What is the difference between Reduction and Invasion?

Bill Spight · **#21**

Nice play.

I'd be interested in your views about a somewhat different play at that point.

oca · **#22**

Uberdude wrote:

I remember move 48 I played here being rather interesting on the border between invasion and reduction. It's somewhat of a probe: if black answered below (at L7) then it would be a reduction and I would play further safe reductions (or yose moves if you prefer) from f2 and n2 (or try o4). But If black capped as he did in the game then I would invade and that initial stone becomes a good exchange that gives my invading group more space.

Wow... If one day I can play at 1/10 of that level, I Will allready be very happy... btw, I'm surprised That black approached your 3-3 stone that early...

Bantari · **#23**

RobertJasiek wrote:

http://senseis.xmp.net/?NTerritory

Do you think such levels of abstraction are appropriate for beginenrs?

Uberdude · **#24**

Bill, what is the purpose of playing to the right a bit? Are you eyeing up the q7 weakness? Or aiming at q10? That could work well with something on the right side, or even some attacking potential if white could also get L4 but probably white won't have a rhythm to get both of those. I considered moves around the one I played, but not that far right. My move had a very nice feeling and worked well with my planned h4/l4 continuation if black capped. It's hard to know how to answer as black in either case, but if black follows my idea of shrugging his shoulders and abandoning the moyo to make some cash at r15 what does white do next (and how different to with L9)? I can see that your move is easier to run away to the north west if black caps, but I actually wanted black to cap my move because then I live inside and turn the cap to dame.

What is the difference between Reduction and Invasion?

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