Guanzi Pu · Study 18
Guanzi Pu · Study 18. Go, White to play. Study 13 reference plies, try both sides and branch from the replay.
Site coordinates run A–S left to right and 1–19 top to bottom; A1 is the top-left intersection.
Read the position, one decision at a time
Try the position first, then open the notes. They explain measurable changes in the reference, not every possible variation.
Reveal step-by-step explanations
1. White · Q15
This move captures 0 stones. After captures, the connected group containing the new stone has 1 stones and 2 liberties: Q16, R15. Diagonal neighbours are not part of the same group. More than one liberty does not by itself establish life; examine the next move.
2. Black · Q16
This move captures 0 stones. After captures, the connected group containing the new stone has 4 stones and 2 liberties: Q17, R16. Diagonal neighbours are not part of the same group. More than one liberty does not by itself establish life; examine the next move.
3. White · R15
This move captures 0 stones. After captures, the connected group containing the new stone has 2 stones and 3 liberties: R14, R16, S15. Diagonal neighbours are not part of the same group. More than one liberty does not by itself establish life; examine the next move.
4. Black · R16
This move captures 0 stones. After captures, the connected group containing the new stone has 5 stones and 3 liberties: R17, S16, Q17. Diagonal neighbours are not part of the same group. More than one liberty does not by itself establish life; examine the next move.
Understand this position
19 ranks × 19 files · 12 black stones · 15 white stones
Count the liberties of each connected group, not the empty points next to just one stone. Orthogonal contact connects; diagonal contact does not. Try your move, count captures and recount the resulting group’s liberties before comparing the reference.
Read the reference line (13 plies)
Coordinates match this board: letters left to right, row numbers from top to bottom. These are board coordinates, not traditional score notation.
- White
Q15 - Black
Q16 - White
R15 - Black
R16 - White
R12 - Black
R13 - White
S12 - Black
S13 - White
R17 - Black
S16 - White
R19 - Black
R18 - White
S18