Sub-page of TheArtOf9x9Go

Accompanying material of The Art of 9x9 Go, by [ext] Monteo da Westi


White wins by 1.5 points, komi 6.5


This commented game from [ext] OGS was edited to provide insights into the strategy and tactics of 9x9 Go at the high-dan level.

Black, [ext] Daisuke Murakawa 9p, was still just a 6th grader when he became a professional Go player at the Kansai Ki-in. He was only one month older than White, [ext] Iyama Yuta 9p, making him the second youngest professional in Japan. He is the youngest Kansai Ki-in professional. White is his rival.

White, from the Nihon Ki-in, is the first player in history to hold all seven major Japanese titles simultaneously.

This game, White plays a little better at the opening and the endgame, while Black made a big mistake at Move 41, so Iyama (White) wins by 0.5. If Murakawa didn’t make the mistake, he would win nicely.


Old Comment
The 4-4 point is the most common move among pros besides tengen. It's a good outpost to prepare for fighting, but just as in the larger boards, it's open to the opponent invading underneath and taking the corner territory and then you're stuck with the outside (and the outside is really small on the 9x9 board).

New Comment
In pro games, however, White will never attack B1 at the triangle. Rather, White will enjoy a simple-and-balance move of W2 (e.g., at a or b), to take advantage from the komi.


Iyama Yuta 9p plays W2 at the 3-4 point, good at controlling the corner territory.

However, W2 is not the best move. It is too low and shows that Iyama is a territorial player. This is Iyama’s first mistake. Black can attack it at a or b, with the support of B1, to gain a larger potential territory.


B3 is a good approach but not the best attack. White can win if replying B3 with the stronger approaching move at the triangle.

The solution for Black 3 is to hit W2 at the square, to maintain the balance.

TheArtOf9x9Go/Iyama last edited by on January 8, 2021 - 17:57
RecentChanges · StartingPoints · About
Edit page ·Search · Related · Page info · Latest diff
[Welcome to Sensei's Library!]
Search position
Page history
Latest page diff
Partner sites:
Go Teaching Ladder
Login / Prefs
Sensei's Library