Han Sang-hun (2p) vs Weon Seong-chin (9p) — Chunlan Cup, 2008

Reading the board

What every overlay on the board means

AI suggestions

Blue dot — best move KataGo's top pick. No number on it. Toggle: AI button (A)

Other candidates Blue is the best move in this position. Green is good, gold is OK. Numbers inside show points difference compared to the blue (best) move. Toggle: AI button (A)

Cyan halo A standout move — the engine's top choice in a spot where it wasn't obvious. Most precise on Study and Deep analysis; on a quick (free) analysis it's a lighter estimate. Toggle: Move animations (in view settings)

Territory & dead groups

Territory tint Faint black or white wash over intersections the engine expects that color to own. Toggle: Territory button under the board Toggle: Territory (in view settings)

Red overlay — groups in danger Stones the engine thinks are at risk of being captured. Toggle: Groups button under the board Toggle: Groups (in view settings)

Dead stones (×) Stones the engine considers dead. Toggle: Groups button under the board Toggle: Groups (in view settings)

Move animations

−7 pts

Score-loss pill Drops in next to a move that lost 5+ points. Orange for mistake, red for blunder. Toggle: Move animations (in view settings)

✦ ✦ ✦ ✦ ✦

Sparkles — set-up move The opponent's next move was a 5+ point mistake. This move probably set it up. Toggle: Move animations (in view settings)

Continuations

Try a line out, move by move

Each tile is a move you could play next. Tap one to play it: it lands on the board as a numbered stone, and this panel refills with the options that follow. Keep tapping to build a line.

The Variation panel above lists the moves you've played. Tap any of them to rewind there; tap ← Main line to return to the game.
Tap Preview on the current move to lay the whole continuation on the board at once — the AI's best line, or the recorded one if the game has it. Tap again to clear.
Tiles tagged sgf are variations saved in the game record.
Each tile's corner shows how good the move is — from blue (best) through green and yellow to red — the same color it has on the board. The blue-highlighted tile is the AI's top choice.
The move actually played in the game isn't shown here — only the alternatives.

New lines you play here are read to 100 visits — quick, but shallow. A deeper read finds longer, stronger continuations.

See deeper analysis plans →

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Han Sang-hun vs Weon Seong-chin

7th Chunlan Cup · Korean qualifier, group semi-final · 2008-02-14

About this tournament

Founded in 1998 and held biennially, the Chunlan Cup is China's flagship international Go championship, sponsored by the Chunlan Group (one of China's largest air-conditioning manufacturers). The format is a 24-player knockout with the top 8 seeds entering in round two, leading to a best-of-three final. Prize money is generous: US$150,000 for the champion and US$50,000 for the runner-up. The tournament has been graced by champions from all three major Go nations, with Lee Changho winning twice and Korean star Shin Jinseo winning the 13th edition in 2021. It serves as an important counterweight to Korean-hosted events, ensuring China has a seat at the table in determining Go's world champions.

Game details

Date: 2008-02-14
Moves: 315
Komi: 6.5
Rules: Japanese (assumed)
Result: W+5.5
Game record: GoGoD

Ranks at the time of the game

Han Sang-hun Black · 2p

Weon Seong-chin White · 9p

7th Chunlan Cup · Korean qualifier, group semi-final

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