Problem 120 aus dem Igo Hatsuyoron
von Inoue Dosetsu Inseki (1646 - 1719)
![]() Schwarz zieht und gewinnt |
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Contents![]() Explains a very special type of Seki. ![]() Highly recommended for a better overview. Provides a historical outline of the key-results of our investigations so far, including our solution. ![]() The sequence with the strongest play of both sides; professionally approved. Includes the key-move found by Joachim Meinhardt, after which White wins the game. ![]() ![]() ![]() Some questions, which arose in 2007 during the discussions with Joachim while writing and editing these texts, and which finally led to the development of the Guzumi. ![]() Contains most of the variations for the Main Path found in the sources. We added some variations we thought to be helpful for the reader, too. ![]() The sources mention a Semeai that will end harmful for Black after this move. We went through the "common" Semeai-variations, but found none. We had looked for a move that might open the door again for a win by Black. This includes our attempts after my very first idea for a "bad-shape" move in the top right corner. Finally we concluded that the timing for this move was not correct. ![]() Contains variations (as of 2008) after what we think to be the correct timing for the "bad-shape" move winning Black the game (in our opinion). Most of these variations are on amateur Kyu level; only a few have been checked by professional knowledge. ![]() ![]() An essay, based on my experiences with professionals. |