Two questions:

1. Biggest mistake White made till move 60? (My take: 28 instead of d6)
2. At which point White's chances to win where below 40%? (My take: from move 60)

Is there a reasonable alternative to ?

After it looks like something is wrong already, with all but one of white's stones on the 17th line.

Seems like it doesn't have good potential to make life locally, so maybe it's also a mistake?
is really jarring though. It feels like abandoning the fight. D7 feels mandatory after I like D7 better than D6 because I don't see a second eye anyway, but it widens the position a little with a simple shape.
After it seems like it's time to panic.

In the game I thought about it more than a minute. It gives Black a wall and sente, but I still did it, because with that I got the upper side settled and Black couldn't make a shimari there anymore. I think it's ok.

looks bad, unless possibly the intention is to cut and fight when B presses. Certainly the result to is unacceptable for W, too low and over-concentrated. If you want to play first in that corner, maybe E16? Then if B plays the joseki starting with D17-E17, the W stone at K17 ends up on a good spot.

As mitsun says, the result is not good for White. A loss of about 1/2 stone, I think. Also, his suggestion of the high approach at E-16 is usual here.

In the bottom left, better to approach at C-05, making miai of C-03 and C-08.

_________________
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

Everything with love. Stay safe.

I also agree is first questionable move, after white is not only very low, but also all on the same side. Maybe E16? I'm not sure.
White chose the wrong joseki in bottom left I think. How about D5 looking to settle in corner?
is certainly a wrong move, just logically disconnected from . After that it's all down-hill, especially after . Running back to top equals surrender. White's only chance to win then is to fight in left. Die bigger or live and reduce black territory. It's not the best the fight but white's behind anyway.
is only helping reinforcing black wall in the center, You can try G12 and aim for black's weakness on the top wall.

There were a number of problem moves in the bottom left, resulting in a running group while Black mounts a good attack. at H-05 just invites trouble. Also, at K-11 is worth considering, offering a few stones in the corner for a fight in the center.

_________________
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

Everything with love. Stay safe.

Yes, this is also good.

Amazing. Now that you suggested it I almost feel humiliated for not seeing this obvious superior move (to what I played)^^.

@all: At what point would you have seen no realistic chance to win for White? (Maybe not where you resign, but where you think "Cr..., this will be a long afternoon.)

Why did you play 6? doesn't this violate the 'Pippen fuseki' idea of splitting the side and then leaving that stone to be treated lightly? Shouldn't 6 have been a play against the lower left or something?

_________________
Dave Sigaty
"Short-lived are both the praiser and the praised, and rememberer and the remembered..."
- Marcus Aurelius; Meditations, VIII 21

I agree that 8 feels wrong, but it is hard to say that it is really bad - maybe half a point as Bill says.

Move 28? Well, we are all allowed a misclick now and then...

But it is 62 that really disturbs me. You are picking a fight in the shadow of his wall. I would have played P6.

_________________
Help make L19 more organized. Make an index: https://lifein19x19.com/viewtopic.php?f=14&t=5207

Sorry. Half a stone = half a handicap stone = 7 points or so.

_________________
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

Everything with love. Stay safe.

The sequence to is really bad. The two W stones at K17 and O17 have probably lost half a stone of combined efficiency, as Bill suggests. I am pretty sure that if both players were professional, the game would already be decided.

Players aren't professionals.

I wonder about W12, I probably would push a bit longer (gaining points in the corner because disabling Black moves there) instead of jumping ahead with W12 and use the stone already in place at 10-3 to finally "get ahead".

Click Here To Show Diagram Code

[go]$$W Sth. like this (similar to game but no ''a'')
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . a 1 3 5 7 . 9 O . . . . . . . . . |
$$ | . . . , 2 4 6 8 . , . . . . . , . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |[/go]

Getting that wall in sente feels a lot more valuable than the territory white is taking. Black just needs to make a nice extension down the left side and the game feels hard for white.

My opponents aren't pros, so it's OK if I make a few 10 kyu moves. Right?



More like this.

Click Here To Show Diagram Code

[go]$$W After W5 the corner is alive
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . 1 3 5 . . . O . . . O . . . . . |
$$ | . . . , 2 4 6 . . , . . . . . X . . . |
$$ | . . X . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . X . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |[/go]

is a wedge on the left side.

_________________
The Adkins Principle:
At some point, doesn't thinking have to go on?
— Winona Adkins

Visualize whirled peas.

Everything with love. Stay safe.

My point: In the given circumstances W12 appears to be a mistake in itself, in other words a move not worthy of an aspiring player such as pippen, regardless of other mistakes earlier and later.

The sequence 30-32-34 feels pretty optimistic. If black plays 35 at G7, white seems likely to be swallowed whole.

_________________
Main Entry: zing·er Pronunciation: \ˈziŋ-ər\
1 : something causing or meant to cause interest, surprise, or shock
2 : a pointed witty remark or retort