Robert Jasiek's Go Theory Research

[RobertJasiek]

Due to several requests for on overview, here it is. The overview on Robert Jasiek's go theory research is available in greater detail here:

http://home.snafu.de/jasiek/RobertJasie ... earch.html
Message-ID: <hf3qg81qcdcfnl5e9hi4bthhri1oeovt0e@4ax.com>

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Abbreviations

[I] = invention
[W] = first or probably first to write down clearly verbal knowledge
in English, German or possibly world literature
[G] = general knowledge stated as principle, procedure, method, definition, rule or ruleset
[C] = invented general major concept
[T] = theorem and proof

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The Most Important Inventions for Players

- Direct connection, indirect connection [IWG]
- Influence stone difference [ICG], mobility [IWCG]
- Re-definition of two-eye-formation [IG]
- Definition of stability [ICG]
- Classification of regions [IWG]
- Definition of current territory [ICG] [there was the predecessor Cho Chikun]
- Generalised connection (n-connected) [ICG]
- Generalised life (n-alive) [ICG]
- General definition of influence [ICG] (informal and formal
versions; degrees and evaluation)
- General definition of thickness [ICG] (informal and formal
versions; degrees and evaluation)
- Method of value evaluation of all josekis, except those with global (ko or semeai) fights [ICG]
- New Semeai Formula [IG]
- Ko and dame endgames under area scoring [IWGT]

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The Most Important Inventions for Advance of Go Theory

- General definition of ko, regardless of position and ruleset [IG]
- General definition of influence [ICG] (informal and formal
versions; degrees and evaluation)
- General definition of thickness [ICG] (informal and formal
versions; degrees and evaluation)
- Capturable-1, local-2, capturable-2 [IG]
- Alive in Japanese 2003 Rules equals alive in World Amateur Go Championship Rules model [IT] [Jasiek conjecture, Chris Dams proof]
- Method of value evaluation of all josekis, except those with global (ko or semeai) fights [ICG]
- New Semeai Formula [IG]
- Re-definition of strategy, hypothetical-strategy, force, prevent [IWG] [there were the predecessors Bernd Gramlich and Robert Pauli and also researchers of mathematics or abstract games]
- Generalised connection (n-connected) [ICG]
- Generalised life (n-alive) [ICG]
- General classification and definition of basic-ko types, regardless of position and ruleset [IG]
- Generalised territory (n-territory) [ICG]
- Influence stone difference [ICG]

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Other Major Inventions for Advance of Go Theory

Concepts

- Definition of stability [ICG]
- Mobility [IWCG]
- Definition of current territory [ICG] [there was the predecessor Cho Chikun]
- Classification of regions [IWG]

Terms

- Direct connection, indirect connection [IWG]
- Mobility: 4 terms (mobility / usefulness count / difference) [ICG]

Definitions

- Definition of [the scoring term] region [IG]
- Definition of [the scoring term] territory [IG]
- Definition of [the scoring term] group [IG]
- Definition of independently-alive [IG]
- Definition of in-seki, seki [IG]
- Definition of dame [IG]
- Definition of eye-point, eye, eye-space [IG] [there were
predecessors]
- Re-definition of two-eye-formation [IG]

Strategy

- Ko and dame endgames under area scoring [IWGT]

Theorems

- Cycle Law [IT]
- Prisoner counting for stone scoring [IT]

Ruleset

- Japanese 2003 Rules [IG]

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Other Inventions

Terms

- Answer-strategy, answer-force [IG]
- Virtual-force [IG] [there is a related term by other
researchers]
- Fighting liberties [IG]
- Territory efficiency) [IG]

Definitions

- Definition of investment [ICG]
- Definition of external / internal ko [IG]
- Preliminary definitions of pass-fights [IG]
- Definition of semeai-eye, stable / unstable eye, strong / weak eye [IG]

Theorems

- No frequent pass-fights under Ikeda Territory I Rules [IT]
- Ko and dame endgames under Ikeda Territory I Rules [IGT]

Principles and other Methods

- Empty corners during the middle game: 4 principles [IG]
- Positional judgement: 2 procedures [IG], 2 principles [IG]
- Unsettled Group Average [IWGT] [there were predecessors among CGT endgame researchers]
- Local positional judgement: 4 methods [IG]
- Global positional judgement: 2 aspects [IG]
- Extensions, checking extensions: 1 principle (gap from wall) [IG]

Classification

- 6 classes of basic capturing races [IG]
- Complete study of 93 cases of basic capturing races [IWG]
- Functional classification of josekis [IG]
- Value classification of josekis [IG]
- Classification of strategic lines [IG]
- Classification of group meanings [IG]
- Classification of every move type and meaning occurring in joseki [IG]

Rules, Rulesets and Commentaries

- Fixed-ko-rule [IG]
- Simplified Japanese Rules [IG]
- Simplified World Mind Sports Games Rules [IG]
- Commentaries on Ing Ko Rules [IG]
- Commentaries on Japanese 1989 Rules [IG]
- Commentaries on World Amateur Go Championship Rules [IG]
- Commentaries on Verbal Japanese Rules [IG]

