Solving Go on small Boards

Solving 5x5 Go

• http://games.slashdot.org/article.pl?sid=05/02/21/2356235&tid=208&tid=14
• http://erikvanderwerf.tengen.nl/
  • http://erikvanderwerf.tengen.nl/5x5/5x5solved.html
  • http://erikvanderwerf.tengen.nl/mxngo.html

• http://brooklyngoclub.org/jc/go2by2.html Results of games up to 2x2 (dead link)

The used rules for solving differ, see:

• Superko
• Go Rules Bestiary

Static analysis of life/death:

• Bensons Algorithm

"Pass-alive Go"

What is smallest number of stones needed for a pass-alive (unconditional) whole board win? Complete list of solutions for 2x2, 3x3, 4x4 and 5x5 boardsizes (link dead?)

Go Variants

The Variant Atari Go

• http://erikvanderwerf.tengen.nl/pubdown/ponnuki_olympiad02.ps.gz

A Variant called "Mathematical Go"

• http://londerings.sourceforge.net/
  • Go solver for tiny boards "Solves Mathematical Go by using brute force for small boards" (in Python,c++), these have been solved and verified:
    • win for black: 2x2, 3x1, 3x2, 3x3, 4x1, 4x2, 4x3, 4x4, 5x1, 5x2, 5x3, 6x2, 6x3, 7x1
    • win for white: 1x1, 2x1, 6x1

• http://sourceforge.net/project/showfiles.php?group_id=27388&release_id=42828

The three links above point to the same resource - a directory of python scripts - unfortunately without any documentation.

• For rules see: http://brooklyngoclub.org/jc/rulesgo.html (dead link)

• http://brooklyngoclub.org/jc/go.html (dead link)
  • Go on a 2 by 2 board (dead link)
  • Mathematical Rules of Go (dead link)

Since the links are quite dead, here's the gist from http://archive.is/Q7N43 :

• passing not allowed
• suicide not allowed
• superko (looks like positional)
• first player to not have a legal move loses.

See also:

Rules of Go
Small board Go
Different Sized Boards
5x5 Board
Mathematical vs Metaphorical Understanding