The Sente Seki

Here is the sente seki solution for the L+1 with two hanes group. It is what we learned first and for a while we thought was the only solution.



Simple and elegant, we were happy that we knew everything there was to know about this shape. Apart from the fact that we didn't :p

Tomorrow, I will post the 10,000 years ko. It starts with the same white attack at T2, but white can follow a different line of play after that.