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All Research Sorted by Topic

Strategy

- Re-definition of strategy, hypothetical-strategy, force, prevent [IWG] [there were the predecessors Bernd Gramlich and Robert Pauli and also researchers of mathematics or abstract games]
- Answer-strategy, answer-force [IG]
- Virtual-force [IG] [there is a related term by other
researchers]
- Strategic planning: 4 methods [WG]
- 3 other definitions [IWCG]
- Other related research [IGT]

Strategic Concepts

- Connection: 2 principles [IG], 6 principles [WG]
- Generalised connection (n-connected): 1 definition [ICG]
- Cut: 16 principles [WG]
- Generalised life (n-alive): 1 definition [ICG]
- Generalised territory (n-territory): 1 definition [ICG], 1
derived definition (half territory) [ICG]
- Gote and sente: 4 re-definitions [IG], 4 principles [WG]
- Efficiency: 1 definition (territory efficiency) [IG], 2
principles [WG]
- General definition of influence [ICG] (informal and formal
versions; degrees and evaluation)
- General definition of thickness [ICG] (informal and formal
versions; degrees and evaluation)
- Thickness: 12 principles [WG], 6 definitions
- Definition of stability [ICG]
- Urgency: 4 principles [WG]
- Definition of investment [ICG]
- Investment: 9 principles [WG]
- Playing elsewhere: 14 principles [WG], 1 method [IG]
- Mobility [IWCG]
- Mobility: 4 terms (mobility / usefulness count / difference) [ICG], 6 principles [IG]
- Influence stone difference [ICG]
- Forcing: 3 principles [WG]
- Timing: 1 principle [IG], 16 principles [WG]
- Attack + defense: 4 principles [WG]
- Ko: 1 principle [WG]
- Other definitions of strategic concepts

Shapes

- Pendulum Ko [IG]
- A new type of double ko [IG]
- Infamous Ko [WG]
- 1 joseki [IG]
- 2 principles [WG]

Ko and Other Restrictions

- Default Restriction Rules [IG]
- Local-ko-intersection [IG]
- Global-ko-intersection [IG]
- General definition of ko, regardless of position and ruleset [IG]
- General classification and definition of basic-ko types, regardless of position and ruleset [IG]
- Dead Ko [IWG]
- Closed Death [IG]
- Semi-stable Ko and its variants [IWG]
- Definition of external / internal ko [IG]
- Preliminary definitions of pass-fights [IG]
- No frequent pass-fights under Ikeda Territory I Rules [IT]
- Various other ko research [IGT]
- 1 principle [WG]

Opening and Middle Game

- 14 principles [WG]

Middle Game

- Empty corners during the middle game: 4 principles [IG], 2
principles [WG]
- 2 principles [WG]

Endgame and Boundary Play

- Ko and dame endgames under area scoring [IWGT]
- Ko and dame endgames under Ikeda Territory I Rules [IGT]
- Related terms [IG]
- 9 principles [WG]

Fighting

- 19 principles [WG]

Perception

- 4 principles [WG]

Psychology

- 8 principles [WG]

Reading and Move Decision

- Local Move Selection [WG]
- 5 principles [WG]

Fundamental Terms

- Prisoner-difference [WG]
- Locale [WG]

Analysis Methods and Positional Judgement

- Definition of current territory [ICG] [there was the predecessor Cho Chikun]
- Definition of quiet group, quiet position [IWG] [there were
predecessors among computer-go researchers]
- Positional judgement: 2 procedures [IG], 1 procedure [WG], 2
principles [IG], 25 principles [WG]
- Unsettled Group Average [IWGT] [there were predecessors among CGT endgame researchers]
- Local positional judgement: 4 methods [IG]
- Global positional judgement: 2 aspects [IG]
- Tewari: 3 principles [WG]
- Classification of groups [WG]
- Classification of regions [IWG]
- Nature of reduction sequences: 7 principles [IG], 7 principles [WG]
- Other definitions [WG]

Capturing Races

- New Semeai Formula [IG]
- 6 classes of basic capturing races [IG]
- Complete study of 93 cases of basic capturing races [IWG]
- Re-definition of 5 types of basic capturing races [IWG] [there was the predecessor Richard Hunter]
- Fighting liberties [IG]
- Definition of semeai-eye, stable / unstable eye, strong / weak eye [IG]
- Characterisation of strong semeai-eyes [IWG]
- Many principles [IWG]
- Correction of 6 kinds of mistakes in literature [I]

Joseki

- Functional classification of josekis [IG]
- Value classification of josekis [IG]
- Method of value evaluation of all josekis, except those with global (ko or semeai) fights [ICG]
- Application to ca. 400 josekis [IG]
- Classification of strategic lines [IG]
- Classification of group meanings [IG]
- Strategic choices: 2 principles [IG], 53 principles [WG]
- Joseki structure by their strategic choices [WG]
- Various other definitions [IWG]
- 4 other principles [WG]

