(;FF[4]
CA[UTF-8]
GM[1]
GN[Becoming 9 kyu - Lesson 19]
PC[https://online-go.com/review/407179]
PB[Black]
PW[White]
BR[2d]
WR[2d]
OT[Error: time control missing]
RE[?]
SZ[19]
KM[6.5]
RU[Japanese]
C[

-- chat --
neodar0830: hi
Timeago: hi
Duykan: hi
bootysattva: hello
1a2b3c4d: hi
mao67bis: Hi!
jakubiszon: hi
neodar0830: jakubiszon, figuring out how to lower your rank..... we might be experts at that
jakubiszon: :D your input is always welcome
Muhammed Alperen Yaşar: You never know what you don't know, so I think everyody should be open to new information ^^
mark5000: We reviewed several approaches and enclosures.
tpnZbonek: can i ask about something?
mark5000: I hope this will help give you more choices for where to play in the opening.
mark5000: Yes! I'll take any questions now.
mark5000: That was the end of the prepared material.
Dandelion🌻: thank you vm
Yuki-Usa: awesome teaching ty sir
mark5000: Any last questions?
tpnZbonek: yes, you have also some other lessons except here? :) thanks i really appreciate those
snakesss: great lecture as always
Duykan: few words about 5-5 josekies? i offen play them, even when i know that they are not worth effort
mark5000: Yes! Find past lectures here: https://forums.online-go.com/t/becoming-9-kyu-a-series-for-beginners/3809
snakesss: make one about sacrificing stones and groups :D
mark5000: In the future, I will. I already made one about useful and useless stones.
snakesss: ik ik, i am 9kyu, aren't i? :P
mark5000: There's not moch to say about the 5-5 point.
snakesss: thanks btw, cant wait til the become 8kyu series
snakesss: :P
mark5000: In reply, you can take it with 4-4, 3-4, or 3-3 same as an open corner.
mark5000: It's so distant the 5-5 stone has little effect. Treat as an open corner.
mark5000: You're welcome.
mark5000: Next lesson will be next Saturday at an undetermined time. I do these when I find free time on saturdays.
Thuran: Hi Mark, I like what you're explaining and also the style. 
mark5000: :)
mark5000: See you all next time.
Thuran: for what level do you think this knowledge is necessary?
Thuran: because I dont know many of these
mark5000: It's intended for DDK players trying to rank up to SDK.
Thuran: yeah, thats why I wonder
mark5000: The after-lecture questions were more advanced.
mark5000: The prepared material in the first half hour was in the nature of fundamentals.
mark5000: You can rank up without fundamentals, but it's increasingly difficult.
Thuran: oh couldn't follow all lecture, have to learn from the file anyways
mark5000: To reach your best level, you should drill fundamentals, in my opinion.
mark5000: it's the same advice across many domains.
Thuran: Thx, I've to check your other demos/lectures. 
Thuran: Even noticed today about your material
Thuran: *just
mark5000: Yeah, check it out. Maybe it helps you reach 4k, since some things are new to you.
mark5000: Thanks for watching! Bye.
Thuran: thx, bye
]
(;B[pd]C[Let's look at the 4-4 point first.]
(;W[qf]C[This knight's move approach is normal.]
(;B[of]C[In response to the low approach, Black can cap like this to reduce White's influence.]
)(;B[pf]C[Attaching is also possible and achieves the same aim--reducing White's influence. If you don't like these moves, you can choose another approach.]
))(;W[pf]C[When White has influence, this high approach is also possible. Let me tell you about the intention of these approaches.

After this move, Black can't cap like before

-- chat --
jakubiszon: opening never was my strongest side ;)
]
;B[nd]C[So Black has to answer.]
;W[qd]C[Then White attaches here.]
;B[qc]
;W[qe]
;B[rc]C[This is a basic joseki.]
;W[pi]LB[nf:A]C[This extension is fine. In some cases, there might already be a White stone around here. Then White can enlarge the framework with a jump to A. When you want to build influence, this high approach can be a good choice.]
)(;W[qg]C[The distant low approach is sometimes played.]
;B[qe]C[Black can defend the corner with a diagonal here. So this approach is only played in special circumstances, relatively rarely.

-- chat --
tpnZbonek: hello looking forward to see you again
]
)(;AB[nc]C[Let's look at some enclosures. I think you all know that this knight's move enclosure is safest.]
)(;AB[nd]C[The one-point enclosure focuses more on influence than on territory.

