Sente for what cut? f11? That just dies.
You played nicely in the lower left exploiting white's weaknesses, but your
and
were bad moves, 56 was particularly bad and aji keshi as it strengthened h12 considerably. The correct time to play 1 point sente moves like this is precisely before you would be sad if your opponent played the reverse sente there, but that is not the case for a long time as there are plenty of much bigger moves left. In fact j13 has made your d10 a much worse move, without it seems (I've not done bulletproof reading) black has the following tesuji at g12:
- Click Here To Show Diagram Code
[go]$$Bcm162 Tesuji?
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | O . O O X X . . X O O O . . . O O O . |
$$ | . . O X . O X X X X X X O O . X O X . |
$$ | O O X X . . X O X O O O X . . X X . . |
$$ | . X . . . . . . . . . X X . . . . . . |
$$ | . . X . . . . . X X . . . . . X X . . |
$$ | . . . . . . . . . O O . O . O O X . . |
$$ | . . . . . . 3 O . . . . . . O . O X . |
$$ | . . X . O . . . . . . . O X O O . X . |
$$ | . . . 1 X O . . . , . . . X O X X . . |
$$ | . . . . O . O . . . . . O O X . X . . |
$$ | . . . O . O . . . . . . O X X X . X . |
$$ | . . X X O . . O . . . X X O O O X X . |
$$ | . X . . X O X O O O O . X O . O O X . |
$$ | . . X X . X . O X X O O X O . X O O . |
$$ | . O O X . . 2 . O X X O O X X X O . . |
$$ | . X X O O X . . O X . X X . X . O . . |
$$ | . . . X X . . . O X X O X . X . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ ---------------------------------------[/go]
If white answers on the outside black has a crosscut tesuji:
- Click Here To Show Diagram Code
[go]$$Wcm165 White hane outside.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | O . O O X X . . X O O O . . . O O O . |
$$ | . . O X . O X X X X X X O O . X O X . |
$$ | O O X X . . X O X O O O X . . X X . . |
$$ | . X . . . . . . . . . X X . . . . . . |
$$ | . . X . . . . . X X . . . . . X X . . |
$$ | . . . . . . 1 2 3 O O . O . O O X . . |
$$ | . . . . . . X O . . . . . . O . O X . |
$$ | . . X . O . . . . . . . O X O O . X . |
$$ | . . . X X O . . . , . . . X O X X . . |
$$ | . . . . O . O . . . . . O O X . X . . |
$$ | . . . O . O . . . . . . O X X X . X . |
$$ | . . X X O . . O . . . X X O O O X X . |
$$ | . X . . X O X O O O O . X O . O O X . |
$$ | . . X X . X . O X X O O X O . X O O . |
$$ | . O O X . . O . O X X O O X X X O . . |
$$ | . X X O O X . . O X . X X . X . O . . |
$$ | . . . X X . . . O X X O X . X . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ ---------------------------------------[/go]
If black connects he gets a semeai he loses:
- Click Here To Show Diagram Code
[go]$$Bcm168 Connect bad.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | O . O O X X . . X O O O . . . O O O . |
$$ | . . O X . O X X X X X X O O . X O X . |
$$ | O O X X . . X O X O O O X . . X X . . |
$$ | . X . . . . . . . . . X X . . . . . . |
$$ | . . X . . . . 1 X X . . . . . X X . . |
$$ | . . . . . 4 O X O O O . O . O O X . . |
$$ | . . . 8 . 2 X O 6 . . . . . O . O X . |
$$ | . . X . O 7 3 5 . . . . O X O O . X . |
$$ | . . . X X O . . . , . . . X O X X . . |
$$ | . . . . O . O . . . . . O O X . X . . |
$$ | . . . O . O . . . . . . O X X X . X . |
$$ | . . X X O . . O . . . X X O O O X X . |
$$ | . X . . X O X O O O O . X O . O O X . |
$$ | . . X X . X . O X X O O X O . X O O . |
$$ | . O O X . . O . O X X O O X X X O . . |
$$ | . X X O O X . . O X . X X . X . O . . |
$$ | . . . X X . . . O X X O X . X . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ ---------------------------------------[/go]
But instead black plays counter atari which lets him cut off e11. Before 70 it would be nice if he can play atari at
a and white connects, but maybe white resists. In fact black might not gain as much from capturing e11 as he loses giving white 69, but it better to have this sort of aji to work with later than not.
