"The Many Faces of Go" is the 2008 World computer go 19x19 and 9x9 champion, 2002 World Computer Go Champion, 1998 World Computer Go Champion, and ten time US Computer Go Champion. It is one of the strongest Computer Go opponents in the world, and has many other great features including an integrated IGS client so you can play on the Internet. A sophisticated set of go problems and a Joseki tutor help you improve your game.  It includes several go players of different strengths, from 2 kyu to 18 kyu, so players of any level can have a challenging game.

System requirements: IBM-PC or compatible, Pentium or faster, 32 bit or 64 bit CPU, Windows NT, XP, 2000, Vista (32 or 64 bit), or Windows 7 (32 or 64 bit).  256 MB or more main memory.

 Download The Many Faces of Go Version 12 Free trial

 Purchase a Registration for The Many Faces of Go Version 12

In 2006 and 2007 a new breakthrough algorithm for computer go (Monte Carlo Tree Search), was developed in France.  This new approach plays thousands of pseudorandom games each second, and collects statistics on the moves to choose where to play.  With very little go knowledge, this algorithm can beat any of the traditional, knowledge-based, go programs.  However the style of this new algorithm by itself is strange.  Many Faces of Go, version 12 is the only program to combine the new search algorithm with the go knowledge from version 11 to get the benfit of both. It gains strength from Monte Carlo evaluation, but avoids most of the strange moves.  This led to over five stones increase in playing strength.  At the 2008 ICGA world championship, the pure Monte Carlo programs beat all of the traditional programs, and Many Faces of Go version 12 beat all of the Monte Carlo and traditional programs.

Major New Features in Version 12

• World champion (2008) go engine, over 5 stones stronger than version 11.
• Calibrated levels from 18 kyu to 2 kyu to give any player between 20 Kyu and 1 Dan a good even game.
• You can play ranked games and the engine will track your rank as you improve.
• The 2 Kyu or better Monte Carlo level increases in strength with more time or a faster computer. It's stronger on small boards. On 9x9 it's over 3 Dan.
• Multiple users can track playing strength by name.
• Improved Vista compatibility. It uses the Microsoft installer, which works on all Microsoft operating systems and Linux or Mac. \ It uses the newer HTML help system, since the older help is not supported on Vista. It works well on 64-bit Vista.
• This is a downloadable program with a free trial, so there is no need to wait for a CD in the mail. You can download it and see how it looks and read the manual to understand all the features. The free trial will play games at the 18 Kyu level, and you can review the included games or any other sgf game. When you purchase the program you get keys for each of your computers to enable the full program.
• Bug fixes and minor updates are available free. The program can check for updates for you.
• The progam will resign when it is behind, or you can resign a rated game if you are behind.
• The default komi was changed from 5.5 points to 6.5 points to match recent changes in standard rules.
• You can talk to the engine. It includes a simple English language conversation generator. The conversation control is in text files so you can change it if you like./

Version 12 Features:

• Great graphics. Beautiful and adjustable 3-D slate and clamshell stones with shadows, and realistic wood grain. You can rotate the board, or add coordinates. Won the "Best Design" award at the 1991 World Computer Go Championship.
• Sound. Realistic clicks and capture sounds, and sounds for pass, IGS match, etc.
• Strong go player. 6 levels of play, from 18 Kyu to 2 kyu. 2008 World Computer Go Champion in both 19x19 and 9x9.
• Go tutorial. Over 100 screens of text, examples, and simple problems teach you the rules, elementary tactics and strategies.
• Go problems. Over 2000 go problems for all levels of player. The program selects problems for you based on your strength, and tracks your strength as you solve them. Problems appear in different orientations and colors to aid learning. Go problems can be updated over the internet, and it is easy for you to add additional problems or problem sets.
• Play go on the Internet. An Internet Go Server client is built in so you can play go on the internet with the familiar Many Faces interface, and use its powerful editing features to comment your games.
• Move suggestions. At each move it can show suggestions for next move, by category (such as attacking, invading, endgame, etc). Can also show liberty counts and/or group strengths for all groups. The computer can show its lookahead while it is thinking.
• Game Score Graph. Graph your score at each move. Click on a move to go to that position.
• Move hints. Suggests your best move.
• Move explanations. Can explain why it made a move or suggested a move for you.
• Computer solving of go problems. The computer can solve life and death problems in your games to help you improve.
• Thousands of games to play through. Hundreds of professional games with commentary. About a thousand uncommented professional game records, organized by tournament. About a thousand commented amateur games from the Go Teaching Ladder. Over 4,000 uncommented very strong amateur games.
• Powerful Game Editor. Can present for review any game in the standard Ishi format (.go) or the popular Smart Game Format (.sgf). When reviewing a game you can try to guess the next move. A wide variety of marks are supported. You can add commentary or variations. Use ctrl-click to move directly to any move in the game. Insert, delete, or drag stones to new positions. Great for recording your own games for later study.
• Can play and score using all major rule sets (Japanese, Chinese, GOE, and American).
• Can play either color, or serve as an electronic go board for two people.
• Can give or receive a handicap.
• Fuseki Library. A library of opening sequences on the whole board from almost 100,000 professional and strong amateur games. At each position, shows the popularity of each next move.  Every game played is added to the libray.  You can add additional games.
• Joseki Tutor. Over 45,000 move library of standard corner sequences is available for browsing or testing. Includes joseki, near-joseki, trick plays, and responses to many bad moves. Use it to look up variations, or to test your joseki knowledge.
• Play by modem. Uses the Computer Go standard modem protocol for play with any other go program that supports this protocol. Either player can make moves for either color,allowing discussion or teaching games. Players can type messages to each other during the game.
• Printing of go diagrams or full games with numbered moves.
• On-line manual with information on history, tournaments, professionals, etc.

