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 ]
$$c
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$$ | . . . . . . . . . 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 . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
[go]$$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 . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Re: Are you the first to find the tesuji?
Posted: Sun Mar 18, 2018 9:16 am
by Ian Butler
Gomoto wrote:Thanks for participating, the solution and only move is the tesuji at
P6
.
Could you show us why? I'm still at the 17-18 kyu level so I'd love to see the sequence following it.
My instinct was
to simply turn (and atari) at P8. But I guess P6 also protects the white stone in the lower corner?
Re: Are you the first to find the tesuji?
Posted: Sun Mar 18, 2018 10:30 am
by Gomoto
Thanks for your question, see now continuation add the post above.
Re: Are you the first to find the tesuji?
Posted: Sun Mar 18, 2018 11:57 am
by Kirby
Doesn't drmwc's variation work, too?
Re: Are you the first to find the tesuji?
Posted: Sun Mar 18, 2018 2:21 pm
by Gomoto
answer @kirby: second best variation, but I prefer the P6 tesuji for white instead of R6
$$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 . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------
[go]$$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 . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]
Re: Are you the first to find the tesuji?
Posted: Sun Mar 18, 2018 2:26 pm
by Kirby
@Gomoto:
i was talking about q7, not r6
Re: Are you the first to find the tesuji?
Posted: Sun Mar 18, 2018 2:39 pm
by Gomoto
Sorry Kirby, but that way we checked an additional variation
good for black
$$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 . . . |
$$ | . . . X . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------