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Difference Game/ Discussion
Sub-page of DifferenceGame

rubilia: To avoid confusion about move orders, I have changed the diagrams a little. I think the very first difference game someone gets to see should be as clear as possible. If you can't agree to the change, just restore them. However, even first time readers who aren't used to scientific texts can get an idea of what is G - G, and subsequently, G' - G'' or G - H, if the diagrams illustrate each single step in the easiest way.

Bill: Rubilia, the new diagrams confused the issue. Play should start from the difference game, as constructed. However, I did revise the first diagram, hopefully to make it clearer.

rubilia: I see your point, and I agree that it's clearer now than it was before. Sorry about confusing you. :P

AFAICS, to more than a few players CGT is completely "Voodoo", and that might be a result of, among others, too less illustration. I am quite sure it could help not to drive math beginners off if there was shown a diagram concurrent to every step, like:


[Diagram]
Example 1, G



[Diagram]
Example 1, - G



[Diagram]
Example 1, G - G



[Diagram]
Example 1, Ga - Gb



etc.

Of course, not every go player wants to go straight ahead into the deeper parts of CGT. But why to make the entrance less inviting than feasible?


Another question is, if move number markers like B1 and W2 in [Example 2, Difference Game|DifferenceGame#diag9] aren't more distracting than useful.

Bill: You make some good points. :-) I have added a setup diagram for Example 1. What do you think?

rubilia: Wow, that's great. It's all fine now. :-) So, shall I delete the above?

Bill: Fine. Thanks for your help. :-)

(Yet another didactical improvement (a smaller one, though) would be to promote understanding of terms like "G - G" by associating them to the corresponding diagram, together with the explaining words which are already there.)



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(OC) 2004 the Authors, published under the OpenContent License V1.0.