PlaySlow wrote:
If all white groups i'd play at E15, if you mean right side groups i'd play at M13.
Yep I meant M13. In the game black first cemented your area by useless exchanges ( 
, 
, 
) and then started to run with N13 afterwards, which did not work well. However N13 is more dangerous than it seems, I have added a few exemplary variations at 
(and would appreciate corrections if I missed anything!). Note that this also latently threats the L16 stones. Of course N10 at 
is not the only possible answer, and I have not analyzed all possible variations. Therefore it is not necessary for b to do that right away, he should continue elsewhere (thereby paying attention not to strengthen the area under question!) and wait for a good moment for exploiting that aji. Go to move 49:
D4 is natural. 
This is unbearable.
at D4 ( which you missed ), it's bad enough you have to reply at E5.
Bad habit.
Bad habit.
-- W has developed this bad habit for some time. ( Probably nobody told him about it. )
Which side is better ( more useful ) for B ? J7 or K6 ?
note -- W is not being greedy -- you allowed his 
.
Locally, between A or B -- of course block directly at B.
, 
You mentioned the proverb hane at the head, 
Find the correct move and sequence. ( Your note at 
is incorrect. )
there is a very simple way of keeping the N18 stones alive (Hint: count liberties!). With that move black's position would be rather on the winning side IMHO.
OK for these levels, but he ignored your approach; this feels a little soft.
No. Either connect solidly E3, push up F4, or extend G3. Not this hane.
You got lucky. He should've punished you right away -- push at E3 then cut (you have 3 cuts!) -- your shape collapses here.
Wrong shape. Your N3 group is not settled either; so each side has a weak group.
A right idea, I think. But it feels "pushing from behind". Maybe one higher, at L6, is better ? Get in front of your opponent.
Strange shape. At least L7.
You HAVE sente (at 
120 Pass. Do you need 3 eyes to live ? 
is usually not played this early, so it is probably not a good move, but I am not sure there is any great punishment to be found. The game sequence gives W perfect shape and leaves B somewhat overconcentrated, so you should be satisfied. You could try something drastic like Q5-R5-R6 to punish B for not connecting here. If B simply connects at R4, you connect at Q6 for a great result. Try playing out some of the more difficult continuations and see if you like the results.
seems greedy. The W approach at F3 was not an overplay. If B responds normally at C6, and W then comes back to J4, W would not have too much territory here. So I would look for a more aggressive response than simply jumping into the corner. A double approach would be quite playable, as Ed suggested. Or simply jump to F5, making miai of D6 and J5.
should also be F4 -- just look how flat and small and inefficient the W position becomes if B presses here a few times in sente (giving up the J3 stone, which would have earned an honorable death).
- 
you suggested a few moves. "A" would be very good, as would a similar extension in the other direction. "B" would be superb, finally making good use of your N15 stone. "C" and "D" both seem too slow, as both B and W center groups are alive, so there is no attacking purpose.
I think I would just play E17, taking the corner profit and preventing 
is a strong move, but only if W is willing to fight the ko. This would be a good time to pause and count the game, and also to count large ko threats for both sides. Tenuki is also a good option, saving you a full move if B gets nervous and defends before you start the ko.