-- chat --
tpnZbonek: thanks for your lessons
]
)(;AB[mc]C[The long knight's move enclosure is also possible, and it's interesting. Rather than an enclosure, it's more like an extension. If Black can secure the corner completely, it will become better than the small knight's move enclosure. There are some weaknesses in the corner, however. Because of that, this is an attacking enclosure.

-- chat --
tpnZbonek: yes but even that enclosure can be attacked/reduced right?
mark5000: Yes of course.
Cement: low knight's can be invaded iirc
tpnZbonek: this one can be invaded directly to sansan, small one can be invaded to sansan with kakari
Duykan: k, thx for lesson
]
;W[qf]C[You can even answer with a long knight after White's approach here. The large knight's move induces White to invade at 3-3.]
;AW[qc]
;B[qd]C[Then this move is good for fighting and attacking. Black should separate the white stones and attack. If your style of play is heavy on attacking, this joseki would be a good choice for you. Then you can start fighting early on in the game.]
)(;W[dd]C[

-- chat --
snakesss: not let them have that part cuz it is needed for your plan on the other corner stone?
]
;B[pq]
;W[dp]
;B[qo]
;W[oq]
;B[op]
;W[nq]
;B[pr]
;W[jp]C[There are 5 professional tournament games that started like this. See http://ps.waltheri.net/482199

-- chat --
snakesss: somewhat makes taking the extension a double purpose move
Duykan: m3 feels danger
mark5000: m3 is a good move to start an attack later.
mark5000: For White, White only invested two stones and considers the o3 stones light.
snakesss: lol
snakesss: in every single one of those 5 games, those o3 stones die by the end
snakesss: cool
mark5000: Yes, they're light
Duykan: oh, i see
]
;B[lq]
;W[lp]
;B[mp]
;W[mq]
;B[np]
;W[kq]
;B[lr]
;W[lo]C[

-- chat --
mark5000: For example, this can result.
mark5000: A sacrifice to Black in exchange for thick influence working with 4-4.
snakesss: 11. From move 0: Q16 D16 Q3 D4 R5 P3 P4 O3 Q2 K4 M3 M4 N4 N3 O4 L3 M2 M5 
]
))(;B[pp]
;W[]
;B[nq]C[

-- chat --
snakesss: even this not finished. From move 0: Q4 pass O3 
snakesss: r4 s4 and s5 are attack points iirc
]
)(;B[qd]C[Now let's have a look at the 3-4 point.

-- chat --
tpnZbonek: you would attach in kind of empty board? lets say directly after player encloses? or its rather late game move
mark5000: All of these are opening moves. So yes! It's an opening attachment.
mark5000: As early as move 6 it is playable.
]
(;W[od]C[As we learned from the 4-4 point, this high approach is still possible. This high approach was popular in the past. Recently, however, players are becoming territory-oriented again, and the low approach is played more often.]
)(;W[oc]C[And this knight's move approach is good too.]
)(;W[nd]C[Occasionally, the two-point high approach is played. It focuses on speed. ]
(;B[pf]C[If Black responds here, White can play elsewhere.]
)(;B[oc]C[After this knight's move, it's still possible to play elsewhere.]
(;AB[nc]
)(;AB[od]C[However, this push and the other push make Black very thick. Because of that, this approach isn't played very often.]
)))(;W[nc]C[Finally, here's the long knight's move approach.]
;B[pj]C[Players used to choose this move when Black already had a stone around here.]
(;AE[nc]
;AW[oc]C[In this case, if White approaches like this, Black will pincer and attack White, and it was thought that the resulting battle was likely to be good for Black. We now know that's not really true.]
;AB[mc]C[If Black pincers,]
;W[oe]C[White can just move out and be fine.]
;B[pf]
;W[of]
;B[pg]
;W[og]
;B[ph]
;W[ld]C[By leaning on the black side group, White can build power and come back for a counter attack on the pincer stone. Also, White can reduce the framework at around r17 and r8 later. So the territory is less valuable than it looks. So this low approach is still possible when Black has a star point nearby.]
)(;AB[pc]C[If White plays the large knight's approach, Black often plays diagonal here to secure territory]
;W[kc]C[If Black secures the corner, White extends here. White can easily settle the group.]
)(;AB[lc]C[If Black pincers,]
(;W[pd]C[This attachment is a nice move.]
)(;W[qc]C[This attachment is also nice. You should remember one of these attachments if you plan to play the large knight's approach. I hope to study these variations in depth in a future lesson.

