My big mistake was that I missed |14.q815.p716.p10 which is a pattern I should know by now. But even after that, Cosimo had to work hard. He found 19.u6 which I missed.
Earlier in the game, |13.j9 looks strong because of C5 and the potential move white L5 in conjunction with an attack on the right side. But I don't have a specific line.
On
2021-07-18 at 20:36,
Cosimo Cardellicchio
said:
I think that my 9.j13 was an error, because after your 10.h12, I was forced to block the connection in the lower part of the board with 11.i17 and you have an open route in the upper right part of the board. I tried to block with 13.r8, and I agree that your 14.q815.p716.p10 is very strong (almost surely winning for you). On the other hand, 13.j9 is not so good, because 14.i1015.l1016.j8. I can recollect that, before 13.r8, I looked for various lines to enter into the upper left part of the board, but I found nothing good (of course, it is possible that my analysis was not correct). I thought that the game was lost... As a final note, 19.u6 appears to me to be the "natural" move: an Achilles defense on the guideline supported by r8 and f11. Is there anything better?
Earlier in the game, |13.j9 looks strong because of C5 and the potential move white L5 in conjunction with an attack on the right side. But I don't have a specific line.
On the other hand, 13.j9 is not so good, because 14.i10 15.l10 16.j8. I can recollect that, before 13.r8, I looked for various lines to enter into the upper left part of the board, but I found nothing good (of course, it is possible that my analysis was not correct). I thought that the game was lost...
As a final note, 19.u6 appears to me to be the "natural" move: an Achilles defense on the guideline supported by r8 and f11. Is there anything better?