Are you the first to find the tesuji?

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Gomoto
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Are you the first to find the tesuji?

Post by Gomoto »

White to play. There is only one good move for white. Are you the first to find the tesuji?
[Edit: actually there are two good moves for white, my bad ;-)]
Click Here To Show Diagram Code
[go]$$c
$$ ---------------------------------------
$$ | . . . . . . . . . O X X O . O . O X . |
$$ | . X O O . . . . O . O X O O . O O X . |
$$ | X . X O . . O . . . O X X O . O X . . |
$$ | . X X O . O . . . , . . X O O X X . . |
$$ | . . . . . . . . O O O . X O . . . . . |
$$ | . . X . . . X . . . X . X O . X . . . |
$$ | . X . . . . . . X . . X . X X . X . . |
$$ | . . . . . . . . . . . . X O . O X . . |
$$ | . O . . . . . . . . . . X O O . . X . |
$$ | . . . , . . . . . , . X . . . O . X . |
$$ | . . O . . . . . . . . . . . O O X . . |
$$ | . . . . . . . . . . . . . . . X O O . |
$$ | . . . . . . . . . . . . . . . . X O . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . X . . . . . , . . . |
$$ | . . O . . X . X . . . . X . . O . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Last edited by Gomoto on Mon Mar 19, 2018 2:30 pm, edited 2 times in total.
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Gomoto
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Re: Are you the first to find the tesuji?

Post by Gomoto »

Solution
The only move is the tesuji at P6
Last edited by Gomoto on Sun Mar 18, 2018 9:10 am, edited 1 time in total.
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Elom
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Re: Are you the first to find the tesuji?

Post by Elom »

P6?
On Go proverbs:
"A fine Gotation is a diamond in the hand of a dan of wit and a pebble in the hand of a kyu" —Joseph Raux misquoted.
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tj86430
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Re: Are you the first to find the tesuji?

Post by tj86430 »

I have no clue, my instinct says O7
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Caesura
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Re: Are you the first to find the tesuji?

Post by Caesura »

how about q7? If black extends then o7
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Knotwilg
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Re: Are you the first to find the tesuji?

Post by Knotwilg »

p7-q7-p6
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mitsun
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Re: Are you the first to find the tesuji?

Post by mitsun »

P6 captures the cutting stone. P6-Q7-R6 leads to a squeeze and capture.
(P7-Q7-P6-R6 does not work for W).
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drmwc
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Re: Are you the first to find the tesuji?

Post by drmwc »

I have been to the pub, so take this with a pinch of salt:
Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . O X X O . O . O X . |
$$ | . X O O . . . . O . O X O O . O O X . |
$$ | X . X O . . O . . . O X X O . O X . . |
$$ | . X X O . O . . . , . . X O O X X . . |
$$ | . . . . . . . . O O O . X O . . . . . |
$$ | . . X . . . X . . . X . X O . X . . . |
$$ | . X . . . . . . X . . X . X X . X . . |
$$ | . . . . . . . . . . . . X O . O X . . |
$$ | . O . . . . . . . . . . X O O . . X . |
$$ | . . . , . . . . . , . X . . . O . X . |
$$ | . . O . . . . . . . . . . . O O X . . |
$$ | . . . . . . . . . . . . . . 2 X O O . |
$$ | . . . . . . . . . . . . . 3 . 1 X O . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . X . . . . . , . . . |
$$ | . . O . . X . X . . . . X . . O . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Seems to be a ladder.
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Gomoto
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Re: Are you the first to find the tesuji?

