Shapes to remember (SDK level)

Knotwilg · Post by **Knotwilg** » Wed Apr 06, 2022 1:49 pm

Click Here To Show Diagram Code: [go]$$Bc Black to play $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . 8 7 3 5 . . . . . | $$ | . . X O . . . O d . 6 X W 4 . X O . . | $$ | . . X O . . . . . c X O 1 . . X O . . | $$ | . X O O . . . . . . b 2 9 . . X . . . | $$ | . X . . . . . . . . e a 0 . . . . O . | $$ | . . X . O X . . . . . . . . O . O . . | $$ | . . . X O . . . . . . . . . . . . . . | $$ | . . O X O . X . . . . . . . . . . . . | $$ | . . . X O . . . . , . . X O O O . . . | $$ | . . X . O . . . . . O O O X X X . . . | $$ | . . . O . X . . . . O X X . . . . . . | $$ | . X O . . . . . . . . . . X . . . . . | $$ | . X . X . . . . . . . X . . . . O . . | $$ | . . . X . . . . . O . . . . . . . . . | $$ | . . X , O . . . . O X . . O O O . . . | $$ | . . . X O . . O O X X . X X O X O O . | $$ | . . . . . . . . . O X . . . X X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Anything allowing White to solidly connect looks wrong, so ...

Not that I read it but White can't hane at

because of the ladder. So probably

is better as a lateral stretch.

jlt · Post by **jlt** » Thu Apr 07, 2022 7:22 am

Hint

Katago's main line

Click Here To Show Diagram Code: [go]$$Bc Katago's main line (11 at a and 12 at b) $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . 3 . 1 . . . . . . | $$ | . . X O . . . O . . 7 X O a . X O . . | $$ | . . X O . . . . b 6 X O 2 . . X O . . | $$ | . X O O . . . . 9 5 4 . . . . X . . . | $$ | . X . . . . . . . 8 0 . . . . . . O . | $$ | . . X . O X . . . . . . . . O . O . . | $$ | . . . X O . . . . . . . . . . . . . . | $$ | . . O X O . X . . . . . . . . . . . . | $$ | . . . X O . . . . , . . X O O O . . . | $$ | . . X . O . . . . . O O O X X X . . . | $$ | . . . O . X . . . . O X X . . . . . . | $$ | . X O . . . . . . . . . . X . . . . . | $$ | . X . X . . . . . . . X . . . . O . . | $$ | . . . X . . . . . O . . . . . . . . . | $$ | . . X , O . . . . O X . . O O O . . . | $$ | . . . X O . . O O X X . X X O X O O . | $$ | . . . . . . . . . O X . . . X X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

The triple hane

is not natural for me but it works, even if White solidly connects, White can't disconnect the two black groups. The fate of the stones

and

is not clear, they may be sacrificed.

Further comments

If Black cuts first, Katago's main line is the following, and is 3 points worse:

Click Here To Show Diagram Code: [go]$$Bc Black cuts first $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . 6 5 . . . . . . | $$ | . . X O . . . O . . 4 X O 3 . X O . . | $$ | . . X O . . . . . , X O 1 . . X O . . | $$ | . X O O . . . . . . . 2 . . . X . . . | $$ | . X . . . . . . . . . . . . . . . O . | $$ | . . X . O X . . . . . . . . O . O . . | $$ | . . . X O . . . . . . . . . . . . . . | $$ | . . O X O . X . . . . . . . . . . . . | $$ | . . . X O . . . . , . . X O O O . . . | $$ | . . X . O . . . . . O O O X X X . . . | $$ | . . . O . X . . . . O X X . . . . . . | $$ | . X O . . . . . . . . . . X . . . . . | $$ | . X . X . . . . . . . X . . . . O . . | $$ | . . . X . . . . . O . . . . . . . . . | $$ | . . X , O . . . . O X . . O O O . . . | $$ | . . . X O . . O O X X . X X O X O O . | $$ | . . . . . . . . . O X . . . X X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Knotwilg's idea is 7 points worse than the main variation.

Click Here To Show Diagram Code: [go]$$Bc Other variation $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . 7 3 5 . . . . . | $$ | . . X O . . . O . 8 6 X O 4 . X O . . | $$ | . . X O . . . . . , X O 1 9 . X O . . | $$ | . X O O . . . . . . . 2 . . . X . . . | $$ | . X . . . . . . . . . . . . . . . O . | $$ | . . X . O X . . . . . . . . O . O . . | $$ | . . . X O . . . . . . . . . . . . . . | $$ | . . O X O . X . . . . . . . . . . . . | $$ | . . . X O . . . . , . . X O O O . . . | $$ | . . X . O . . . . . O O O X X X . . . | $$ | . . . O . X . . . . O X X . . . . . . | $$ | . X O . . . . . . . . . . X . . . . . | $$ | . X . X . . . . . . . X . . . . O . . | $$ | . . . X . . . . . O . . . . . . . . . | $$ | . . X , O . . . . O X . . O O O . . . | $$ | . . . X O . . O O X X . X X O X O O . | $$ | . . . . . . . . . O X . . . X X X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Note that Black finishes in gote.

