Variations of Our Solution (Ib)
KataGo's 2021 Solution
Main Line
: As the main variation here, we will display KataGo's favoured solution to the problem, i.e. the sequence of moves with the highest win rates in KataGo's "Analysis Mode". : Alternative option (with a slightly less winrate) is the jump to , threatening to break through to her centre group. It will result a change in the order of moves (= "CHITOOM"). : Alternative option (CHITOOM) is the atari at . : : Alternative options (CHITOOM) are , , and . : Alternative option (CHITOOM) is . : Alternative option (CHITOOM) is . : Alternative option (CHITOOM) is . : Alternative options (CHITOOM) are and . : | |
: Alternative options (CHITOOM) are and . : Alternative option (CHITOOM) is . : Alternative options (CHITOOM) are and . : : Alternative option (CHITOOM) is . : : : : Please note that Black loses a potential ko-threat here. Alternative option (CHITOOM) is . : | |
: Please note that we played this kikashi before the throw-in above in Our Solution. : | |
: Please note that this move loses another potential ko-threat for Black. : : : : : : | |
: : : Alternative options (CHITOOM) are and . : (40 58ab) Alternative option is the jump to the second line with . : : : Alternative option (CHITOOM) is . : : : | |
: : : (49 58ah) Alternative option is playing the guzumi early with . : Alternative option (CHITOOM) is . : Alternative option (CHITOOM) is . : | |
... | |
: Alternative option (CHITOOM) is . | |
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: : : | |
: : Alternative option (CHITOOM) is . : (100 58ai) Alternative options (CHITOOM) are , (giving Black no chance for playing Joachim's atari at the second line) and (but which can be considered a technical mistake if unnecessarily played so early). : (C 58ee) Alternative options (CHITOOM) are , and (giving Black no chance for playing Joachim's atari at the second line, see the subvariation above) . : (C 58ef) Alternative options (CHITOOM) are and . : (E 58eg) Playing the atari at the top -- following Joachim's idea - is a mistake, if White has not yet connected her two stones in the lower left, providing Black with an additional two Main Semeai Liberties. Played otherwise - after this connection - it would result in the same final scores as here. See this subvariation ( 58ef) for details. : Alternative option (CHITOOM) is . | |
: : Alternative option (CHITOOM) is . : Please note that White lost two tempi in the Main Semeai by this move. : Alternative option (CHITOOM) is . The crosscut in the upper left corner has been played already, so this move in the centre would be really no mistake, contrary to one of KataGo's selfplay games ( 58ct). : Alternative option (CHITOOM) is . | |
: Alternative option (CHITOOM) is . : Black will be worse in the Semeai Variation, if he defends with or at the bottom, instead. If Black gets to play in the right centre, capturing White's single stone there, he will achieve a drawn game, only. Please refer to example #1 ( 58ct) and example #2 ( 58dc). : Alternative option (CHITOOM) is . | |
: : : | |
: Alternative option is . : : Alternative option (CHITOOM) is . : : | |
: This move ends the playback of KataGo's sequence of moves. | |
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Black plays 1/1 reduction. | |
Capture Variation: Compared to Our Solution (2020), ...
In total, gains and losses compensate for each other. White + 2 => White + 2 | |
Semeai Variation: Compared to Our Solution (2020), ...
In total, gains and losses compensate for each other. Black + 4 => Black + 4 | |