Am I missing something?

It was unrated game so it was chance to play more agressive and relaxed. White made some strange moves in oppening and eventualy resigned.

At first look white is doomed, but after 21.Kc1 Rc8+ 22.Bc4 white is equal if not in advantage. Am I missing something?

22...Rxc4 23.Qxc4 Qxg5.

I personally think 21...Qc8+ is better

And white is better...

wrong. black is up.

That is not helpful.  Say WHY black or white might be up and what you might do to continue.  My rating is so woeful, I dare not give advice.

Here's why Black is better: White must defend against both Rc8 (wins the Queen) and Qxe3+ (after which White will have serious and possibly indefensible king safety problems) on the next move. I think that's the reason.

There will be a few threats to take care of, e.g. Rc8, and Qxe3. 24.Qd2 will not work, as 24...Rc8+ 25.Ke2 (forced or mate) 25...Rc2+. If 24.Rd3 Qxg2, and black can pick up the rook on d3 after that, and black wins easily, with 2 connected passed pawns. If 24.Rd5, 24...Qxe3+ 25.Kd1 25...Be6, again, winning.

 What are you talking about?? 25.Ke2? How can king jump on e2?? Qxe3 - teleport??

24.Rc8, now I am lost. I have no idea what you are talking about.

21.Kc1 Qc8+ 22.Bc4 Re4.

But what if 21.Kc1 Qc8+ 22.Kd2...

 What about 22...Qc2+ 23.Ke1 Re4, intending 24.Qg3 Rae8, and if 24.Qxf5?? then Rxe3+; if 24.Qf3 then I think 24...Bg4!? works, but I'm not sure it's necessary.

No, 21.Kc1 Qc8+ 22.Kd2 Qc5! is the correct move.

How about 21.Kc1 Qc8+ 22.Kd2 Qc2+ 23.Ke1 Re4 24.Bd3?!

As I said, the correct move is 22...Qc5!
But, answering your question, 24...Qxd1+ Kxd1 25.Rxf4 exf4 26.Bxd3

I like that, and I like 22....Qc5. Tnx to all of you.

Chessmaster says:

21.Kc1 Qc8+ 22.Qc4 Qxc4 23.Bxc4 Rac8 24.b3 b5