Opening Systematic Classification / Dieters Proposal

I propose to classify opening patterns (fuseki) according to the first four moves, assuming they are either star points or 3-4 points. That already makes for ~70 different distributions, including symmetry. Usually, openings are classified from Black's perspective, as Black has the initiative. We usually don't differentiate White's choices to play 4-4 or 3-4 and so we can simplify the classification by assuming two white star points.

Four star points

[Diagram]
Parallel star points  

Parallel star point opening?, which can lead into the san ren sei opening? at a.

[Diagram]
Diagonal star points  

Diagonal star point opening?



One 3-4 point

[Diagram]
Parallel facing  

This leads to the Chinese opening, a or the Kobayashi opening, b.

[Diagram]
Parallel non-facing  

This can lead into the orthodox opening?, a, or the small Chinese opening, b.



[Diagram]
Diagonal  

Due to symmetry, there's only one diagonal pattern with one 3-4 stone.



Two 3-4 points

[Diagram]
Parallel facing (mukai komoku)  
[Diagram]
Parallel non-facing  

(to be explored as it looks very awkward and rare)

[Diagram]
Parallel mixed  
[Diagram]
Diagonal facing same star point  
[Diagram]
Diagonal facing different star point  

Opening Systematic Classification / Dieters Proposal last edited by Dieter on June 25, 2020 - 11:02
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