7 votes
Accepted

Why is this NOT joseki?

I don't think it's that the joseki move is forcing, it's more that the joseki move is better. 5 here is pretty sad for White. For 4 to be joseki, you would need a response to this move that turns ...
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  • 3,024
4 votes

Komoku-Oogeima joseki order variation

1 and 2 are "honte" moves. They result in solid positions as they remove all aji from the marked stones, but are not mandatory. $$cm1 $$ +---------------------------------------+ $$ | . . . . . . . ....
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  • 1,021
3 votes
Accepted

Trick Joseki? Shoulder hit after keima to 3-4-stone

Black's pincer is too close to White's stone (it should be at least one space lower). (This variation is not in the joseki books because it is not joseki.) That means that White can "lean on it while ...
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2 votes
Accepted

Overplay in orthodox fuseki - Leela AI fails miserably?

W1 should be N11, then black dies, I'd claim from memory. W1 at R13 is probably not a complete disaster in itself, but O12 should then be O11, or maybe P10 should be O10. That would force black to ...
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  • 6,854
2 votes
Accepted

4-4 high approach joseki question

I have never seen Black 5 in any joseki book, but I'm sure I've seen it in my games. Probably a typical amateur mistake :) However, I have no idea why it would be bad - it looks like a reasonable move ...
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2 votes

4-4 high approach joseki question

In your shoes, I'd play e16 (atari), Black pulls out to d17, White, e17, threatening to capture two stones, Black c17, you f15 to "capture" the Black stone on f16. But that assumes that the top is the ...
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2 votes

Trick Joseki? Shoulder hit after keima to 3-4-stone

Take a look at Kogo's Joseki Dictionary. It has several variations for this move - too many to show them here.
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  • 3,024
1 vote

Having started a small avalanche, what does one do with an undefended cutting stone?

9 looks like a severe mistake to me. White may simply capture the single stone and be satisfied, like this: $$B Simple punishment $$ ........- $$ ....Ob..- $$ ....XO..- $$ ..1.XO..- $$ ...XOX2.- $$ .....
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  • 6,854
1 vote

Why is this NOT joseki?

The problem with W4 is that it is a "slow," non-forcing move that gives Black many options. Some of those have been covered by other answers, but one good move is P17 (one right of 2) that gives Black ...
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1 vote

Why is this NOT joseki?

White 4 gives black another chance to reinforce the corner (at a or b), as it doesn't put much pressure on 3: $$ ---------- $$ ..........| $$ ..........| $$ ..3.2.....| $$ ...4..1...| $$ ..........| $...
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  • 1,021
1 vote

Why is this NOT joseki?

NOTE: I am stupid and misread your diagram as komoko (3-4) instead of hoshi (4-4) in the corner. The following applies to komoku only! I was going to delete this answer, but then decided to leave it ...
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