BillSpightsElfPositionalJudgmentExercises/Game 6 ELF's Solution

Maeda Nobuaki, 7 dan (W) - Kitani Minoru, 8 dan, Feb. 1, 1951  

GoGoD 1951-02-01a, 4½ pt. komi

Assuming area scoring and 7½ pt. komi, after Elf reckons White to be ahead (87½% winrate, 36.6k playouts). However, Black, Kitani, won by resignation.

Elf's recommended continuation  

In the actual game Maeda played at a. Elf prefers the 3d line side attachment by 1% (attachment for sabaki, 66.9k playouts). Black plays the hane, , and White :42: replies with the 2d line counter-hane. plays the two step hane and connects.

Elf's continuation, continued  

is a kind of driving tesuji. switches to the top right corner, preventing Black from playing the jump attachment at a.

Elf's continuation, continued. Black sabaki  

Black makes sabaki in the top right, starting with the top attachment, .

Black's early errors

Crosscut loses 18½%  

68 years ago, Kitani played , the "AI attachment". ;) But then, after the hane, , he played the crosscut, losing 18½% by comparison with the counter-hane at a.

Counter-hane variation  

=

After White plays and sacrifices two stones.

Actual game continuation  

loses 11½%.

Elf's variation for Black 19  

stands. Then Black makes four stones and sacrifices them. Then starts to make sabaki for Black in the top right corner.

Variation for Black 19, continued  

switches to the 4th line side attachment against the top left enclosure.

Variation for Black 19, continued  

After the exchange in the top left, runs out.