Eye liberties if almost-almost filled

  Difficulty: Advanced   Keywords: Life & Death, Tactics, Theory

The number of effective liberties of an almost-almost filled eye is the sum of the first N natural numbers (one for each filling stone) plus two (for the unfilled spots). The filling stones, of course, have to form a killing shape and must be extendable to another:

[Diagram]
(0) + 2 = 2  



[Diagram]
(0 + 1) + 2 = 3  



[Diagram]
(0 + 1 + 2) + 2 = 5  



[Diagram]
(0 + 1 + 2 + 3) + 2 = 8  



[Diagram]
(0+1+2+3+4) + 2 = 12  




Author: Robert Pauli


Eye liberties if almost-almost filled last edited by RobertPauli on April 28, 2004 - 12:44
RecentChanges · StartingPoints · About
Edit page ·Search · Related · Page info · Latest diff
[Welcome to Sensei's Library!]
RecentChanges
StartingPoints
About
RandomPage
Search position
Page history
Latest page diff
Partner sites:
Go Teaching Ladder
Goproblems.com
Login / Prefs
Tools
Sensei's Library