Let’s not forget to also consider the differences between TDK (triple digit kyu) and TPK (20+ kyu)…
Skills that a TPK will have mastered that are missing from the TDK repertoire:
- Recognizes that stones have been captured and can correctly remove them from the board.
- Able to recognize and avoid illegal moves, like ko and suicide.
- Does not move already placed stones (except for removing captures).
- Does not play more than one stone per turn (except to signal a resignation).
- Does not place their opponent’s stones on the board (except to signal a resignation).
- Correctly places stones on the intersections rather than centered on the squares.
- Does not try to stack stones on top of other stones when making a move.