snorri wrote:...
On a more serious note, I think it's great that the term "blunder" seems to have a clear usage in this thread. I think it's important to distinguish blunders, i.e., mistakes far beneath the players expected strength, from ordinary mistakes. I agree with others that there are no easy fixes. Trying to hard to avoid mistakes might make one's play too conservative, which itself can be a mistake depending on the position. Even for mistakes that are fairly below our level, some will slip through simply due to time constraints.
...
I am rather on the opposite side of this idea. Distinguishing 'blunders' from 'ordinary' mistakes can take our eye off the importance of those ordinary mistakes. The blunder at 299 represents a failure to see three moves ahead. But what about 285? That is a failure to count to three (as in 1, 2, 3).
$$Wc The game sequence - 4 a blunder?
$$ ---------------------------------------
$$ | . O O X X X X X . O X 2 X X O . . . . |
$$ | O . O X O X O X . . O X O 6 4 O X O . |
$$ | O O O O O O O X X . O X O O O X . X . |
$$ | O X X O . O X O . , O X O X X X X . . |
$$ | X . . X O X X O X X O X X 1 3 . X . . |
$$ | . X X X X X X X . O . O 5 X . O X . . |
$$ | . . . O . . O X X O . O . . X O O X . |
$$ | . X X . X . O O O . . O . . . O . . . |
$$ | X . . X X O . . . O . O . O . . . X . |
$$ | . X X O O O O O O , . O . . O O O O . |
$$ | O X X O X O O . O O . O X X O X X O . |
$$ | . O X O X X O . . . O . . O X . . . . |
$$ | . O X X X O . . O O . . . O . X . O . |
$$ | X O O O O O O O X X O . . . . X O . . |
$$ | X X X O . O . X X O . . . O . X X O . |
$$ | O . X O . O X . X , O . O . . X O O O |
$$ | . X X O O X X X . X O O X O . X X O . |
$$ | X . X O X X . . . X X O X X X . X X O |
$$ | . O X O . . X X X O O O X . . . X O . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Wc The game sequence - 4 a blunder?
$$ ---------------------------------------
$$ | . O O X X X X X . O X 2 X X O . . . . |
$$ | O . O X O X O X . . O X O 6 4 O X O . |
$$ | O O O O O O O X X . O X O O O X . X . |
$$ | O X X O . O X O . , O X O X X X X . . |
$$ | X . . X O X X O X X O X X 1 3 . X . . |
$$ | . X X X X X X X . O . O 5 X . O X . . |
$$ | . . . O . . O X X O . O . . X O O X . |
$$ | . X X . X . O O O . . O . . . O . . . |
$$ | X . . X X O . . . O . O . O . . . X . |
$$ | . X X O O O O O O , . O . . O O O O . |
$$ | O X X O X O O . O O . O X X O X X O . |
$$ | . O X O X X O . . . O . . O X . . . . |
$$ | . O X X X O . . O O . . . O . X . O . |
$$ | X O O O O O O O X X O . . . . X O . . |
$$ | X X X O . O . X X O . . . O . X X O . |
$$ | O . X O . O X . X , O . O . . X O O O |
$$ | . X X O O X X X . X O O X O . X X O . |
$$ | X . X O X X . . . X X O X X X . X X O |
$$ | . O X O . . X X X O O O X . . . X O . |
$$ ---------------------------------------[/go]
$$Wc Alternative 1 - Black wins in a walk, 3 liberties to 2
$$ ---------------------------------------
$$ | . O O X X X X X . O X 2 X X O . 6 . . |
$$ | O . O X O X O X . a O X O . 5 O X O . |
$$ | O O O O O O O X X . O X O O O X . X . |
$$ | O X X O . O X O . , O X O X X X X . . |
$$ | X . . X O X X O X X O X X 1 3 . X . . |
$$ | . X X X X X X X . O . O 4 X . O X . . |
$$ | . . . O . . O X X O . O . . X O O X . |
$$ | . X X . X . O O O . . O . . . O . . . |
$$ | X . . X X O . . . O . O . O . . . X . |
$$ | . X X O O O O O O , . O . . O O O O . |
$$ | O X X O X O O . O O . O X X O X X O . |
$$ | . O X O X X O . . . O . . O X . . . . |
$$ | . O X X X O . . O O . . . O . X . O . |
$$ | X O O O O O O O X X O . . . . X O . . |
$$ | X X X O . O . X X O . . . O . X X O . |
$$ | O . X O . O X . X , O . O . . X O O O |
$$ | . X X O O X X X . X O O X O . X X O . |
$$ | X . X O X X . . . X X O X X X . X X O |