-- chat --
tpnZbonek: whats the deffense now when black 4-3?
snakesss: who plays kobayashi
mark5000: Crosscut
]
;B[pc]
;W[pd]
;B[qb]
;W[rc]C[

-- chat --
tpnZbonek: oh i see. From move 0: R16 O17 Q10 M17 R17 Q17 Q16 R18 S17 
]
)))(;W[qf]C[Some players approach like this. This is usually the wrong idea, however.]
;B[od]LB[oc:A]C[After that, Black will enclose the corner like this or at A. White fails to prevent Black from securing a large corner, so it's bad. The approach is occasionally played though.After that, lBlack will enclose the corner like this or at A. White fails to prevent Black from securing a large corner, so it's bad. The approach is occasionally played though. ]
)(;AB[lc]C[In a Chinese opening, it's hard to approach from the usual direction.]
(;W[oc]C[White can't extend properly now.]
)(;W[qf]C[In this case, this approach is a possible alternative. Just remember that when there are no black stones here, this approach will only help Black.

-- chat --
snakesss: q16 i think
]
))(;AB[od]LB[nc:C]LB[oc:B]LB[nd:D]LB[od:A]C[For enclosures, Black has four choices, labeled ABCD. The one-point enclosure at A secures the corner and accomplishes the same function as BCD. The main difference among them is where the weak point is and how the enclosure works with your existing stones.]
;W[mc]C[For the one-point high enclosure, approaching low is normal. This peeps at the open skirt since Black's stones are both high on the fourth line, and it threatens to slide under into the corner area.]
(;B[kc]C[In response, Black should pincer and attack the lone white stone. This is consistent with Black's high enclosure, which seeks influence for attacking rather than just territory.]
)(;B[nc]C[Black's kick isn't recommended.

-- chat --
snakesss: kick is bad, right? how to secure territory effectively then?
]
;W[md]LB[pc:A]C[White should stand up here, and Black has a weakness at A. 

-- chat --
Duykan: o18 looks fine to secure from black after R16, P16 isn't?
]
;AW[pc]
;B[pd]C[

-- chat --
tpnZbonek: oh!
]
;W[nb]C[This peep links under and steals the territory, so kicking did not defend it at all and was a failure.]
)(;B[nb]LB[ic:B]LB[jc:A]C[The low sweep is a stronger move for the defense idea. But two things: First, White can extend to A or B and settle easily. Second, the aim of the high approach is to take influence, not territory. If Black wanted to take territory, Black could have played one of the two territorial enclosures, and it would be more efficient, conserving a move. Therefore, the correct reply is to pincer. If you wBlack wanted to take territory, Black could have played one of the two territorial enclosures. , and it would be more efficient, sonconserving a move. Therefore, the correct reply is to mpiincer.

-- chat --
snakesss: cool
mark5000: This move is better, yes
benkibejs: Sorry, is there sound?
tpnZbonek: nope
Cement: text lesson
snakesss: w will be open on the second line though, that is worrisome
]
))(;AB[nd]C[This two-point high pincer is similar. It also emphasizes influence and attacking, and lacks emphasis on taking territory in the corner. But it seeks to take a little more than the one-point enclosure.]
;W[lc]C[White can still approach at the open skirt here.]
(;B[jc]C[Black's correct reply is still to pincer, which is consistent with Black's aim to create influence and attack power rather than to take territory.]
)(;B[mc]C[If Black kicks, a similar result can be expected.]
;W[ld]LB[oc:A]C[White should stand in response to the kick, and there is still a weakness at A. Actually, it is worse than before.]
;AW[oc]C[

-- chat --
mark5000: For both high enclosures, remember this move!
mark5000: It makes kicking bad
tpnZbonek: i definetly will :)
]
(;B[od]
;W[pc]
(;B[pd]
;W[mb]C[White can push an extra time and steal more of the corner territory. So Black's plan isn't working here.]
)(;B[mb]C[If Black wants to fight back, this might be a better way to begin.]
;W[pd]
;B[pe]
;W[qe]C[White should push and cut in reply. The outcome of this fighting should be either White lives in the corner, or White sacrifices the corner for development along the side area and digging in to the corner.

