Variations of Our Solution (IIIa)
No Early Kikashi
VAR (.1) (.4)
: ( 648cx) | |
: (A 648ec) He must not continue with the ko fight, e.g. by playing his kikashi in the hanezeki as a ko threat. Unnecessarily, he would fall into the trap that White had set up with her splitting of the Nakade Sequence. : (A 648ed) However, in order to justify her splitting the Nakade Sequence, White would have to deviate from the "usual" continuation. She might want to play at , thereafter prioritising the Semeai Variation. | |
Now that we know that winning the ko is within Black's grasp, we need to be careful about the order of moves. White wants to connect her single stone at the upper edge with , because this move gains the most territory outside the Main Semeai area. Black would be able to recapture the ko in the left centre with . Thereafter, White is barely ahead in ko threats (8 x , vs. 8 x ), so she will win Dany's Ko. This implies that she does not want to insert her kikashi , in the lower left corner (for gaining an additional point overall there), just because this would lose her ko threat at , resulting in Black winning Dany's Ko (and an overcompensation of his loss in the lower left). Black might want to simplify the issue by not fighting the ko until the very end. | |
White's second option at the top is the block with . In this case, White is comfortably ahead in ko threats (7 x , vs. 4 x , ). A loss of her ko threat at would not affect the outcome of the ko fight. Black will capture White's single stone at the upper edge in return. Now, it is Black, who gains territorially at the top. White might also consider changing the order of moves, and start with her kikashi , in the lower left corner. | |
: (137 648em) Alternatively, she can connect her single stone at the top with . | |
(141 648eo) She might consider pre-empting Black's following kikashi in the hanezeki by taking the point of herself. ; : : : : We have reached a change in the order of moves with the superordinate variation. White will win both Main Variations by one point | |