Read a review of version 10.

How To Buy Version 12

The most recent computer go engine (version 12) is available in Japan, as "AI IGO 17", with a Japanese user interface for Windows or Macintosh. This is one of the best selling go programs in Japan.

You can play against "The Many Faces of Go" on the internet at IGS or KGS. It uses the name "ManyFaces" on both servers. The version on IGS might talk to you.

Rating

Go ratings for amateurs are on a scale that starts around 25 Kyu for beginners, goes to 1 kyu, then 1 dan, then 6 dan or so for the strongest players. Most people who are serious about studying the game, and have stronger players to play with, can get to 10 kyu in about a year, and 1 dan in 3 to 5 years. American (AGA), Japanese, and NNGS ratings are a little weaker than ratings in China, Taiwan, Korea, Europe, and IGS.

Go programs are hard to rate accurately, since they each have areas of strength, and other areas of weakness compared to people. So far no one has made a go program that can learn from its mistakes, so once someone has played a few games against a program, they can change the handicap against it by several stones.

The older Many Faces of Go version 11 has a 6 Kyu diploma from the Japanese Nihon-Ki-in, based on test games against rated Japanese players and some sample play against a 9-dan professional. It had a rank on the NNGS server of   8 kyu.

Many Faces verison 12 maintains a rank of around 2 Kyu on KGS, based on hundreds of games against many different players.

Known Bugs, Incompatibilities, and issues in Version 12

• On Linux or Mac with older version Wine, the stones have black squares under them on the board. Recent Wine updates have this bug fixed, but use incorrect colors for the shadows.

Known Bugs, Incompatibilities, and issues in Version 11.0

• Installation on Vista sometimes fails. See the support FAQ for help on installing on Vista.

Known Bugs, Incompatibilities, and issues in Version 10.0

• On some Windows-NT machines the 256 color graphics don't work, so the game appears in only 16 colors. A patch is available to fix this bug. Download it here.
• If you add commentary to a move, then immediately try to guess the next move and guess wrong, the commentary is lost. To work around, after adding commentary, just go back a move then forward again before guessing the next move.

Popular suggestions for future versions. No guarantees that any of these will be in the next version, but this is what I am thinking about working on.

• Stronger go engine - I will do this for sure.
• Much bigger joseki library from a Japanese joseki dictionary.
• More pro games, especially from Korea.
• Add context menus for right button mouse clicks.
• Search for positions in the opening library

Older Versions

• Between 1981 and 1987, various versions were given away free to friends, running on HP-1000, Vax, and PA-RISC. An old HP-UX free version is still available on some web sites, called xgo.
• September, 1988. Cosmos, the Computer Go Partner for the IBM-PC. One upgrade version of Cosmos was released in 1990.
• The source code for the final version of Cosmos was given to the Spec benchmark committee, and is now 099.GO, one of the SpecInt95 benchmark suite. Hundreds of compiler writers around the world tuned their compilers to make my go program run faster :-) Spec's description of the program.
• The Many Faces of Go had five earlier releases (7.0x, 8.0x, 9.0x, 10.0 and 11.0) between 1995 and 2002.
• Igowin is a free 9x9 only Windows-95/98/NT version of Many Faces of Go, that plays fast, tracks your go strength as you improve, and learns from its mistakes so it never loses the same way twice. It includes the full Many Faces of Go tutorial, and an on-line manual with lots of information about the game. Download it here.
• Igo was a 9x9 only DOS version of Many Faces of Go, with a deliberately dumber engine. It includes the Go tutorial from The Many Faces of Go, and has the same great graphics. It is free, and intended to help beginners learn the game.
• Go simulator was a version of the first release of The Many Faces of Go, released in Europe with a 3 language manual and box.
• An early version of The Many Faces of Go was sold in Korea, with a Korean box and manual.
• A version for EO and Intel Penpoint OS handheld computers.
• Go programs based on the Many Faces of Go engine are on sale in Japan and Korea, for IBM-PC, Mac, Nintendo-DS, and Sony Playstation.

Other Information About The Many Faces of Go

• World Computer Go Tournaments and Results.
• US Computer Go Tournament results.
• European Computer Go Tournament results.
• The Computer Go Ladder.
• Many Faces Biography and History.
• The Standard Computer Go Modem Protocol
• Knowledge Representation in The Many Faces of Go

Other Computer go pages

• Lots of computer go information at the American Go Association.
• Lots of computer go information.
• Excellent paper on Computer Go by Jay Burmeister.
• Computer-go mailing list and archives.

Game Pages

• Mind Sports Olympiad Worldwide - Bringing Brains Together!"

Page created by: fotland@smart-games.com
Changes last made on: February 26th, 2009