Knotwilg · Post by **Knotwilg** » Thu Apr 07, 2022 9:43 am

Your main line has two 6's and 7's.

jlt · Post by **jlt** » Thu Apr 07, 2022 10:05 am

I corrected the diagram.

jlt · Post by **jlt** » Wed Apr 27, 2022 12:09 pm

Position #68, Black to play. Find the next few moves.

Click Here To Show Diagram Code: [go]$$Bc Black to play $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X X . . . . . . . . . . X O . . | $$ | . . O X O X X . . . . . . . . X O . . | $$ | . . . O O O X . . , . . . . . X O . . | $$ | . . . . . . O X . . . . . W X O O . . | $$ | . . O . . . O X . . . . . . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . O . . . . . . . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

lightvector · Post by **lightvector** » Wed Apr 27, 2022 2:59 pm

This position feels a bit unusual, because it seems Black may have missed the typical joseki move in the upper right? Unless there is a different sequence that leads to that result.

In the joseki I know that results in a shape like the upper right, normally Black plays a hane at R18 instead of merely extending at Q18. White blocks, Black connects, then White needs to add another move to not die, which is usually at S13.

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X X . . . . . . . . . . B B W . | $$ | . . O X O X X . . . . . . . . X O . . | $$ | . . . O O O X . . , . . . . . X O . . | $$ | . . . . . . O X . . . . . . X O O . . | $$ | . . O . . . O X . . . . . . . X O . . | $$ | . . . . . . . . . . . . . . . X . W . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . O . . . . . . . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Although I guess it's a little uncommon regardless that white still gets to play this clamp much later, as it is common for black to add a defense here to stop the clamp.

Anyways, it may be instructive to compare and contrast how Black should handle White's clamp in the perhaps-more-standard shape, as follows:

Click Here To Show Diagram Code: [go]$$Bc Black to play here, as a contrast/complement to jlt's position $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X X . . . . . . . . . . X X O . | $$ | . . O X O X X . . . . . . . . X O . . | $$ | . . . O O O X . . , . . . . . X O . . | $$ | . . . . . . O X . . . . . W X O O . . | $$ | . . O . . . O X . . . . . . . X O . . | $$ | . . . . . . . . . . . . . . . X . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . O . . . . . . . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

jlt · Post by **jlt** » Thu Apr 28, 2022 12:58 pm

Indeed I (Black) missed the hane-connect (R18 - S18 - Q18), instead I played Q18 and White answered with R18.

In the problem position, Katago expects this

Click Here To Show Diagram Code: [go]$$Bc answer $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . 8 . . . | $$ | . . X X X . . . . . . . . 7 6 X O . . | $$ | . . O X O X X . . . . . . 5 4 X O . . | $$ | . . . O O O X . . , . . . 3 2 X O . . | $$ | . . . . . . O X . . . . 9 O X O O . . | $$ | . . O . . . O X . . . . . . 1 X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . O . . . . . . . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

so Black sacrifices three stones and makes a strong, connected group.

~~Lightvector's position doesn't exist since Black has made an extra move,~~ so I'll remove a few stones

Click Here To Show Diagram Code: [go]$$Bc other position $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . 3 . | $$ | . . X X X . . . . . . . . 0 . X X O 4 | $$ | . . O X O X X . . . . . 5 2 . X O . . | $$ | . . . O O O . . . , . . . . a X O . . | $$ | . . . . . . . . . . . . . O X O O . . | $$ | . . O . . . . . . . . . . . 1 X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . . . . . . X 6 . | $$ | . . . . . . . . . . . . . . . . 7 8 . | $$ | . . . , . . . . . , . . . . . O 9 . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . O . . . . . . . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

lightvector · Post by **lightvector** » Fri Apr 29, 2022 8:29 am

Yep,

jlt · Post by **jlt** » Fri Apr 29, 2022 12:30 pm

Oops sorry, I didn't read your preceding diagram carefully.

