Game Finished

Move 89

dispersed[?]

1 capture

ldlework[7k]

38 captures

+ 5.5

Unranked

Rules: Japanese

Review by: ldlework[4k]

Move 1

April 12, 2020

[19:07] ldlework[5k]: The empty spaces that a stone touches is called its "Liberties"

[19:07] ldlework[5k]: A stone always needs at least one liberty

Move 1 + 10

[19:08] ldlework[5k]: When a stone only has one liberty, it's called atari

[19:08] ldlework[5k]: if you don't do anything white can capture the stone

Move 1 + 11

[19:08] ldlework[5k]: like that

Move 1

[19:08] ldlework[5k]: OK

[19:08] ldlework[5k]: The empty spaces that a stone touches is called its "Liberties"

[19:08] ldlework[5k]: When all of a stone's liberties are gone, it is captured

Move 1 + 2

[19:09] dispersed[?]: ok

Move 1 + 6

[19:09] dispersed[?]: atari means it's threatened I guess

[19:09] ldlework[5k]: When it only has one, it's called atari

[19:09] ldlework[5k]: Yeah

[19:09] ldlework[5k]: You wanna do something about this

[19:09] ldlework[5k]: Any idea what black can do?

[19:09] dispersed[?]: block that.. nothing else?

[19:09] ldlework[5k]: Well blocking the spot white needs to go is one way to look at it

[19:10] ldlework[5k]: But another way to look at it, is that stones directly connected actually form a Group

[19:10] ldlework[5k]: which can be treated as one stone

Move 1 + 8

[19:10] ldlework[5k]: Now there are three liberties

[19:10] ldlework[5k]: White will need more stones to capture

Move 1 + 9

[19:10] ldlework[5k]: but each stone white puts

[19:10] ldlework[5k]: black can grow more

Move 1 + 12

[19:10] ldlework[5k]: Understand?

[19:10] dispersed[?]: sure.. sort of expand to escape

[19:10] dispersed[?]: bucket fill .p

[19:10] ldlework[5k]: Yeah it's called an extension

Move 1 + 4

[19:11] ldlework[5k]: When a stone has two liberties, it's called a shortage

[19:11] ldlework[5k]: Because if you don't do anything, the opponent can turn it into an atari

Move 1 + 4

[19:11] ldlework[5k]: Make sense?

[19:11] dispersed[?]: Ok. Atari = 1, shortage = 2.

[19:11] ldlework[5k]: ya

Move 0 + 6

[19:12] ldlework[5k]: how many stones does it take to capture E5?

[19:12] dispersed[?]: 3

Move 0 + 12

[19:12] dispersed[?]: oh r5

[19:12] dispersed[?]: e5

[19:12] dispersed[?]: sorry wasn't paying attention, so 4 .p

Move 0 + 14

[19:12] ldlework[5k]: correct

[19:12] ldlework[5k]: how about J5

[19:12] dispersed[?]: that's the 3 one

Move 0 + 20

[19:12] ldlework[5k]: and J1?

[19:12] dispersed[?]: 2

Move 0 + 24

[19:13] dispersed[?]: because they lack liberties

[19:13] ldlework[5k]: So the lesson here, is that there is an order to the areas of the board, with regards to efficiency

[19:13] dispersed[?]: if the board would wrap, it would be more symmetric

[19:13] ldlework[5k]: And it works not just for capture

[19:13] ldlework[5k]: but territory

Move 0 + 30

[19:13] ldlework[5k]: see?

[19:13] ldlework[5k]: This is why players will start in the corners, then along the walls, only then into the middle

[19:14] dispersed[?]: yeah, it takes less to 'own' the walls.. ok yeah I was thinking that last game

[19:14] ldlework[5k]: Yeah!

[19:14] ldlework[5k]: OK

[19:14] dispersed[?]: not strategically

Move 0

[19:14] ldlework[5k]: OK we should play in the corners

[19:14] ldlework[5k]: fine

[19:14] ldlework[5k]: but where?

Move 0 + 8

[19:14] ldlework[5k]: assuming each stone was the only stone on the board

[19:14] dispersed[?]: well the black dots are there for a reason..

