that this is a puzzle for beginners like myself. It has little to no challenge at all for skilled players. Black makes many very poor moves. Also, as I am a beginner, there are probably moves that could have been made better. Feel free to critisize as long as it's constructive.