Score
Tap any stone that is dead to remove it — tap again to put it back. The count updates as you go. Japanese/Korean territory scoring, komi 6.5: you score the empty points you surround plus the stones you captured, and your own stones on the board are not points. Play currently enforces simple ko.
Review
What the engine did
What changed
- now counted for Black
- now counted for White
- a stone that changed sides — no longer expected to survive
- the move this note is about
These notes are generated by this app from the engine's own numbers. They describe what changed on the board and in the engine's estimate — they are not a teacher's judgement, no Go player has reviewed them, and they never say what you should have played.
This game
Fixed for this game — board, strength and reading are set before your first move so the record says what you actually played against. Start a new game to change them.
Take White and the engine opens at once. Changing the board, the strength or the colour before you have played takes that opening back and has it played again under the new setting — so these three can be set in any order, and a game that begins as White is not already decided. They are fixed from your first move onwards.
Learn
Eight tasks on the rules themselves — liberties, atari, capture, escaping, suicide, ko, territory. No model needed, so it works before one is loaded.
Living and killing small groups. Every answer is settled by an exhaustive search rather than by anyone's opinion, so it holds to the same standard as the rules track.
Import or draw your own position, keep it in a library, and replay an exact local line. Problems outside the solver's proof boundary are saved without a verdict.
Import a whole-board screenshot or SGF, scrub through the game, branch from any position, and see the local model's suggested moves. Unlike 사활 helper, these are model opinions, not proofs.
Shapes worth recognising. Unlike the two tracks above, the advice here is not proved — only the liberty counts are checked. Every card says so and states when it is wrong.
Games
Model
The model loads itself on launch and is cached on the device. You only come here to change it, or after a corrupted copy has been discarded.
b18c384nbt-humanv0 — KataGo's Human-SL network, which plays like a chosen kyu level rather than being a strong engine made to play badly. Without it the Rank setting has nothing to run on. Same as the model above: chosen once, then cached and loaded for you.
Diagnostics
Then play a few moves and run a review. If the page survives both, two models can be resident and the opponent need not be swapped out to review a game.