67th Okan · Preliminary B
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Game breakdown beta
Terada Shuta vs O Keii
Terada Shuta
O Keii
59
Accuracy
53
1.6
Avg points lost
1.9
45%
Best-move match
30%
67%
Top-3 match
69%
63
Accuracy
58
1.4
Avg points lost
1.7
45%
Best-move match
36%
71%
Top-3 match
70%
Move quality
Terada Shuta
O Keii
59
Accuracy
53
38
Best move
25
12
Excellent
13
8
Good
14
9
Inaccuracy
15
7
Mistake
5
10
Blunder
12
90
Accuracy
87
11
Best move
11
8
Excellent
6
3
Good
5
4
Inaccuracy
3
0
Mistake
0
0
Blunder
0
48
Accuracy
43
20
Best move
11
2
Excellent
4
4
Good
7
4
Inaccuracy
10
7
Mistake
4
10
Blunder
11
95
Accuracy
77
7
Best move
3
2
Excellent
3
1
Good
2
1
Inaccuracy
2
0
Mistake
1
0
Blunder
1
63
Accuracy
58
38
Best move
30
13
Excellent
11
9
Good
16
9
Inaccuracy
12
7
Mistake
5
8
Blunder
10
90
Accuracy
87
11
Best move
11
8
Excellent
6
3
Good
5
4
Inaccuracy
3
0
Mistake
0
0
Blunder
0
52
Accuracy
50
20
Best move
16
3
Excellent
2
5
Good
9
4
Inaccuracy
7
7
Mistake
4
8
Blunder
9
95
Accuracy
77
7
Best move
3
2
Excellent
3
1
Good
2
1
Inaccuracy
2
0
Mistake
1
0
Blunder
1
?
Game character
Calm
Fighting
Accuracy flow
Who was playing more accurately, 5-move rolling window.
Highlights
Key moments
Mistakes
How many to review
Mistakes
Reading the board
What every overlay on the board means
AI suggestions
Blue dot — best move
KataGo's top pick. No number on it.
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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.
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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.
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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 →Print game record
Generates a printable kifu PDF
67th Okan · Preliminary B · 2025-06-23
About this tournament
The Okan (Crown) is a regional title of the Nihon Ki-in's Chubu (Nagoya) branch, sponsored by the Chunichi Newspaper. A 12-player knockout determines a challenger who faces the titleholder in a single-game title match.
Game details
- Date
- 2025-06-23
- Moves
- 169
- Komi
- 6.5
- Rules
- Japanese (assumed)
- Result
- B+R
Ranks at the time of the game