03-23 Title holder Kyo Kagen doing well in 60th Judan title match
Already in the early stages of this game the AI prefered
black. But at 171 black goes wrong, not decisively but most
of the lead slips away. When black goes wrong again with 175
things seem beyond repair.
03-20 IchiRiki takes Kisei in solid style
The critical moment in this game seems around 65. White has
a few weak groups and needs ways to settle them.
The AI engine KataGo does not agree with white's choices in
this phase as the LizGoban graph below shows. The graph shows that
at move 89 black is leading 0.5 point and the chance to carry
home this lead is 56%.
A better way to settle? Let's see what the experts will find out
once the analysis will reach us.
03-10 Kisei will go all the way
To me the two key points in this game are diagram 1 and 2.
Black is using a sacrifice strategy of his marked stones to attack
the large marked white group. In the game white pushed with A instead
of capturing the black stones immediately.
At move 194 the whole group depends on the outcome of this ko.
Does the saying hold: "big groups don't die"?