Gary

That D version sounds trippy and fair. Kind of like the problem of dividing up a cake into parts that everyone getting a piece agrees with. Yup, that would be the way to solve the problem of fairness quite well. The book on the openings would start over fresh and the strategy and fun at the start would also be new. Your G version sounds simular to what I thought up, though my idea wouldn't stop someone from placing them in a row with spaces between them. It'd be cool if all these versions were available at the sites for anyone to click and have their game played under the one they chose.

I went to the Pente.com site. I played one game of Keryo Pente. It was the first time I've ever played it with my opponent playing at the same time. He made a restricted move for his second move so I couldn't tell if he was forced to or not. I asked if he had to move there or chose to and he said he chose to. Next time I'll go first and find out. Cool site. I'll have to spend more time there the next time and check out some of the links too.

A version of Pente that I thought up a few months back would be best played on the 19 X 19 board. I call it Double Pente. To win you have to get two five in a rows on the board at the same time or one six or longer in a row or you have to bag 20 dudes. For Keryo I suppose it could be 30 dudes. I think it'd be a fun game. It would take more moves to play and would certainly lessen the first player's advantage a little.

You don't seem to like using the side of the board while playing Keryo Pente. I think the 13 X 13 makes for a good game because of the very fact that the side is part of the play especially against good players that make a game go more moves than the weaker players do. I do want to play a bunch of games of Keryo Pente on the 19 X 19 board to see how I feel about it. Still no word from the ol' IYT team, eh? :(
Perhaps I'll like it more or not or even the same. I suppose the 100 X 100 was a little extreme. 30 X 30 would probably completely eliminate the side from serious play. Especially if the first move is the center intersection.

Thanks again for your replies. I hope your research on the 3rd and 4th rounds of Keryo Pente tournaments on IYT is going well. Sounds like a lot of numbers to look up and shuffle through.