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George Duke wrote on Tue, Oct 16, 2007 12:57 AM UTC:
At the end Ralph states that the most interesting one in this article, ''great and playable'' is the first one, simple Inverse Capture Chess. Captures are made using the style of capture of the captured piece. Nothing else is affected. The elementary, yet unobvious idea has the counterintuitive greatness of the Withdrawer in Ultima, which I personally first saw played at Reed College, Oregon, chess club in the 1970's. So here if a Bishop attacks a Rook two squares away, for example, the Bishop can move one square along that diagonal, as well as normal moves along any other diagonal, but not the second square to capture that Rook. Instead, the Rook on its turn can capture the very same Bishop that two squares away, but not move only the one intervening square. The same for any piece that is attacked by an opponent piece or pawn. The capture cannot take place according to normal. Instead, the opposite (attacked) piece can capture the attacking piece on its turn. We figured out the shortest Foolsmate and the code for it. It will be fun to break this great, CV-motivating article, one of Betza's 20 best, from 10 years ago periodically into 5 or 10 Comments. In the Intro Betza describes a cousin of Ultima Immobilizer he calls Gorgon, or Medusa. The Gorgon, or Medusa, freezes or immobilizes whatever piece attacks it, a piece having later use than year 1997. This still does not even cover the material of the first two of nine sections in CVwIC. Great job, Ralph.

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