[19:14] ldlework[5k]: which corner do you like best?

[19:14] dispersed[?]: hmh

[19:14] ldlework[5k]: heh

[19:15] ldlework[5k]: What's the problem with A9?

[19:15] dispersed[?]: maybe intuituively H8 would be nice, but then again the G3 might be

[19:15] dispersed[?]: A9 needs only 2 stones to capture

[19:15] dispersed[?]: so harder to protect

[19:15] ldlework[5k]: Right, it's in a shortage

[19:15] ldlework[5k]: Any other problems?

[19:15] ldlework[5k]: Also can you see how Go is like Philosophy?

[19:16] dispersed[?]: you can't extend to many directions

[19:16] dispersed[?]: heh

[19:16] ldlework[5k]: It's not taking any territory!

[19:16] dispersed[?]: isn't it taking that 1 square?

[19:16] ldlework[5k]: No territory is empty space that only you surround.

[19:16] dispersed[?]: oh ok

[19:16] dispersed[?]: yeah I was never sure how it's counted

[19:16] ldlework[5k]: Here's the simple algo

[19:16] ldlework[5k]: start from any empty space

[19:17] ldlework[5k]: moving only orthogonally, can you reach only 1 color of stones?

[19:17] ldlework[5k]: if so, you are territory for that color

[19:17] dispersed[?]: true not hard to understand, just not sure how it's scored

[19:17] ldlework[5k]: This means territory only REALLY exists when it is fully walled off

[19:17] ldlework[5k]: But we talk about stones that are not fully walling off territory as "aiming at" territory

[19:17] ldlework[5k]: H8 is aiming at aleast a few points

[19:18] ldlework[5k]: Compare to D4

[19:18] dispersed[?]: what if you had A8 and B9 as well?

[19:18] ldlework[5k]: it still wouldn't be surrounding any empty spots

[19:18] dispersed[?]: is that worth 0 or is that one stone 'eaten'

Move 0 + 10

[19:18] ldlework[5k]: by placing a white stone on the board

[19:18] ldlework[5k]: you can see how no spots on the board

[19:18] ldlework[5k]: exclusively reach only black stones

[19:18] ldlework[5k]: every spot on the board can reach this white stone

[19:18] dispersed[?]: sure

[19:19] ldlework[5k]: in the case of H8, black will be able to "seal up" easily

[19:19] ldlework[5k]: Since they are so close

[19:19] ldlework[5k]: So we think of the top right spaces as black's territory

[19:19] ldlework[5k]: it's effectively his

[19:19] ldlework[5k]: something strange would have to happen for black to not be able to defend such a tiny spot

[19:19] ldlework[5k]: But the opposite is true of D4

[19:19] ldlework[5k]: D4 aims at way too much

Move 0 + 12

[19:20] ldlework[5k]: white has enough room to invade underneath

[19:20] ldlework[5k]: so while D4 is hopeful for a big corner, they will need more than just one stone to make it happen

[19:20] ldlework[5k]: G3 is a nice balance

[19:20] dispersed[?]: hence the black spot

[19:20] ldlework[5k]: yep

[19:20] ldlework[5k]: called the "star points"

[19:20] dispersed[?]: maximal chaos

Move 0 + 24

[19:21] ldlework[5k]: let's look at the A group

[19:21] ldlework[5k]: it's on the second line

[19:21] ldlework[5k]: making 1 point of territory per stone

[19:21] ldlework[5k]: it's not very efficient

[19:21] ldlework[5k]: but it is very secure

[19:21] ldlework[5k]: any white invasion underneath is practical suicide

[19:21] ldlework[5k]: make sense?