- Click Here To Show Diagram Code
[go]$$Bcm168 Cut e11
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | O . O O X X . . X O O O . . . O O O . |
$$ | . . O X . O X X X X X X O O . X O X . |
$$ | O O X X . . X O X O O O X . . X X . . |
$$ | . X . . . . . . . . . X X . . . . . . |
$$ | . . X . . . a 2 X X . . . . . X X . . |
$$ | . . . . . 1 O X O O O . O . O O X . . |
$$ | . . . . . . X O . . . . . . O . O X . |
$$ | . . X . O 3 . . . . . . O X O O . X . |
$$ | . . . X X O . . . , . . . X O X X . . |
$$ | . . . . O . O . . . . . O O X . X . . |
$$ | . . . O . O . . . . . . O X X X . X . |
$$ | . . X X O . . O . . . X X O O O X X . |
$$ | . X . . X O X O O O O . X O . O O X . |
$$ | . . X X . X . O X X O O X O . X O O . |
$$ | . O O X . . O . O X X O O X X X O . . |
$$ | . X X O O X . . O X . X X . X . O . . |
$$ | . . . X X . . . O X X O X . X . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ ---------------------------------------[/go]
If white plays the other atari black breaks into white's centre (again maybe can atari at
a first):
- Click Here To Show Diagram Code
[go]$$Wcm165 Other white atari.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | O . O O X X . . X O O O . . . O O O . |
$$ | . . O X . O X X X X X X O O . X O X . |
$$ | O O X X . . X O X O O O X . . X X . . |
$$ | . X . . . . . . . . . X X . . . . . . |
$$ | . . X . . . . . X X . . . . . X X . . |
$$ | . . . . . . 1 2 6 O O . O . O O X . . |
$$ | . . . . . 3 X O 4 . . . . . O . O X . |
$$ | . . X . O . 5 a . . . . O X O O . X . |
$$ | . . . X X O . . . , . . . X O X X . . |
$$ | . . . . O . O . . . . . O O X . X . . |
$$ | . . . O . O . . . . . . O X X X . X . |
$$ | . . X X O . . O . . . X X O O O X X . |
$$ | . X . . X O X O O O O . X O . O O X . |
$$ | . . X X . X . O X X O O X O . X O O . |
$$ | . O O X . . O . O X X O O X X X O . . |
$$ | . X X O O X . . O X . X X . X . O . . |
$$ | . . . X X . . . O X X O X . X . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ ---------------------------------------[/go]
White could also play counter-atari but then black gets a huge picnic ko to trash white's centre:
- Click Here To Show Diagram Code
[go]$$Wcm165 Other white atari.
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | O . O O X X . . X O O O . . . O O O . |
$$ | . . O X . O X X X X X X O O . X O X . |
$$ | O O X X . . X O X O O O X . . X X . . |
$$ | . X . . . . . . . . . X X . . . . . . |
$$ | . . X . . . 8 7 X X . . . . . X X . . |
$$ | . . . . . . 1 2 5 O O . O . O O X . . |
$$ | . . . . . 3 X O 4 . . . . . O . O X . |
$$ | . . X . O . . 6 . . . . O X O O . X . |
$$ | . . . X X O . . . , . . . X O X X . . |
$$ | . . . . O . O . . . . . O O X . X . . |
$$ | . . . O . O . . . . . . O X X X . X . |
$$ | . . X X O . . O . . . X X O O O X X . |
$$ | . X . . X O X O O O O . X O . O O X . |
$$ | . . X X . X . O X X O O X O . X O O . |
$$ | . O O X . . O . O X X O O X X X O . . |
$$ | . X X O O X . . O X . X X . X . O . . |
$$ | . . . X X . . . O X X O X . X . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ ---------------------------------------[/go]
So white has to back down with something like this:
- Click Here To Show Diagram Code
[go]$$Bcm162 Submissive white
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | O . O O X X . . X O O O . . . O O O . |
$$ | . . O X . O X X X X X X O O . X O X . |
$$ | O O X X . . X O X O O O X . . X X . . |
$$ | . X . . . . . . . . . X X . . . . . . |
$$ | . . X . . . . . X X . . . . . X X . . |
$$ | . . . . . . . 7 . O O . O . O O X . . |
$$ | . . . . . 5 3 O . . . . . . O . O X . |
$$ | . . X . O 6 4 . . . . . O X O O . X . |
$$ | . . . 1 X O . . . , . . . X O X X . . |
$$ | . . . . O . O . . . . . O O X . X . . |
$$ | . . . O . O . . . . . . O X X X . X . |
$$ | . . X X O . . O . . . X X O O O X X . |
$$ | . X . . X O X O O O O . X O . O O X . |
$$ | . . X X . X . O X X O O X O . X O O . |
$$ | . O O X . . 2 . O X X O O X X X O . . |
$$ | . X X O O X . . O X . X X . X . O . . |
$$ | . . . X X . . . O X X O X . X . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ ---------------------------------------[/go]
But you played the j13 j12 exchange and now all those variations don't work anymore:
- Click Here To Show Diagram Code
[go]$$Bcm162 No longer tesuji
$$ ---------------------------------------
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | O . O O X X . . X O O O . . . O O O . |
$$ | . . O X . O X X X X X X O O . X O X . |
$$ | O O X X . . X O X O O O X . . X X . . |
$$ | . X . . . . . . . . . X X . . . . . . |
$$ | . . X . . . . . X X . . . . . X X . . |
$$ | . . . . . 8 4 5 X O O . O . O O X . . |
$$ | . . . . . 6 3 O O . . . . . O . O X . |
$$ | . . X . O . 7 . . . . . O X O O . X . |
$$ | . . . 1 X O . . . , . . . X O X X . . |
$$ | . . . . O . O . . . . . O O X . X . . |
$$ | . . . O . O . . . . . . O X X X . X . |
$$ | . . X X O . . O . . . X X O O O X X . |
$$ | . X . . X O X O O O O . X O . O O X . |
$$ | . . X X . X . O X X O O X O . X O O . |
$$ | . O O X . . 2 . O X X O O X X X O . . |
$$ | . X X O O X . . O X . X X . X . O . . |
$$ | . . . X X . . . O X X O X . X . . . . |
$$ | . . . . . . . . . . . . . X . . . . . |
$$ ---------------------------------------[/go]
With every sente move, always think, "Does this exchange help me? What options does it lose?". It is so easy to play aji keshi.