Joachim's Ko-Semeai - Putting the Cart
Before the Horse (2013 - 2015)
4 - Black's Variation with Move 63
( 980) (Referenced by 940) We will provide the transformation for the variation for now. We simply start with the exchange of and . But thereafter, White's four stones are in atari, so we will move to the upper edge, where it occupies the ordinary outside liberty of White's group. |
|
Black's group has seven liberties now (3 * c, 3 * b, k), with four effective liberties for White's centre group (w, 3 * c), which is a disaster for White. This implies that White must have made a mistake with creating this special position. |
|
It is the exchange of the marked stones ( / ) that is harmful to White, and therefore is a grave mistake in this sub-variation. |
|