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26

Choosing the right distance for an extension basically depends on your goal in extending as well as the relative strength of stones in that area. Also, we need to differentiate between extensions to just explore open areas and extensions from existing walls. Extensions from a wall Let's start with the basics first. There is a well known rule of thumb, ...


25

It depends. As a teacher, the most important is to reach your student and provide him the information he wants and requires in a way he can understand. You have to see how he likes to work and adjust to him accordingly. However, I can give you general advice as well. Time settings and at what point to explain The teaching process should start prior to ...


22

Historically, pro ranks were an indicator of playing strength. It was said that 3 (later: 4) ranks are about a stone difference. To my knowledge, there never was a time when 1 rank difference actually meant 1 stone. In the 20th century, there was a sudden and increasing change in the strength of new pros. This is generally considered to be a consequence of ...


21

First of all, note that, unlike the more popular shape with a kosumi instead of a keima, this shape carries a lot more aji and is vulnerable to yose tesuji and approach moves. $$ A lot less aji $$ --------- $$ -........ $$ -........ $$ -.....X.. $$ -...X.... $$ -..X..... $$ -........ $$ -........ Oh, and by the way, an invasion is supposed to live in gote. ...


20

First of all, I want to insist that my answer is not 'dogmatic'. It is rather the way I like to think and rather a guideline instead of a deterministic answer. $$ --------------------------------------- $$|. . . . . . . . . . . . . . . . . . .| $$|. . . . . . . . . . . . . . . . . . .| $$|. . . O X . . . . . . . . . . . . . .| $$|. . O X . . . . . , . . . . ...


19

The design of Go components is all about symmetry. Because perspective shortens the vertical height of the board, the boards are made taller than they are wide. This way they appear to be square when you're playing. Another similar issue occurs with the stones. Black stones appear to be smaller than white stones, so the black stones are actually made ...


19

AlphaGo Now there is AlphaGo by Deep Mind, a company recently bought by Google playing currently a match against 9p Lee Sedol. It is the Deep Blue of Go. EDIT: The final result of the match of five games was AlphaGo 4 – Lee Sedol 1. This confirms the former conjecture: AlphaGo is the Deep Blue of Go.


19

Yes. That white chain has only two liberties - A and the space next to A. If black fills both of them the chain will be captured. None of the surrounding black stones are vulnerable to capture because of their eyes, so white has no defense against this play. The space next to A will have no liberties when black plays in it, but that is okay because ...


18

The 3 space extension is vaguely connected, but compared to the more solid 2 space extension, it can be split a lot easier. $$cm1 $$ . . . . . . . . . | $$ . . . . . . . . . | $$ . . . . . . B . . | $$ . . . . . . . . . | $$ . . . . . a O b . | $$ . . . . . . . . . | $$ . . . . . . B . . | $$ . . . . . . . . . | $$ . . . . . . . . . | If the opponent ...


18

In tsumegos where you should kill a group, the best (and thus correct) answer is always the solution where you kill unconditionally (if possible). Only if there is no unconditional kill the ko would be the best (correct) solution. The basic idea is that a tsumego is a local fighting position which you should solve without knowledge of the rest of the board. ...


17

KGS http://www.gokgs.com/ IMO the best server for lower level games. It as an active English speaking community Ranking system is relatively meaningful, even in the lower ranks Many features in the client, such as game reviews


17

I know much more about Go than chess, so I don't know how accurate my guesses about chess endgames will be, but... I think chess tends to be at its simplest in the endgame (like Go), and there is little information in the endgame about how the rest of the game progressed (unlike Go). And, there are algorithms for winning (in some cases) that generalize to a ...


16

The 2 space extension is generally regarded as very hard to cut and thus solid, providing at least 1 eye with various options to gain a lot more eyespace easily. However, invasions and attacks are still possible. The B1 move in your diagram is actually a standard invasion with the marked black stone around. $$cm1 A possible invasion of two-space extension $...


16

There is a lot of discussion on whether starting on 19x19 or 9x9 is preferable, the general consensus tends to 9x9. Personally, I started on 19x19 but would have preferred 9x9. As a beginner, you first need to understand the most basic melee fighting tactics (atari, ladder, snapback, basic life and death, etc). Those can be learned on both big and small ...


16

Yes, but Black doesn't need to. Since each of the surrounding groups already have two eyes, there's no reason to play those stones. In fact, it will cost Black two points in Japanese scoring. If one of the outside groups was in danger, then you could play at A and the point next to A to remove the group. When the second stone is played, both the two ...


15

On the contrary, studying tactics for go is essential. Books or online resources on Joseki, Tesuji, and Life and Death situations are good places to start, followed by general opening strategy as you gain experience. Playing games on 13x13 boards as well as the standard 19x19 will assist you in gaining experience in the balance between influence to the ...


14

From the manufacturing standpoint, a few thousand years ago it was easier to produce stones that were convex on both sides. Before the Tang dynasty, because of this, all the stones were convex on both sides (just like ishi stones). During the Ming dynasty, crafting skills progressed and stones could be shaped with 1 flat side and 1 convex (good for ...


14

First of all, are you confusing influence and thickness? See my answer here for the difference. Influence and thickness obviously have to lead to territory in the end, the questions is, how? The rationale behind "Do not use thickness to make territory" is to not use it directly in a crude way. Imagine a situation like this: $$Wcm1 Black's direction of ...


14

The small board focuses on close fighting. You're right; it is recommended for beginners for developing fighting skill and tactics, but the strategy component is lacking--at least when compared to a 19x19 board. The big board is not just like playing 4 small board games next to each other. Through ladders and potential escape routes, the stones on one side ...


14

First off, count the current score. If you're winning, do not invade. Just make sure you keep white small enough that you still win. Let use further presume that black would be losing. You counted, so you know by how many points. A move around c could be parried with a sacrifice of two white stones while sealing off the rest of the upper right corner ...


13

GoProblems http://www.goproblems.com/ The traditional problem site. Has many user contributed problems. Personally I'm not too fond of it, since the problems often vary in style getting me out of the problem solving flow.


13

Has the Monte Carlo method already been applied to other games? (Are there concrete implementations available? Yes. This Grad paper might be of interest to you. It covers Backgammon, Bridge, Go, Scrabble, and Clobber. Backgammon, implementation TD-gammon. Bridge, implementation Bridge Barron. Probably outclassed these days by other computer ...


12

Most of the special terminology of Go is just Japanese Go terms adopted by English-speaking players. Depending on who you're dealing with, you can be just as likely to see references to "shimari" and "fuseki" as you are to see "corner enclosures" and "the opening". A good beginner's resource for learning Go can be found at Sensei's Library. In particular, ...


12

How to study Go wrongly, a practical reference Even though you already directly pointed in the right direction, let me disregard part of your actual question and answer differently first. Consider it a supplementary answer. A common mistake in studying I believe there is a typical trap many Western players easily fall into (I'm guilty of this myself): ...


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