1. Introduction

Wallyplus is an experimental Go playing engine with a GTP-compliant interface. It is written in C++ using the KDevelop development environment. Wallyplus has a simple structure derived from the original wally.c program by Bill Newman.

1.1 Changes

1. The source code was converted to C++ and made into a KDevelop project.
2. A handbook in LinuxDoc SGML was added. KDevelop generates the HTML version automatically.
3. The file i/o routines previously added by Kevin Stock were removed.
4. Wallyplus can now play Black or White.
5. A different number of handicap stones can be specified for the common board sizes of 9, 13 and 19.
6. A Go Text Protocol (GTP) version 2 front-end was added.

1.2 Pseudocode

main()
  read command line
  parse command line
  if (gtp)
    gtp_play_loop()
  else
    console_play_loop()
  endif


gtp_play_loop()
  receive command
  parse command
  execute command


console_play_loop()
  display board on console
  get console input
  play