Page 21 of 51

Re: Big Brother Malkovich # 1 (continued)

Posted: Fri Aug 27, 2010 1:56 pm
by shapenaji
Approved
Really the only move to play, anything else makes the previous move meaningless

Re: Big Brother Malkovich # 1 (continued)

Posted: Sat Aug 28, 2010 12:57 am
by Gresil
Click Here To Show Diagram Code
[go]$$Bc 75A W35 B 34
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X 1 . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X . O . . X . . . |
$$ | . . O X . . X . O . . . X O . . . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


The only other moves I can imagine, Q18 and S16, don't seem to do any good. As for this move, I can only read this far:

Click Here To Show Diagram Code
[go]$$Bc 75A W35 B 34
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X 1 . . |
$$ | . X X O O X O X . X . O . . O O X 4 . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X . O . . X 2 . . |
$$ | . . O X . . X . O . . . X O . . 3 . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Watching the Q13 cut and keeping the top right alive will be challenging. I suppose :b3: could be somewhere else, but I'll consider that at my next move.

Re: Big Brother Malkovich # 1 (continued)

Posted: Sat Aug 28, 2010 12:00 pm
by daniel_the_smith
Approved.

Actually I don't like this move at all, but I can't think of a better one.

I almost changed it to this, but this doesn't help a whole lot and gives white a free atari. We're going to have a big mess.

Click Here To Show Diagram Code
[go]$$Bc 75A W35 B 34
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X . 1 . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X . O . . X . . . |
$$ | . . O X . . X . O . . . X O . . . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |[/go]


Gresil's expected continuation isn't right.

Click Here To Show Diagram Code
[go]$$Bc 75A W35 B 34
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X 1 . . |
$$ | . X X O O X O X . X . O . . O O X 4 . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X . O . . X 2 . . |
$$ | . . O X . . X . O . . . X O . . 3 5 . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |[/go]


4 should be at 5, clearly. Maybe 3 should just extend. I think Violence will end up correcting a move soon. :-?

Q18 is nonsensical, I don't know why Gresil considered it. :)

Re: Big Brother Malkovich # 1 (continued)

Posted: Sun Aug 29, 2010 10:37 pm
by Violence
Approved.

Re: Big Brother Malkovich # 1 (continued)

Posted: Mon Aug 30, 2010 7:18 am
by Chew Terr
Click Here To Show Diagram Code
[go]$$Bc 75A W35 B 34
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X . O . . X . . . |
$$ | . . O X . . X . O . . . X O . W . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I am not at all certain that this is correct. However, this looks like the best we can get out of it. This links back to the group, to the best of my reading, and threatens nasty followups, making it sente. This should result in helping our group live on its own.

Click Here To Show Diagram Code
[go]$$Bc 75A W35 B 34
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X 1 . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O a . |
$$ | . O O X . . . O . . X . O . . X b . . |
$$ | . . O X . . X . O . . . X O . . . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

I considered 'a' and 'b', but they do not seem to quite work on their own. If they don't work on their own, they're just forcing black to extend their group downwards, better sealing us in. 'a' is tempting, but I can't quite tell if i tbuys us anything.

Re: Big Brother Malkovich # 1 (continued)

Posted: Mon Aug 30, 2010 9:06 am
by Joaz Banbeck
Great move! I approve.

The whole point of this tesuji was to force black to go one line lower.
Now if we run southward together, any territory that black gets is third line territory, not fourth. Also, if both of our groups have to run, they are one stone further apart, and splitting attacks are slightly less dangerous.

Re: Big Brother Malkovich # 1 (continued)

Posted: Mon Aug 30, 2010 3:17 pm
by shapenaji
Approved

Re: Big Brother Malkovich # 1 (continued)

Posted: Tue Aug 31, 2010 12:57 pm
by Gresil
Click Here To Show Diagram Code
[go]$$Bc 75A W35 B 34
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X . O . . X 1 . . |
$$ | . . O X . . X . O . . . X O . O . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


I see no reason to consider other moves. This secures the corner and gets under white's skirt.

Re: Big Brother Malkovich # 1 (continued)

Posted: Tue Aug 31, 2010 1:01 pm
by daniel_the_smith
Approved
Not sure why Joaz likes that white move so much. Now black's corner has no aji and we have a weak group between two opponent's weak groups. I think that favors us.

Re: Big Brother Malkovich # 1 (continued)

Posted: Thu Sep 02, 2010 3:07 pm
by Violence
Approved.

Feels aji keshi.

Re: Big Brother Malkovich # 1 (continued)

Posted: Thu Sep 02, 2010 3:28 pm
by Chew Terr
Click Here To Show Diagram Code
[go]$$Bc 76A W35 B 34
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X . O . W X X . . |
$$ | . . O X . . X . O . . . X O . O . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

This seems the logical followup to the previous move. It prevents some nastiness from a potential cut at O14, stabilizes our group a little more, and reduces the liberties on Q14. If black tenukis, we can enclose their weak group, potentially killing it (or making it try to live on the top). Therefore, I expect black will play another splitting play. P15 is becoming a helpful move for us, and it makes R13 sente. S15 could eventually become useful for us in the future, to get more plays on the right side. The alternative to this play is to ignore the threat of the cut and extend southwards, sacrificing N14 if we are cut. However, I think that we are safer this way, though the attack will continue.

