Whyyyyyy. (blunder on the edge of victory)

So I'm about to win an online match.  Far from ideal play on my side, but I persevered, and wound up with an overwhelming material advantage and an overwhelming attack.  To be precise, I was one move from checkmate with a pinned-down enemy king and nothing standing in the way of my win but a series of spite checks I had already calculated I could evade.  I'm just impatiently waiting for my opponent to get the checks done with (or hey, resign already) so I can stick a fork in it.

However -- there was exactly one spot on the board where I could move my king on the first spite check, where it could be forked with the checkmating piece on the second.  Guess what I had completely forgotten about by the time my opponent made his move, and guess where I retreated my king?  Argh!  I have attention/safety check issues at the best of times, but this ...  owie.

Game's not even over yet as material is still even, or me ahead, depending how I play it from here.  At the rate I play it could drag out for weeks.

Anyone want to tell some stories of their memorable blunders to keep me entertained while I nurse my wounds?

the other day i set up a sweet windmill attack in which i took my opponents bishop and rook for free, or i would have taken his rook for free if i had been able to drag my rook all the way to his rook without letting go first. ive never been so pissed off about a misclick

Yesterday, I had two things happen:

one, forced a queen exchange, but mis-clicked and did not retake -_-

two, found the winning endgame plan, but due to me not connecting (I was playing on the phone when both of these happened) I lost too much time and could not convert the winning endgame (Q+K vs. P+K) before timing out.

I was losing, and had the chance to get a huge advantage, but missed 31. Ne7, forking the King and Queen...

Nate wins the Misery Loves Company award so far.  Mis-clicks you at least have the consolation it's not the move you actually meant to make.

Nate, feel free to share my cup of "what did I just doooooo" with me.

I really do feel like an idiot after this game. I was calculating numerous ways to end clearly up an entire piece after my Nxg5 and white's hxg5.

12. ... Qxd5 is out of the question?

Thinking that a Pawn was pinned because the Queen behind it was unprotected, I moved a Knight to a square where I thought it couldn't be captured. Just after I hit "Submit", I realized the Queen WAS protected and of course, too late to take back the move!

I was a kid , one of my first serious club tournament games.I wanted to prove my worth but.........

My opponent usually played Reti(1.Nf3) and I was well prepared to meet it with a Queen's Indian/Owen defense set-up(I was preparing that a whole afternoon).

So here it is , the game begins and I am very confident about myself. My opponent starts with 1.g3 but I am not watching , I respond 1...b6 as planned(on 1.Nf3) he continues with 2.Bg2  and I touch my Bc8 to play it when I realise that he hasn't played 1.Nf3 and that creates a "small " difference.With terror I realise that the damn bishop is already on my hand and neither 2...Bb7 or 2...Ba6 can save me.The bishop stays on the air for some seconds(which seemed like eternity) and lands on b7.That was what I had prepared.After 3.Bxb7 I simply resigned .My teacher was just behind me , I looked at him  with tears in my eyes  and said:

"I was prepared for 1.Nf3"

    I remember him trying to hold his laugh before burst in a laugh so loud it really made me wonder.What was so funny?

Now I know.

It's sometimes irritating to me when my opponent blunders. For example, I recently played a game against a much weaker opponent who spoiled my fun by blundering mate.

Does anyone see what I had in mind?

Why me? Why me?

Ironic this thread has been dug up again; these days I'm just plain losing.  From blunders and otherwise.

On f3 you wanted Bxg3 but even if he recaptures the bishop I don't see a mate.  It's a good move / attack though.

This. Me playing white. http://www.chess.com/echess/game.html?id=50456473

This is what I came up with during the game as best play for both sides. I may be missing something somewhere, but I haven't looked much since my opponent blundered mate.