Interestingly, Katago expects yet another variation

Click Here To Show Diagram Code: [go]$$Bc Lightvector's position $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . X X X . . . . . . a 4 3 8 X X O . | $$ | . . O X O X X . . . . 7 5 2 . X O . . | $$ | . . . O O O X . . , . . 6 0 9 X O . . | $$ | . . . . . . O X . . . . . O X O O . . | $$ | . . O . . . O X . . . . . . 1 X O . . | $$ | . . . . . . . . . . . . . . . X . O . | $$ | . . . . . . . . . . . . . . . . X . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . , . . . . . , . . . . . O . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O O . . | $$ | . . . . . . . . . . . . . . . O X . . | $$ | . . . , . . . . . , . . . . . , X . . | $$ | . . O . . . . . . . . . . X . X . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

and then Black plays a. I can't say I really understand why Black O18 is preferred in one variation and N17 in another.

jlt · Post by **jlt** » Mon May 16, 2022 2:16 am

Position #69, another elementary shape that I missed. Not really a big mistake but an illustration of the fact that some simple moves are still missing in my brain policy network. Black to play.

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . X X O . O . | $$ | . . . X . . . . . , . . . . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . . . . . . . . . . . X X X . . O . . | $$ | . . X O . . . . . . . . O O O . . . . | $$ | . X W X X . . X . . . . . . . . . . . | $$ | X O O . X . . . . . . . . . . . . . . | $$ | X X O O O X . O . , . . . . . , . . . | $$ | . O . . . . O O X . . X O . . . O . . | $$ | . O O . . O O X . X X O O O . . . . . | $$ | . X . . O . X . X . X O O X . . . . . | $$ | . . X X X . . . . X O X X X . O O . . | $$ | . X O O . . . . . X O O O X . O X . . | $$ | . . X O . O X X . , . O X O O , X . . | $$ | . . X O . X O O X X . O X X X X . . . | $$ | . . X X O O . . O O . O . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

Answer:

Click Here To Show Diagram Code: [go]$$Bc this is slightly better than the solid connection $$ --------------------------------------- $$ | . . . . . . . . . . . . . . . . . . . | $$ | . . . . . . . . . . . . . . . O . . . | $$ | . . . . . . . . . . . . . X X O . O . | $$ | . . . X . . . . . , . . . . . X O . . | $$ | . . . . . . . . . . . . . . . X . . . | $$ | . 1 . . . . . . . . . X X X . . O . . | $$ | . . X O . . . . . . . . O O O . . . . | $$ | . X W X X . . X . . . . . . . . . . . | $$ | X O O . X . . . . . . . . . . . . . . | $$ | X X O O O X . O . , . . . . . , . . . | $$ | . O . . . . O O X . . X O . . . O . . | $$ | . O O . . O O X . X X O O O . . . . . | $$ | . X . . O . X . X . X O O X . . . . . | $$ | . . X X X . . . . X O X X X . O O . . | $$ | . X O O . . . . . X O O O X . O X . . | $$ | . . X O . O X X . , . O X O O , X . . | $$ | . . X O . X O O X X . O X X X X . . . | $$ | . . X X O O . . O O . O . . . . . . . | $$ | . . . . . . . . . . . . . . . . . . . | $$ ---------------------------------------[/go]

jlt · Post by **jlt** » Sat May 28, 2022 2:59 am

Position #70, Black to play a good endgame move.

Click Here To Show Diagram Code: [go]$$Bc Black to play $$ --------------------------------------- $$ | . . . . . . . . . O X . X . . . . . . | $$ | . . . . O . . O X X O X . X . . . . . | $$ | . . . O X O O O O X O O X X . . X X . | $$ | . . O , X . . O X O O O . . . X . O . | $$ | . . X X . . X X X X . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . O . . O . . . . . . . . . . . . . | $$ | . . . O . . O . X X X . X . . . . . . | $$ | . O O X X . . O O O O X X O . . O . . | $$ | . . X O X O . . . , . O X . . , . . . | $$ | . . X . X O . X O . . O X . . O . . . | $$ | . . . X X X X X O O O X X O . . . . . | $$ | . . . X O O X O . . X X . . O . O . . | $$ | . . X O . . O . O . . . . O X X O . . | $$ | . X O O . . . . . . . . . . X O X . . | $$ | . X X O O . . . . , . . . . . , X . . | $$ | . X . X O . O . . O X X . . . X . . . | $$ | . . X . . . . . O . O X . X . . . . . | $$ | . . . . . . . . . . O O X . . . . . . | $$ ---------------------------------------[/go]

Akura · Post by **Akura** » Sat May 28, 2022 4:54 am

First, my eyes were drawn to a, but then I thought that b may be good?

