• a : 3-4 Komoku
• b : 4-4 Hoshi
• c : 3-3 Sansan
• d : 3-5 Mokuhazushi
• e : 4-5 Takamoku
• f : 6-3 Oomokuhazushi
• g : 6-4 Ootakamoku
• h :5-5 Gonogo

statistics

[1]

3-4 point Josekis

Overview of approaches by White

• a : low
• b : high
• c : distant (low)
• d : distant high
• e : distant very high
• f : 'wrong' direction
• g : 'wrong' direction low
• h : 'wrong' direction very distant high

Details of 3-4 point approach joseki

• Low approach
  • Diagonal
  • Keima
  • One-space low pincer
  • One-space high pincer
    • One-space high pincer contact underneath
  • Two-space low pincer
    • Two-space low pincer diagonal
  • Two-space high pincer
    • Two-space high pincer diagonal
      • Kado joseki
    • Two-space high pincer one-point jump
    • Two-space high pincer press
  • Three-space low pincer
    • 3-4 Point, Low Approach, Three Space Low Pincer, Counter Pincer
  • Three-space high pincer
• High approach
  • Inside Contact
    • Nadare Joseki
      • Large Avalanche
  • Outside Contact
  • Keima
  • Low extension
  • Large low extension
  • One-space low pincer
  • One-space high pincer
  • Two-space high pincer
    • One-point jump
    • Keima
    • Ogeima
    • Outside attachment
    • Inside attachment (not joseki)
  • Three-space high pincer
• Distant low (large knight, ogeima) approach
• Distant high approach
• Distant very high approach
• 3-4 point approach from the wrong direction
• Other: BQM22, BQM25, BQM34, BQM77.

enclosure by Black

• a
• b
• c
• m : Fujisawa Hideyuki
• z : not joseki, yet sometimes played.

[2]

4-4 point josekis

Overview of approaches by White

• a : low
• b : high
• c : distant (low)
• d : distant high
• e : sansan invasion
• f : shoulder hit
• g : very low
• h : outside contact (44 point outside contact?)
• j : inside contact
• k : very large knight's approach?

Details of 4-4 point approach joseki

• low approach
  • low extension
    • standard joseki
      • 4-4 point joseki bad follow-up
    • 4-4 point staircase joseki
  • high extension
  • large low extension
  • large high extension
  • attachment
    • block
    • extend
    • cut
    • wedge
    • invade
  • knight's move cap
  • One-space low pincer
    • 3-3 invasion
      • 4-4 point one-space low pincer invasion, interception
      • 4-4 point one-space low pincer invasion, block
    • one point jump
    • low double approach
    • high double approach
    • upper contact on pincer
  • One-space high pincer
  • Two-space low pincer
  • Two-space high pincer
  • Three-space low pincer
  • Three-space high pincer
  • 4-4 point diagonal attachment joseki, 4-4 point low approach, diagonal contact then pincer,
  • 4-4 point low approach diagonal (the Takemiya kosumi)
  • tenuki
    • 4-4 point, double low approach
    • 4-4 point, low-high double approach
• high approach
  • tenuki
    • 4-4 point, double high approach
• very low approach
• distant (low) approach
• distant high approach
• outside contact
• inside contact
• The 3-3 point invasion: Basics, Advanced
• Other: BQM30, BQM31, BQM41, BQM72, BQM78.

developments by Black [101]

• a : Iron pillar consolidation
• b : high slightly open
• c : low territorial
• d : large (low) development
• e : large high influence
• f : sansan prevention
• g : kosumi ???

[3]

3-3 point josekis

Overview approaches by White

• a : distant high most common
• b : shoulder hit common
• c : distant low a little heavy
• d : low a little heavier
• e : high challenged as joseki
• f : very distant hardly an approach

developments by Black [102]

• a : large high most orthodox
• b : large low secure
• c : high prevent the shoulder hit
• d : low rare

• Other: BQM15, BQM23, BQM58, BQM 87.

[4]

3-5 point josekis

approach by White

• a : low most common
• b : sansan invasion
• c : high stay out of trouble
• d : distant low ancient
• e : very high very high and very uncommon

Details of 3-5 point approach joseki

• 3-5 point low approach/statistics
  • Press
  • One-space low pincer
  • Taisha joseki
    • Taisha solid connection
    • Ways to avoid the taisha
  • Two-space low pincer
  • Two-space high pincer
  • Three-space low pincer
  • Three-space high pincer
• 3-5 point 3-3 approach
• 3-5 point high approach, i.e. 3-5 point 5-4 approach.
• 3-5 point distant low approach, i.e. 3-5 point 5-3 approach
• 3-5 point very high approach, i.e. 3-5 point 5-5 approach
• Other: BQM13, BQM24, BQM27

3-5 point enclosure josekis by Black

• a : converts to 3453
• b : 3554 open

[5]

4-5 point josekis

Overview of approaches by White

• a : low most common
• b : sansan invasion
• c : Is most likely a special strategy.

Details of 4-5 point approach joseki

• 4-3 point without or with support
  • keima
    • 4-5 point 4-3 approach keima, contact at 3-5
    • 4-5 point 4-3 approach keima, contact at 3-5, hanedashi
    • 4-5 point 4-3 approach keima, tenuki
    • 4-5 point 4-3 approach keima, contact at 6-3
  • inside contact
    • 4-5 point 4-3 approach inside contact tenuki
    • 4-5 point 4-3 approach inside contact, follow-ups
  • outside contact
    • tenuki
  • ogeima
  • thrust
• 3-3 point
  • 4-5 point 3-3 invasion and 3-5 Point 3-3 Approach
• 5-3 point transposes to 3-3 point low approach

enclosure by Black

• a : converts to 3454
• b : converts to 3354 (This move secures the corner and can be considered a change in original strategy, because the initial choice of 4-5 point is an influence-oriented move.)
• c : 3554 open

Side patterns

Shoulder hit

, diagonally approaching a stone on the third line, is know as a shoulder hit. Black has several options for dealing with this move, the most important of which are a and b. Playing elsewhere is generally a bad idea in this situation.

Capping play

, approaching a stone on the third line from above, is know as a capping play. Common responses include a and b. Ignoring this move is less serious for black than ignoring a shoulder hit.

Approach

The approach is common when dealing with a stone on the fourth line.

Invasion

There are standard sequences on the side when invading a position, see Three Space Extension Invasions