Re: Big Brother Malkovich # 1 (continued)

Posted: Sun Sep 05, 2010 2:40 pm
by Joaz Banbeck
I very slightly disapprove - just enough to change it.

Click Here To Show Diagram Code
[go]$$Bc 76B W35 B 36
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X W O . C X X . . |
$$ | . . O X . . X . O . . . X O . O . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


While younger brother's move is not bad, it is slow. I don't think that we have time for it.
The cut at O14 is indeed a concern, but we can fix that with the dual-sente move of M14.

If we just passively protect, they can make good shape in sente and force us into over-concentration:

Click Here To Show Diagram Code
[go]$$Bc 76B W35 B 36
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . 2 . . X O . . |
$$ | . O O X . . . O . . X 1 O . W X X . . |
$$ | . . O X . . X . O . . . X O . O . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


...so we should take the dual-sente move first.

Attempts to hurt us don't work:

Click Here To Show Diagram Code
[go]$$Bc 76B W35 B 36
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X W O 2 1 X X . . |
$$ | . . O X . . X . O . . . X O 3 O . . . |
$$ | . . O X . . . . . . X . X 4 . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


Click Here To Show Diagram Code
[go]$$Bc 76B W35 B 36
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . 3 4 X O . . |
$$ | . O O X . . . O . . X W O 1 2 X X . . |
$$ | . . O X . . X . O . . . X O . O . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Re: Big Brother Malkovich # 1 (continued)

Posted: Mon Sep 06, 2010 8:36 am
by topazg
I'm rather amused Joaz hasn't looked for Black responses that give sente against the middle group to carry on the attack on the right side. I prefer Chew's move to Joaz's here.

Re: Big Brother Malkovich # 1 (continued)

Posted: Mon Sep 06, 2010 12:02 pm
by shapenaji
Approved.

Re: Big Brother Malkovich # 1 (continued)

Posted: Wed Sep 08, 2010 10:16 am
by Gresil
Click Here To Show Diagram Code
[go]$$Bc 77A W35 B 36
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X O O . . X X . . |
$$ | . . O X . . X . O . . . X O . O . . . |
$$ | . . O X . . . . . B X . X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


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



Further comments:
White's move was very nifty. It steals an eye and threatens to cut. Since the N12 stones are not only valuable cutting stones but the black group's only headway out of its bag-end, I can't give them up so must connect. There are several options, of which I seriously considered the following five:

Click Here To Show Diagram Code
[go]$$Bc 77A W35 B 36
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X O O . . X X . . |
$$ | . . O X . . X . O a . . X O . O . . . |
$$ | . . O X . . . . . b X . X . . . . . . |
$$ | . . O X . . . . O . c d . . . . . . . |
$$ | . X X O X . X . . O e O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]



A was initially the most attractive as it gives eye potential but it in fact isn't a connection:

Click Here To Show Diagram Code
[go]$$Wc
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O 6 5 X O O . . X X . . |
$$ | . . O X . . X . O X 3 1 X O . O . . . |
$$ | . . O X . . . . O 4 X 2 X . . . . . . |
$$ | . . O X . . . . O . . . . . . . . . . |
$$ | . X X O X . X . . O . O . . . , . . . |
$$ | . O O O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]


B and C don't look special. I spend aji with a peep, white blocks, I move on to O12. I could pick one of those.

D seems terrible:

Click Here To Show Diagram Code
[go]$$Bc 77A W35 B 36
$$ ---------------------------------------
$$ | . . . . . . . O . . . . . . . . . . . |
$$ | . X X O O . O X . . . . . . . . . . . |
$$ | . X O O . O X X . . . . . . O X X . . |
$$ | . X X O O X O X . X . O . . O O X . . |
$$ | X X O X . X O O X . . . . . . X O . . |
$$ | . O O X . . . O . . X O O . . X X . . |
$$ | . . O X . . X . O . . . X O . O . . . |
$$ | . . O X . . . . . . X . X . . . . . . |
$$ | . . O X . . . . O . 5 1 . . . . . . . |
$$ | . X X O X . X . . O 3 O 2 . . , . . . |
$$ | . O O O . . . . . 6 4 . . . . . . . . |
$$ | . . . . . X . . . X . . . . . . . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . X . . . . . . . . . . . . . |
$$ | . . X . X . . . . . . . . . . . . . . |
$$ | . . . , . O . . . , . . . . . O . . . |
$$ | . . . O . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ | . . . . . . . . . . . . . . . . . . . |
$$ ---------------------------------------[/go]

Here white has the ladder and black is shut in with scarcely room for two eyes.

Option E looks fun, but variations are too many for me to deal with. Topmost of my worries is that white may wedge at L13. So I combine it with B.