Go Commentary: Chen Yaoye vs Choi Cheolhan – 16th China Korea Tengen


This is a commentary of the second game of the 16th China Korea Tengen, between Choi Cheolhan (9p) and Chen Yaoye (9p). Chen Yaoye won the first game and this was a best of three match, so Choi had to win this game to stay in the competition. The game was full of interesting tesuji, many of which you normally only find in tesuji books. So it’s a great game to review to learn more about tesuji in practical play.

Weekly Go problems: Week 64


Here are the weekly Go problems. Easy Go problem: If white makes a solid chain of stones it will be hard to capture them. Intermediate Go problem: Making two eyes isn’t the only way to live. Hard Go problem: If you consider the possibilities, you’ll find a double threat where two variations overlap.

Weekly Go problems: Week 63


Here are the weekly Go problems. Easy Go problem: By sacrificing a stone you can save black’s two corner stones. Intermediate Go problem: One of the keys to attacking is doing it in a way that makes resistance difficult. Hard Go problem: There’s a key point in the corner that saves white in almost every variation.

Weekly Go problems: Week 62


Here are the weekly Go problems. Easy Go problem: When you strike the vital point first, you reduce the resilience of your opponent’s group. Intermediate Go problem: With two more stones, black has two eyes. Hard Go problem: Black’s two stones at the bottom can help to save black’s lower right groups.

Go Commentary: Gu Li vs Lee Sedol – Quadruple ko – 17th Samsung Cup

Lee Sedol 9 dan (foreground) and Gu Li 9 dan (far right).

This game is from the round of 32 (group stage) of the 17th Samsung Cup. It’s between Lee Sedol and Gu Li. This is the 29th game between Lee and Gu, and so far, their record is the tied at 14-14. Their games are always exciting and interesting to watch…

Weekly Go problems: Week 61


Here are the weekly Go problems. Easy Go problem: It’s a fundamental principle of capturing races that you should fill outside liberties first. Intermediate Go problem: White’s lower right group looks safe enough, but black can reduce it to one eye. Hard Go problem: Black would like to play on the left and the right…

Weekly Go problems: Week 60


Here are the weekly Go problems. Easy Go problem: When there’s no way to gain liberties, look for a way to reduce your opponent’s. Intermediate Go problem: A strong position lets you play moves that would normally be unreasonable. Hard Go problem: When living, you want to make your eyespace as large as possible…

Go Commentary: Lee Sedol vs Jiang Weijie – 1st Bailing Cup


This game was played in the 2nd round of the 1st Bailing Cup, between Lee Sedol and Jiang Weijie. This is their first game together. Lee Sedol is currently ranked number two in Korea, and Jiang Weijie is ranked number four in China.

Weekly Go problems: Week 59


Here are the weekly Go problems. Easy Go problem: Black’s position is weak on both sides, which means offense is the only defense. Intermediate Go problem: Black has three outside liberties, so look for a way to reduce white to two. Hard Go problem: You need to reduce white to two liberties again. Your finishing moves are important, so don’t celebrate too early.

Weekly Go problems: Week 58


Here are the weekly Go problems. Easy Go problem: Taking the time to defend firmly lets you fight more effectively later. Intermediate Go problem: Sometimes sacrificing some stones is the best way to make shape. Hard Go problem: White’s stones are short of liberties, but black needs to work hard here.