Five stones on the third line in the corner  

This is the Five stones on the Third line in the Corner position and according to Segoe Kensaku's Go Proverbs Illustrated it is alive as it stands.

If it was not in the corner but on the side it would be the Five stones on the third line its status would depend on who moves first

Table of contents Segoe's conclusion The Descent Hasty inside play See also

Table of diagrams Five stones on the third line in the corner Segoe's conclusion White's option 1 White's option 2 A hasty attack Against ''a'' above Against ''b'' above

Segoe's conclusion

Segoe's conclusion  

Segoe's Go proverbs illustrated gives this diagram alone to show that this group is alive.

After the group is undeniably alive. Depending on who plays next in this corner White lives with 4 to 5 points of territory

The Descent

White's option 1  

Against descent, White may take the vital point with . reduces White's territory slightly compared to above ( at a fails to White b).

White's option 2  

White's block at allows Black to force a seki, nullifying the White territory. However White may later try a or even b depending on outside situation.

Hasty inside play

A hasty attack  

If black attacks at here, occupies another vital point and lives. a and b are miai.

Against a above  

Against the descent , secures an unconditional life.

Against b above  

If Black tries to make a seki in the corner, White escapes with a clamp .

(Past /Discussion and Discussion thread on lifein19x19 (both lengthy and mostly wrong).

See also

• RTGProblem85, RTGProblem86, RTGProblem87
• Four stones on the third line in the corner