-- chat --
Duykan: white in win/win state right here, both is fine for him
mark5000: Yes
]
))(;B[mb]C[What if Black resists here?]
;W[od]C[Moving out is the natural move, and.]
;B[oe]C[

-- chat --
tpnZbonek: what about this? white seems kinda week doesnt it?. From move 0: R16 O16 M17 N17 M16 P17 N18 P16 P15 
]
;W[ne]C[White should cut here.]
;B[pe]
;W[me]C[Black is in a bit of trouble.

-- chat --
tpnZbonek: oh ok i can see black will be lack of liberties
mark5000: Yep
mark5000: Liberties make it hard to fight back.
]
))(;B[nc]
;W[ic]C[

-- chat --
snakesss: bad for black? slow?. From move 0: R16 O16 M17 O17 J17 
mark5000: It's a bit slow
]
;AE[nc]
;AB[nb]C[

-- chat --
mark5000: The Black stone should be here for this idea.
mark5000: It gives better endgame potential at no cost.
snakesss: makes sense
mark5000: This variation is possible.
mark5000: Of course, it is inefficient given that Black could have played at o17 and finished the corner in one move.
]
))(;AB[oc]C[The low enclosures emphasize territory and not fighting. 

-- chat --
mark5000: What is the alternative, though?
]
(;W[nd]C[If White approaches with a shoulder hit, the sequence is one I already talked about above.]
)(;W[qe]C[The modern way to handle this enclosure is to attach and make it over-concentrated.]
;B[pe]C[Black often bends here, and]
;W[qf]
;B[rd]
(;W[qi]LB[nc:A]C[White makes a gain along the side. Attaching again at A later will be annoying for Black and make Black add even more stones to the corner area. Because of this, the enclosure is less popular recently.

-- chat --
Duykan: T13 can kill whole white territory in future, looks bad for white
mark5000: That's possible.
]
)(;W[qj]C[

-- chat --
mark5000: White usually extends an extra point to emphasize that it isn't territory yet.
]
))(;W[qf]C[If White plays too close, the situation is one we already talked about, and it's good for Black.]
)(;W[qj]LB[qh:A]C[If White approaches distantly, Black can extend to A and make significant territory. Because of a lack of good alternatives, attaching is considered the best result in general cases.

-- chat --
mark5000: Duykan, I'd recommend trying this enclosure out in your games.
mark5000: You might be adept with it compared to the other enclosures.
]
))(;W[qp]C[

-- chat --
Duykan: thx
]
)(;AB[nc]C[Finally, the long knight's enclosure makes a wider area than the small knight's move enclosure, and it's low on the third line, forming a complete territory.

-- chat --
snakesss: what would be the aim of playing that on move 6?
snakesss: like developing quickly somewhere before doing smt else?
mark5000: Back to this
mark5000: There are two weaknesses in this shape
tpnZbonek: whats the continuation? simply connection for b and connection or tiger mouth for w?
]
(;W[oe]C[The simpler of the two ways to handle this enclosure is from above, threatening to jump down and separate the stones.]
;B[pd]LB[md:B]LB[qf:A]C[Black should answer with iron pillar, keeping the connection between stones alive. This sequence is complete for now. White can drop down to A or up to B later, when White gains potential in either direction.

-- chat --
snakesss: dro pulled this on me yesterday
snakesss: i had no idea what to do
snakesss: so i tenuki'd xD
tpnZbonek: snakess xdd best reaction every time
]
)(;W[pd]C[More commonly, attaching here is the best direct answer to the long knight's enclosure.

-- chat --
Duykan: oh, this is common alpha-go answer to this case
]
;B[pc]C[If Black defends by bending inward here,]
;W[qe]C[White answers with a counter hane on the outside. Except for the attachments, this is a fairly typical territory-for-influence exchange.

-- chat --
Duykan: he rly likes q16 for some reason
mark5000: AlphaGo likes it, yeah. But pro players were actually playing it before 2018.
mark5000: In 2017, before AG games were out with the move, it was experimental with pros.
mark5000: Now it is firmly established as joseki.
mark5000: This is as far as I dare to go with a beginner-oriented lecture.
]
;B[od]
;W[pe]
;B[rd]LB[oe:B]LB[nf:C]LB[pi:A]C[This is the normal continuation. Extend to A or push up with B/C.

-- chat --
Duykan: thx 
]
)))(;B[pq]
;W[pp]C[

-- chat --
FrostedNuke: 12. From move 0: Q3 Q4 
]
))