$$ | . O X O . . X X X O O O X . . . X O . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Wc Alternative 1 - Black wins in a walk, 3 liberties to 2
$$ ---------------------------------------
$$ | . O O X X X X X . O X 2 X X O . 6 . . |
$$ | O . O X O X O X . a O X O . 5 O X O . |
$$ | O O O O O O O X X . O X O O O X . X . |
$$ | O X X O . O X O . , O X O X X X X . . |
$$ | X . . X O X X O X X O X X 1 3 . X . . |
$$ | . X X X X X X X . O . O 4 X . O X . . |
$$ | . . . O . . O X X O . O . . X O O X . |
$$ | . X X . X . O O O . . O . . . O . . . |
$$ | X . . X X O . . . O . O . O . . . X . |
$$ | . X X O O O O O O , . O . . O O O O . |
$$ | O X X O X O O . O O . O X X O X X O . |
$$ | . O X O X X O . . . O . . O X . . . . |
$$ | . O X X X O . . O O . . . O . X . O . |
$$ | X O O O O O O O X X O . . . . X O . . |
$$ | X X X O . O . X X O . . . O . X X O . |
$$ | O . X O . O X . X , O . O . . X O O O |
$$ | . X X O O X X X . X O O X O . X X O . |
$$ | X . X O X X . . . X X O X X X . X X O |
$$ | . O X O . . X X X O O O X . . . X O . |
$$ ---------------------------------------[/go]
After 4 White can only reduce Black to at best three liberties. Meanwhile White can not achieve more than two. Here 5 and 6 are miai, Black will always win by playing whichever White does not try. More to the point, Black can simply cut at "a", that stone also has only 2 liberties.
$$Wc Five points better than the game?
$$ ---------------------------------------
$$ | . O O X X X X X 6 O X 2 X X O . . . . |
$$ | O . O X O X O X . 4 O X O . . O X O . |
$$ | O O O O O O O X X . O X O O O X . X . |
$$ | O X X O . O X O . , O X O X X X X . . |
$$ | X . . X O X X O X X O X X 1 3 . X . . |
$$ | . X X X X X X X . O . O 5 X . O X . . |
$$ | . . . O . . O X X O . O . . X O O X . |
$$ | . X X . X . O O O . . O . . . O . . . |
$$ | X . . X X O . . . O . O . O . . . X . |
$$ | . X X O O O O O O , . O . . O O O O . |
$$ | O X X O X O O . O O . O X X O X X O . |
$$ | . O X O X X O . . . O . . O X . . . . |
$$ | . O X X X O . . O O . . . O . X . O . |
$$ | X O O O O O O O X X O . . . . X O . . |
$$ | X X X O . O . X X O . . . O . X X O . |
$$ | O . X O . O X . X , O . O . . X O O O |
$$ | . X X O O X X X . X O O X O . X X O . |
$$ | X . X O X X . . . X X O X X X . X X O |
$$ | . O X O . . X X X O O O X . . . X O . |
$$ ---------------------------------------
- Click Here To Show Diagram Code
[go]$$Wc Five points better than the game?
$$ ---------------------------------------
$$ | . O O X X X X X 6 O X 2 X X O . . . . |
$$ | O . O X O X O X . 4 O X O . . O X O . |
$$ | O O O O O O O X X . O X O O O X . X . |
$$ | O X X O . O X O . , O X O X X X X . . |
$$ | X . . X O X X O X X O X X 1 3 . X . . |
$$ | . X X X X X X X . O . O 5 X . O X . . |
$$ | . . . O . . O X X O . O . . X O O X . |
$$ | . X X . X . O O O . . O . . . O . . . |
$$ | X . . X X O . . . O . O . O . . . X . |
$$ | . X X O O O O O O , . O . . O O O O . |
$$ | O X X O X O O . O O . O X X O X X O . |
$$ | . O X O X X O . . . O . . O X . . . . |
$$ | . O X X X O . . O O . . . O . X . O . |
$$ | X O O O O O O O X X O . . . . X O . . |
$$ | X X X O . O . X X O . . . O . X X O . |
$$ | O . X O . O X . X , O . O . . X O O O |
$$ | . X X O O X X X . X O O X O . X X O . |
$$ | X . X O X X . . . X X O X X X . X X O |
$$ | . O X O . . X X X O O O X . . . X O . |
$$ ---------------------------------------[/go]
Even if Black does not think he can connect, the other cut is worth five points more than the game?
I think that it is wrong to emphasize studying basic shapes to avoid 'blunders' like the miss at 299. It can cause us to take our eyes of other fundamental issues that we equally need in order to improve. Bill said it best in another post above, 'blunders' has a negative connotation that can limit our thinking. We should keep our minds open to all kinds of improvements.