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Apr
20
comment How does AlphaGo calculate?
The Deepmind website had the paper without a paywall, but it seems it was removed (or I missed it) - too bad!
Apr
20
comment How does AlphaGo calculate?
No, neither of them solves for complete solutions (If they did, that would mean the games were solved!). --- By the way, computers are "it", not "she" (even though the female form has mistakenly been propagated recently.)
Mar
11
comment What is the actual world ranking of Fan Hui
The cyberoro image is from open.cyberoro.com/photo/201407/%5B519386%5D140722-pj-04.jpg, but I don't remember the corresponding articles. I don't know anything about the WBaduk schema, sadly.
Feb
29
comment In go, is it possible to guess the opponent's strength?
@NathanThompson The score difference is a very good point (from many games, not just one, of course). I've heard of it with 7, 10 or 14 points instead of 20, it seems everyone uses a different metric there. Considering that 1 handicap stone equals 2 komi in theory, something around 14 sounded most reasonable to me, but I've never really thought about this.
Feb
18
comment In go, is it possible to guess the opponent's strength?
I'm not sure if there is a real answer to this question. Skill in Go is not a linear progression: You may be great at tesuji, but your fuseki may be terrible - or the other way around. And in particular, you often don't know that you're bad at something (thus cannot judge others correctly on that topic). --- That being said, I am currently working on a project which involves gathering evidence on this very issue, so maybe there is some kind of answer, after all.
Feb
8
comment Are shell and slate go stones fragile?
I have no sources except personal experience, but from that, it seems there is little practical difference between glass, yunzi and slate/shell. I wish I could justify buying slate and shell stones with their increased durability.
Jan
17
comment How do I chose invasion or reduction points?
@Christophe I have no idea how exactly black would continue after S14, but to me it looks like he can find some compromise/exchange. Not sure. Requires a lot of reading obviously, which I wanted to avoid doing too much of in this post (I was trying to keep it somewhat generic so the ideas apply to different boards, too). Let's just hope S14 does not completely destroy black :)
Jan
17
comment How do I chose invasion or reduction points?
Nice spotting the 3+5 shape, it reduces quite a lot and has good yose properties. Also surprisingly safe.
Jan
16
comment How do I chose invasion or reduction points?
@Christophe Thank you. Good points, and upon reading the variations again, I agree white 2 is a strong move there even if it's a bit risky. I've edited the question to take that into account. (The diagram your comment referred to is the fifth of "Hybrid approach".)
Jan
15
comment How do I chose invasion or reduction points?
Maybe we should shape this question more towards "How do I chose invasion or reduction points?", as that would be easier to search for by others and also reflect the core problem better.
Jan
15
comment How do I chose invasion or reduction points?
Oh dear, what have I done
Dec
9
comment How to run strong Go (baduk) playing program locally?
The strongest bots often require cluster computing, and are not available to most users. However, dan-level bots can surely be bought, e.g. remi-coulom.fr/CrazyStone
Nov
1
comment How does the example of rule 601.2h work?
@GendoIkari Yes I hallucinated, surely like this :)
Oct
8
comment Can black win in this Go situation?
The only conceivable move for black would be to extend his 5 stones downwards (nobi). If white hane, then black hane, and if white cuts, then black closes white in to try and create a seki - but white can make that fail by creating an eye. And even without that, white has numerous ways to resist this, so it is not at all certain if black can survive. In any case, the white group is alive, while the black group is struggling and 99% dead.
Oct
8
comment Can black win in this Go situation?
The move in the picture does not work. White will push down, then atari three times, and then white either captures a stone or connects.
Mar
16
comment How far can you safely extend from your own wall?
@naught101 Black stole the edge area from white, so white cannot make eyes there anymore - which sucks, because making eyes in the center is much more difficult (it simply takes more stones to do so). Accordingly, white cannot expect to make many points with this group (because she will probably be busy to keep them alive). I'm not saying the white stones are weak, but they are weaker than they should be, without any gain in exchange - it is simply a poor trade, and white should try to avoid it if possible. In this case, it is relatively simply to avoid without major losses, so why not!
Feb
28
comment What happens in Go if you “take back” a ko before making a ko threat?
I was not aware of that. I thought the rules we used at the EGC (and other tournaments) are official, and did not cover this - or did they? I may have misremembered.
Jan
29
comment Fight - can black stones be killed?
I know there is a book which explains this sort of situation, but I just can't remember which one it was. It also covered why 7 is a mistake (a classic - everyone made it at one point in their Go career, I bet).
Jan
29
comment Fight - can black stones be killed?
In the second to last picture, 7 should be either at 9 or at C3. Once black gets 15, there is absolutely no way to kill it - however, the shown sequence is not correct in several places. For instance, 19 should definitely be at 20, and black can very easily live with 21 at M2, even though he has even better ways.
Jan
28
comment Tsumego intermediate problem 11 - possible without winning ko two times?
Can only agree :)