[19:21] dispersed[?]: y

[19:21] ldlework[5k]: look at the C group

[19:21] dispersed[?]: ez

[19:22] ldlework[5k]: It's on the 4th line

[19:22] ldlework[5k]: making 3 whole points per stone

[19:22] ldlework[5k]: very nice

[19:22] ldlework[5k]: but it's very dangerous

[19:22] ldlework[5k]: an invasion underneath is possible in some cases

[19:22] ldlework[5k]: B is a very nice balance

[19:22] ldlework[5k]: on the third line, it takes 2 points per stone

[19:22] ldlework[5k]: and invasion is much harder

[19:22] ldlework[5k]: The lessons here are that, at least in the opening, a balance of 3rd and 4th line stone is best

[19:23] ldlework[5k]: we don't wanna play on the wall and take nothing

[19:23] ldlework[5k]: we don't wanna play in the middle, and not really be securing territory

[19:23] ldlework[5k]: This is why E5 is not a good opening move

[19:23] dispersed[?]: yeah, it would be like micromanagement, or no management at all

[19:23] ldlework[5k]: it violates all we've learned

[19:23] ldlework[5k]: the order of the board areas

[19:23] ldlework[5k]: and the 3rd/4th line balance

[19:23] ldlework[5k]: one last thing to learn

[19:23] ldlework[5k]: before our second game

[19:23] ldlework[5k]: you remember Bugs Bunny and Dafy Duck right?

[19:24] dispersed[?]: lol, sure

[19:24] dispersed[?]: daffy

Move 0

[19:24] ldlework[5k]: imagine they each just bought a new house

[19:24] ldlework[5k]: they come home for the first time, brew some coffee

[19:24] ldlework[5k]: then step out into their back porch at the same exact time

[19:24] ldlework[5k]: just to see the other across the yard in the other house

[19:24] ldlework[5k]: they realize they're gonna have to share the same yardage with each other

[19:24] ldlework[5k]: $*!% that they think

[19:24] ldlework[5k]: they run to their garage

[19:25] ldlework[5k]: and start grabbing plywood and nails and such

[19:25] ldlework[5k]: they frantically run around driving posts into the ground

[19:25] ldlework[5k]: "My yard!"

[19:25] ldlework[5k]: *slam*

[19:25] ldlework[5k]: "No, MY yard!"

[19:25] ldlework[5k]: this goes on and on

[19:25] ldlework[5k]: let's see

Move 0 + 6

[19:25] ldlework[5k]: Who has the better strategy?

[19:25] dispersed[?]: daffy

[19:25] ldlework[5k]: Why?

[19:26] dispersed[?]: it's balanced and the stones work kinda synergistically

[19:26] ldlework[5k]: What do you mean by balanced?

[19:26] dispersed[?]: just balanced distance from the walls

[19:26] ldlework[5k]: OK so daffy is gonna get some points

[19:26] ldlework[5k]: What don't you like about Bugs' strategy?

[19:27] dispersed[?]: he's not going to capture any of daffy, and he has to distribute attention

[19:27] dispersed[?]: so he can't build anything strong without daffy keeping up I suppose

Move 0 + 10

[19:27] ldlework[5k]: Who's doing better?

[19:27] dispersed[?]: daffy built the wrong way :D maybe bugs

[19:28] ldlework[5k]: Not exactly

[19:28] dispersed[?]: yeah ok daffy kinda still keeping it balanced

[19:28] dispersed[?]: but only because bugs lets him ,p

[19:28] ldlework[5k]: Bugs is taking much more than dafy

Move 0 + 16

[19:29] ldlework[5k]: OK the point here is

[19:29] ldlework[5k]: Bugs is playing fast and loose

[19:29] ldlework[5k]: They are aiming at more territory

[19:29] ldlework[5k]: But playing with weaker formations

[19:29] ldlework[5k]: Where as Dafy is moving too slow

[19:29] ldlework[5k]: Not aiming at enough

[19:29] ldlework[5k]: Even though their structures are impenetrable

[19:29] ldlework[5k]: This would've been a better example on a larger board

[19:30] dispersed[?]: ic yeah

[19:30] ldlework[5k]: But the lesson is you want a balance between the two strategies here

[19:30] ldlework[5k]: OK let's play a new game

[19:30] ldlework[5k]: Any questions tho?

[19:30] dispersed[?]: Which one is your favorite character of those?

[19:30] ldlework[5k]: Bugs, easy

[19:30] dispersed[?]: :) ok

[19:30] dispersed[?]: let's play