Sharing my notes on 3-3 invasion variations

[negapesuo]

I took some notes from lessons available online for corner variations for 3-3. If you are interested feel free to study it. I personally found it to be essential to know these by heart. I'm still memorizing but with some practice, I'm sure I can internalize it.

The level should be appropriate for most mid level SDKs. Anyone below that level would benefit significantly from it, I believe.

Please let me know if there are any mistakes - the notes are a bit messy since I didn't bother to pretty it up, but hopefully you find it valuable.

https://lifein19x19.com/download/file.php?id=10748

[jlt]

The two following diagrams are from Uberdude's post viewtopic.php?p=239372#p239372

$$B Black at a is better than b
$$ ----------------+
$$ . . . . . . . . |
$$ . . a X O O . . |
$$ . . O b X O . . |
$$ . . . . X . . . |
$$ . . . . . . . . |
$$ . . . . X . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |

Click Here To Show Diagram Code

[go]$$B Black at a is better than b
$$ ----------------+
$$ . . . . . . . . |
$$ . . a X O O . . |
$$ . . O b X O . . |
$$ . . . . X . . . |
$$ . . . . . . . . |
$$ . . . . X . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |[/go]

$$W
$$ ----------------+
$$ . . 2 . . . . . |
$$ . . 1 X O O . . |
$$ . . O X X O . . |
$$ . . 7 8 X 3 . . |
$$ . . . X O O O . |
$$ . . 4 6 X X X . |
$$ . . . 5 . . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |

Click Here To Show Diagram Code

[go]$$W
$$ ----------------+
$$ . . 2 . . . . . |
$$ . . 1 X O O . . |
$$ . . O X X O . . |
$$ . . 7 8 X 3 . . |
$$ . . . X O O O . |
$$ . . 4 6 X X X . |
$$ . . . 5 . . . . |
$$ . . . . . . . . |
$$ . . . . . . . . |[/go]

Other remark: the cut

$$W
$$ --------------+
$$ . . . . . . . |
$$ . . X O O . . |
$$ . O X X O . . |
$$ . . . X . . . |
$$ . . X O O O . |
$$ . . 1 X X X . |
$$ . . . . . . . |
$$ . . . . . . . |
$$ . . . . a . . |
$$ . . . , . . . |

Click Here To Show Diagram Code

[go]$$W
$$ --------------+
$$ . . . . . . . |
$$ . . X O O . . |
$$ . O X X O . . |
$$ . . . X . . . |
$$ . . X O O O . |
$$ . . 1 X X X . |
$$ . . . . . . . |
$$ . . . . . . . |
$$ . . . . a . . |
$$ . . . , . . . |[/go]

can be dangerous if White has stones around a.

[topazg]

$$B Another possibility with black stone high
$$ ----------------+
$$ . . . . 1 . . . |
$$ . . . X O 2 W . |
$$ . . O 3 X O . . |
$$ . . . . X . . . |
$$ . . . . . . . . |
$$ . . . . X . 4 . |
$$ . . . . . . . . |
$$ . . . . . . . . |

Click Here To Show Diagram Code

[go]$$B Another possibility with black stone high
$$ ----------------+
$$ . . . . 1 . . . |
$$ . . . X O 2 W . |
$$ . . O 3 X O . . |
$$ . . . . X . . . |
$$ . . . . . . . . |
$$ . . . . X . 4 . |
$$ . . . . . . . . |
$$ . . . . . . . . |[/go]