Hong Chong-hyeon (8p) vs Yi Hyeong-ro (4p) — Myeongin, 1999

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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This game comes from the GoGoD collection — decades of careful transcription work by T Mark Hall and John Fairbairn — which we share with a daily download allowance at their request. You can keep studying it right here in the meantime, and your allowance resets at midnight UTC.

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Hong Chong-hyeon vs Yi Hyeong-ro

30th Myeongin · Round 1 · 1999-01-01

About this tournament

The Myeongin ("Brilliant Person") is the Korean equivalent of Japan's celebrated Meijin title, established in 1968. The tournament has had a turbulent history, going defunct from 2004 to 2006 and again from 2016 until its revival in 2021. Lee Changho holds the record with 13 Myeongin titles, followed by his teacher Cho Hun-hyun with 12, making this tournament a showcase for arguably the two greatest Korean players in history. The last champion before the 2016 suspension was Lee Sedol, famous worldwide for his 2016 match against Google's AlphaGo.

Game details

Date: 1999-01-01
Moves: 159
Komi: 5.5
Rules: Japanese (assumed)
Result: B+R
Game record: GoGoD

Ranks at the time of the game

Hong Chong-hyeon Black · 8p

Yi Hyeong-ro White · 4p

30th Myeongin · Round 1

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