Move Types and Meanings

- Classification of every move type and meaning occurring in joseki [IG]
- Various definitions of move types [WG]
- Corner enclosures: 6 principles [WG]
- Corner approach moves: 26 principles [WG]
- Joseki pincers: 16 principles [WG]
- Direct connection, indirect connection: 2 definitions [IWG]
- Direct capture, indirect capture: 2 definitions [IG], 13 principles [WG]
- Thick shapes: 16 terms [WG]
- Light shapes: 4 principles [WG], 1 term [WG]
- Creating possibilities: 2 principles [WG], 10 terms [WG]
- Eliminating possibilites: 4 principles [WG]
- Sacrifice: 10 principles [WG]
- Proto-group: 1 definition [IG]
- Development: 3 principles [WG], 4 terms [WG]
- Extensions, checking extensions: 1 principle (gap from wall) [IG], 10 principles [WG]

Life + Death and Scoring

- Local-1 [WG]
- Capturable-1, local-2, capturable-2 [IG]
- Definition of [the scoring term] region [IG]
- Definition of [the scoring term] territory [IG]
- Definition of [the scoring term] group [IG]
- Definition of independently-alive [IG]
- Definition of in-seki, seki [IG]
- Definition of dame [IG]
- Definition of eye-point, eye, eye-space [IG] [there were predecessors]
- Re-definition of two-eye-formation [IG]
- 5 principles [WG]
- Other related terms [IWG]

Rules

- Cycle Law [IT]
- Komi and score parity [WT]
- Prisoner counting for stone scoring [IT]
- Filling solid territory [T] [Berlekamp draft, Jasiek final]
- Alive in Japanese 2003 Rules equals alive in World Amateur Go Championship Rules model [IT] [Jasiek conjecture, Chris Dams proof]
- Simple Rules [WG]
- Simplified World Mind Sports Games Rules [IG]
- Japanese 2003 Rules [IG]
- Simplified Japanese Rules [IG]
- Multi-player Go Rules [WG]
- Fixed-ko-rule [IG]
- Natural Situational Superko [IWG]
- Commentaries on Ing Ko Rules [IG]
- Commentaries on Japanese 1989 Rules [IG]
- Commentaries on World Amateur Go Championship Rules [IG]
- Commentaries on Verbal Japanese Rules [IG]
- Solution for the World Mind Sports Games 2008 Rules' Supplementary Ko Rule [IG]
- Various other rules or rulesets [IWG]
- Various other commentaries on rules or rulesets [IWG]
- Countless other rules research or contributions [IWGT]

[badukJr]

Why post this thread? There is no content, just a bunch of boasts that are clearly going to cause arguments here.

[tchan001]

This is RJ's study journal thread. He can enter his thoughts on go just like other members do with their own study journals on L19.

[badukJr]

Yes, that's why I asked RJ.

[Joaz Banbeck]

Yes, that's why I asked RJ.

There is really no need to ask. It is his thread.

[badukJr]

Ok, so I can't ask him why, if its his own thread? If discussion isn't allowed in Study Journals, then I will take my leave.

[SoDesuNe]

Why post this thread?

Due to several requests for on overview, here it is.

[RobertJasiek]

I encourage factual discussion. Go theory is for everybody - not just for the researchers.

[uPWarrior]

I encourage factual discussion. Go theory is for everybody - not just for the researchers.

Where can we find the papers?

[RobertJasiek]

The papers are here:

http://home.snafu.de/jasiek/kodame.pdf
http://home.snafu.de/jasiek/ko_types.pdf
http://home.snafu.de/jasiek/external.pdf
http://home.snafu.de/jasiek/ko.pdf

Part of the webpages (especially those related to rules) are on my site,

http://home.snafu.de/jasiek/

but a few others are:

http://senseis.xmp.net/?PrisonerCountingForStoneScoring
http://senseis.xmp.net/?CycleLaw

rec.games.go is a source for many (but not all) messages, e.g.,

https://groups.google.com/forum/?fromgr ... -EwE47z-cJ
http://groups.google.com/groups/search? ... itesearch=
http://groups.google.com/groups/search? ... itesearch=

[Kirby]

I encourage factual discussion. Go theory is for everybody - not just for the researchers.

Can you define "factual discussion"? It might help if we have a clear definition.

The "define:fact" definition from google is listed as:

fact
/fakt/
Noun
1. A thing that is indisputably the case.
2. Information used as evidence or as part of a report or news article.

But I think that there is very little said on the forums here that is "indisputable".

Perhaps if we identify your intended definition of factual discussion, we can make sure to have it in your thread here.

[RobertJasiek]

"related to facts"

[Kirby]

"related to facts"

What I'm getting at is that my definition of "facts" does not seem sufficient. What is a fact?

[tchan001]

I thought this is a thread about theory rather than facts

[RobertJasiek]

The thread is about
1) my go theory or my go theory research or facts established by my go theory or facts established by my go theory research,
2) questions about, discussion, application, criticism of or research beyond (1),
3) comparison of (1) to others' go theory, go theory research or facts established by go theory or facts established by go theory research,
4) other reasonably related topics.