1996-10-28 last update, 1996-10-28 first day, Robert
Jasiek
Copyright: All rights of the author are preserved according to the
international law.
Examples 6
Introduction
This page compares standard examples and well known special
cases under different rule sets. Typical usages of ko rule sets give the
expected numbers of game end passes. Conventions
are defined. If a whole big string should have marks on it, just ignore
them; they are immaterial. See also Complexity.
Examples
Basic ko
Double ko
- ALL: coexistence, +[pp]
- PSK: -[pp]
- SSK, BK, P, NK, I91: B-[abpabpp]
Triple ko
- SK, NK, I91: fight, W+[att..]
- SK: W-[acbacttbacbattcbacbttacbacttbacbattcbacbtt..]
- NK, I91: W-[att..]
- BK, P: W dead, W+[pcpp], W-[acbacbpcpp]
- C88, J89: possible void game
Three kos, one slightly bigger
Moonshine life
- SK, C88: W corner dead, B+-[apdpp]
- BK, P: W corner alive, +[pp], B-[abcabcpp]
- NK, I91: W corner dead, B+[apdpp], B-[abcabcapdpp]
Triple ko
- SK: W dead, B+[apbpp]
- BK, P, NK, I91: coexistence, +[pp]
- C88, J89: possible void game
Three kos
- SK, NK, I91: W dead, B+[apbpp]
- BK, P: coexistence, +[pp]
- C88, J89: possible void game
Quadruple ko
- SK, BK, P, NK, I91: coexistence, +[pp]
- C88, J89: possible void game
Ring of 4 basic kos
- SK, NK: first player wins
- BK, P, I91: coexistence
- C88, J89: possible void game
Four kos
- SK: B to play: one W corner dead
- BK, P, NK, I91: B dead
At b shall be a B stone, at d shall be a W stone
- SK: fight, B+[attcttbttdtt..], B-[acbttdacttbdattcbatt..]
- BK, P: B dead
- NK: fight, B+-[attcttbttdtt..]
- I91: fight, B+-[attcttbd..]
- C88, J89: possible void game
Molasses Ko
- PSK: fight for last tenuki (B to play: B wins)
- SSK: B to play: coexistence
Molasses Ko
- BK, P, NK: first player wins
- I91: fight
- C88, J89: possible void game
Two double ko stones
- SK: fight or coexistence
- BK, P, NK, I91: coexistence
- C88, J89: possible void game
Two double ko stones
- SK, BK, P, NK, I91: fight
- C88, J89: possible void game
Links