Going over the game from move 23 onwards White appears to have lost the thread of what was happening and had a crisis of confidence. (I've been there, worn the t-shirt etc...)

After every move it seems like you are staring a new position, nothing gels.

In that mode a mistake is just waiting happen. If she had kept the Bishop on the a2-g8 diagonal then as I've shown the 35...f2 idea gets mated.

Very risky whenever Black pushes both the g&h pawns after O-O since the K becomes exposed.

White failed to exploit that vulnerability in overlooking 19.f6!

At move 19 White should have played the pawn from f5 to f6

That gives White a winning game!

Thanks for the comment.

Here - White to play.

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It looks like a 6 and two 3's position, it does not matter which order you play the moves in, my 30 fxg3 or your 30 Qh6+, but it does.

I gave 30 fxg3 Qxg3 (only move) 31 Qh6+ and White is looking good.

Playing 30 Qh6+ first gives Black's Queen other moves.

from the above diagram.

30. Qh6+ Nh7 31.fxg3 ....

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31...Qxg3 would transpose back into the 30.fxg3 line but instead of taking back on g3 Black has 31...Qg5 31..Qf6 31...Qe7 all too messy to look at and more importantly write about.

You see like all good kibitzers the first trait you must have is laziness. (the others being a thick skin, a spell checker, and a well thumbed book of chess quotations. The only chess skill you need is a quick eye for the basic two move trick and a minor ability to judge when a player is better.)

Suggesting 30 fxg3 leaves Black only one move 30...Qxg3. thus only one variation to look at and one can jump out with, as I did, "White is looking good".

Your 30 Qh6+ Nh7 31. fxg3

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Leaves the Black Queen other moves which means other variations to look at and tidy up. (remember laziness is the key.)

Now maybe 31...Qg5 31..Qf6 or 31...Qe7 can all be met with cute White wins, though 31...Qg5 looks just too unclear to call. (another kibitzer skill I will pass on. if it looks to tough to call then say nothing. If you guess and guess wrong some engineer with his toy computer will gleefully slaughter you.)

But why go that way looking at all the other Queen moves when there is a single path I can go with (I cannot emphasis enough how important skilful laziness is to a kibitzer. ) and since no engineer has appeared saying White is not better after my line then I'm OK.

Thanks again for reading my post, you seem like a good diligent type of fellow, but you may have to drop the diligent bit and concentrate more on laziness. In the above example you could be asked to clear up 31...Qg5 31..Qf6 or 31...Qe7 and that sounds like far too much hard work.

Is it worth it?

14...Bxe3 15.fxe3 Qxe3+ 16.Bf2 Qg5 17.g3

White gets compensation (imo) in spite of the pawn minus.

(semi open f-file, the Bishop pair, and with Black's King suffering from some exposure it could spell trouble.)

But maybe I'm missing something.

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but didn't see the blow 38..Bxg3+!!

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39.Kxg3 (forced) and now the Knight enters with tempo:

39..Ne4+

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And now mate in 3 or 2 depending on where the king goes.