Post by Gomoto »

Thanks for participating, the solution and only move is the tesuji at
P6
Continuation:
Click Here To Show Diagram Code
[go]$$W
$$ ---------------------------------------
$$ | . . . . . . . . . O X X O . O . O X . |
$$ | . X O O . . . . O . O X O O . O O X . |
$$ | X . X O . . O . . . O X X O . O X . . |
$$ | . X X O . O . . . , . . X O O X X . . |
$$ | . . . . . . . . O O O . X O . . . . . |
$$ | . . X . . . X . . . X . X O . X . . . |
$$ | . X . . . . . . X . . X . X X . X . . |
$$ | . . . . . . . . . . . . X O . O X . . |
$$ | . O . . . . . . . . . . X O O . . X . |
$$ | . . . , . . . . . , . X . . . O . X . |
$$ | . . O . . . . . . . . . . . O O X . . |
$$ | . . . . . . . . . . . . . . . X O O . |
$$ | . . . . . . . . . . . . . 6 7 . X O . |
$$ | . . O . . . . . . . . . . . 1 . 5 . . |
$$ | . . . . . . . . . . . . . . . 4 . . . |
$$ | . . . O . . . . . X . . . . . 2 3 . . |
$$ | . . O . . X . X . . . . X . 8 O 9 . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Last edited by Gomoto on Sun Mar 18, 2018 10:29 am, edited 1 time in total.
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Ian Butler
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Re: Are you the first to find the tesuji?

Post by Ian Butler »

Gomoto wrote:Thanks for participating, the solution and only move is the tesuji at
P6
.
Could you show us why? I'm still at the 17-18 kyu level so I'd love to see the sequence following it.

My instinct was
to simply turn (and atari) at P8. But I guess P6 also protects the white stone in the lower corner?
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Gomoto
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Re: Are you the first to find the tesuji?

Post by Gomoto »

Thanks for your question, see now continuation add the post above.
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Kirby
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Re: Are you the first to find the tesuji?

Post by Kirby »

Doesn't drmwc's variation work, too?
be immersed
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Gomoto
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Re: Are you the first to find the tesuji?

Post by Gomoto »

answer @kirby: second best variation, but I prefer the P6 tesuji for white instead of R6
Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . O X X O . O . O X . |
$$ | . X O O . . . . O . O X O O . O O X . |
$$ | X . X O . . O . . . O X X O . O X . . |
$$ | . X X O . O . . . , . . X O O X X . . |
$$ | . . . . . . . . O O O . X O . . . . . |
$$ | . . X . . . X . . . X . X O . X . . . |
$$ | . X . . . . . . X . . X . X X . X . . |
$$ | . . . . . . . . . . . . X O . O X . . |
$$ | . O . . . . . . . . . . X O O . . X . |
$$ | . . . , . . . . . , . X . . . O . X . |
$$ | . . O . . . . . . . . . W . O O X . . |
$$ | . . . . . . . . . . . . . . 5 X O O . |
$$ | . . . . . . . . . . . B . 3 2 8 X O . |
$$ | . . O . . . . . . . . . . 9 4 . 1 . . |
$$ | . . . . . . . . . . . . . . 0 . . . . |
$$ | . . . O . . . . . X . . . . 6 7 . . . |
$$ | . . O . . X . X . . . . X . . O . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
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Kirby
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Re: Are you the first to find the tesuji?

Post by Kirby »

@Gomoto:
i was talking about q7, not r6
be immersed
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Gomoto
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Re: Are you the first to find the tesuji?

Post by Gomoto »

Sorry Kirby, but that way we checked an additional variation ;-)
good for black
Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . . . O X X O . O . O X . |
$$ | . X O O . . . . O . O X O O . O O X . |
$$ | X . X O . . O . . . O X X O . O X . . |
$$ | . X X O . O . . . , . . X O O X X . . |
$$ | . . . . . . . . O O O . X O . . . . . |
$$ | . . X . . . X . . . X . X O . X . . . |
$$ | . X . . . . . . X . . X . X X . X . . |
$$ | . . . . . . . . . . . . X O . O X . . |
$$ | . O . . . . . . . . . . X O O . . X . |
$$ | . . . , . . . . . , . X . . . O . X . |
$$ | . . O . . . . . . . . . . . O O X . . |
$$ | . . . . . . . . . . . . . . . X O O . |
$$ | . . . . . . . . . . . . . . . 1 X O . |
$$ | . . O . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . O . . . . . X . . . . . 2 . . . |
$$ | . . O . . X . X . . . . X . . O . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
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