Kodama Kunio (5p) vs Kobayashi Reiko (5p) — Prime Minister's Cup, 1967

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, 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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Print game record

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Kodama Kunio vs Kobayashi Reiko

11th Prime Minister's Cup · Round 1 · 1967-01-12

About this tournament

The Prime Minister's Cup was a Japanese tournament held by Kyodo News from 1957 to 1981, open only to 5-dan to 7-dan professionals of the Nihon Ki-in in Tokyo. It served as a springboard for rising players: Fujisawa Hideyuki won the first edition, and later winners included Otake Hideo, Ishida Yoshio, Takemiya Masaki and Kobayashi Koichi, who won it three times. The final was a single game until 1974 and a best-of-three match from 1975, and the event ended after its 25th edition in 1981. It is not the Korean Prime Minister's Cup, an international amateur championship that began in 2006.

Game details

Date: 1967-01-12
Moves: 233
Komi: 4.5
Rules: Japanese (assumed)
Result: W+3.5
Game record: GoGoD

Ranks at the time of the game

Kodama Kunio Black · 5p

Kobayashi Reiko White · 5p

11th Prime Minister's Cup · Round 1

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