Re: [computer-go] professional knowledge

2007-04-07 Thread forrestc
> > mr. yang uses the ideas of short and long > extensions and high-low combinations in the > beginning. (a short extension being 1 or spaces > and a long being ideally 5 spaces). this tends to be eficient. There is the classic Chinese rule of thumb on how far one can comfortably extend along an e

Re: [computer-go] professional knowledge

2007-04-07 Thread Ray Tayek
At 06:17 AM 4/6/2007, you wrote: On Fri, 2007-04-06 at 13:48 +0100, Jacques BasaldĂșa wrote: > Darren Cook wrote: > > > All except joseki-knowledge is board-size independent. > > Maybe human player's adapt to different board sizes without > even noticing. But if you try to model strategy with alg

Re: [computer-go] professional knowledge

2007-04-06 Thread forrest curo
Darren Cook wrote: The chief difference between a 9X9 game and a 19X19 is in the demands the larger board makes on our _strategic_ reading ability. Agreed. And that is not merely another board-size-dependent skill, among many. That is the most significant difference between a compet

Re: [computer-go] professional knowledge

2007-04-06 Thread Don Dailey
On Fri, 2007-04-06 at 13:48 +0100, Jacques BasaldĂșa wrote: > Darren Cook wrote: > > > All except joseki-knowledge is board-size independent. > > Maybe human player's adapt to different board sizes without > even noticing. But if you try to model strategy with algorithms > it is totally board siz

Re: [computer-go] professional knowledge

2007-04-06 Thread Jacques BasaldĂșa
Darren Cook wrote: > All except joseki-knowledge is board-size independent. Maybe human player's adapt to different board sizes without even noticing. But if you try to model strategy with algorithms it is totally board size dependent. The extreme case is 5x5 where black 3,3 claims the four cor

Re: [computer-go] professional knowledge

2007-04-05 Thread Darren Cook
> Similarly, most kinds of endgame skill essentially vanish on a 4x4 > board: Yes, my thesis crumbles on the tiny boards: I think 9x9 is the smallest board size where 19x19 playing strength is very significant. (Endgame skill is important at 9x9: I've found games where a mid-dan player has lost to

Re: [computer-go] professional knowledge

2007-04-05 Thread William Harold Newman
On Fri, Apr 06, 2007 at 07:52:34AM +0900, Darren Cook wrote: > > The chief difference between a 9X9 game and a 19X19 is in the demands > > the larger board makes on our _strategic_ reading ability. > > Agreed. > > > And that is not merely another board-size-dependent skill, among many. > > That i

Re: [computer-go] professional knowledge

2007-04-05 Thread Darren Cook
> The chief difference between a 9X9 game and a 19X19 is in the demands > the larger board makes on our _strategic_ reading ability. Agreed. > And that is not merely another board-size-dependent skill, among many. > That is the most significant difference between a competent player and a > strong

Re: [computer-go] professional knowledge

2007-04-05 Thread forrest curo
The gap between a professional and, say, a 1-dan amateur is all to do with tesuji knowledge, life/death knowledge, and (to a lesser extent) tactical reading skill, accurate endgame counting and joseki knowledge. All except joseki-knowledge is board-size independent. There's also what you might c