Click Here To Show Diagram Code: [go]$$Bc Black to play $$ --------------------------------------- $$ | . . . . . . . . . O X . X . . . . . . | $$ | . . . . O . . O X X O X . X . . . . . | $$ | . . b O X O O O O X O O X X . . X X . | $$ | . . O , X . . O X O O O . . . X . O . | $$ | . . X X . . X X X X . . . . . . . a . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . O . . O . . . . . . . . . . . . . | $$ | . . . O . . O . X X X . X . . . . . . | $$ | . O O X X . . O O O O X X O . . O . . | $$ | . . X O X O . . . , . O X . . , . . . | $$ | . . X . X O . X O . . O X . . O . . . | $$ | . . . X X X X X O O O X X O . . . . . | $$ | . . . X O O X O . . X X . . O . O . . | $$ | . . X O . . O . O . . . . O X X O . . | $$ | . X O O . . . . . . . . . . X O X . . | $$ | . X X O O . . . . , . . . . . , X . . | $$ | . X . X O . O . . O X X . . . X . . . | $$ | . . X . . . . . O . O X . X . . . . . | $$ | . . . . . . . . . . O O X . . . . . . | $$ ---------------------------------------[/go]

jlt · Post by **jlt** » Sat May 28, 2022 10:53 am

EricBackus · Post by **EricBackus** » Sun May 29, 2022 4:03 pm

What about trying to cut off the D12 white stones, by playing:

Click Here To Show Diagram Code: [go]$$Bc Black to play $$ --------------------------------------- $$ | . . . . . . . . . O X . X . . . . . . | $$ | . . . . O . . O X X O X . X . . . . . | $$ | . . . O X O O O O X O O X X . . X X . | $$ | . . O , X . . O X O O O . . . X . O . | $$ | . . X X . . X X X X . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . O . . O . . . . . . . . . . . . . | $$ | . . . O . 1 O . X X X . X . . . . . . | $$ | . O O X X . . O O O O X X O . . O . . | $$ | . . X O X O . . . , . O X . . , . . . | $$ | . . X . X O . X O . . O X . . O . . . | $$ | . . . X X X X X O O O X X O . . . . . | $$ | . . . X O O X O . . X X . . O . O . . | $$ | . . X O . . O . O . . . . O X X O . . | $$ | . X O O . . . . . . . . . . X O X . . | $$ | . X X O O . . . . , . . . . . , X . . | $$ | . X . X O . O . . O X X . . . X . . . | $$ | . . X . . . . . O . O X . X . . . . . | $$ | . . . . . . . . . . O O X . . . . . . | $$ ---------------------------------------[/go]

I suppose it must not work, but in my first glance at it, it looked promising...

jlt · Post by **jlt** » Sun May 29, 2022 9:52 pm

From my kyu perspective, White would just sacrifice two stones, which is not so big:

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . O X . X . . . . . . | $$ | . . . . O . . O X X O X . X . . . . . | $$ | . . . O X O O O O X O O X X . . X X . | $$ | . . O , X . . O X O O O . . . X . O . | $$ | . . X X . . X X X X . . . . . . . . . | $$ | . . . . . . . . . . . . . . . . O . . | $$ | . . O . . O 4 . . . . . . . . . . . . | $$ | . . . O 2 1 O . X X X . X . . . . . . | $$ | . O O X X 3 . O O O O X X O . . O . . | $$ | . . X O X O . . . , . O X . . , . . . | $$ | . . X . X O . X O . . O X . . O . . . |[/go]

but the AI thinks it's a wrong sequence for White because the weakness C17 is still there, so the following is a much better move

Click Here To Show Diagram Code: [go]$$Bc $$ --------------------------------------- $$ | . . . . . . . . . O X . X . . . . . . | $$ | . . . . O . . O X X O X . X . . . . . | $$ | . . . O X O O O O X O O X X . . X X . | $$ | . 4 O , X . . O X O O O . . . X . O . | $$ | . 2 X X . . X X X X . . . . . . . . . | $$ | 7 3 5 . 8 . . . . . . . . . . . O . . | $$ | . 6 O . 0 O . . . . . . . . . . . . . | $$ | . . . O 9 1 O . X X X . X . . . . . . | $$ | . O O X X . . O O O O X X O . . O . . | $$ | . . X O X O . . . , . O X . . , . . . | $$ | . . X . X O . X O . . O X . . O . . . |[/go]

Black cannot cut immediately because White threatens to kill A14 so...

Click Here To Show Diagram Code: [go]$$Bcm11 $$ --------------------------------------- $$ | . . . . . . . . . O X . X . . . . . . | $$ | . . 2 . O . . O X X O X . X . . . . . | $$ | . . . O X O O O O X O O X X . . X X . | $$ | . O O 1 X . . O X O O O . . . X . O . | $$ | . O X X . 3 X X X X . . . . . . . . . | $$ | X X X . O . . . . . . . . . . . O . . | $$ | . O O . O O . 4 . . . . . . . . . . . | $$ | . . . O X X O . X X X . X . . . . . . | $$ | . O O X X . . O O O O X X O . . O . . | $$ | . . X O X W . . . , . O X . . , . . . | $$ | . . X . X W . X O . . O X . . O . . . |[/go]

Now, Black could capture the two marked stones but it's not very big at the moment.

Life In 19x19

Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)

Re: Shapes to remember (SDK level)