21st Judan · Losers' Section Semi-final
Tap a point on the board to explore a line from here.
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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 →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.
If you want the whole collection on your own machine today, GoGoD sells it directly:
Established in 1962 by the Sankei Shimbun newspaper, the Judan ("Tenth Dan") is the fourth-oldest of Japan's seven major titles, with a winner's prize of approximately 14 million yen. Its name evokes the pinnacle of Go rank -- historically, 9-dan was the highest official grade, so "Tenth Dan" symbolically places the champion beyond even that ceiling. The Judan stands out for its unusual double-elimination preliminary format: a player who loses in the winners' bracket drops to a losers' bracket rather than being eliminated, and the two bracket winners face off to determine who challenges the defending champion in a best-of-five title match.
- Date
- 1983-01-13
- Moves
- 269
- Komi
- 5.5
- Rules
- Japanese (assumed)
- Result
- W+0.5
- Game record
- GoGoD