Would someone like to try a game on two boards at once?
This is a very natural variant to try (actually not really a variant at all, just regular go on a different type of board). It’s important that the two boards are of different sizes, otherwise the second player could always mirror the moves on the opposite board (there are of course other ways to counteract this too; starting from a nonsymmetrical position, letting the stronger player take white and reverse komi, etc. But I find the non-equal board sizes more interesting anyways).
It’s very convenient to play IRL, online is slightly trickier. It could be played on OGS in two separate games by always passing in one of the games, but as we recently found out while playing Entangled Go it get’s slightly annoying that the game automatically enters the scoring phase every time two consecutive passes happens. VGS has the same basic issue, but at least you won’t get a notification every time a scoring phase is cancelled. Setting up two boards on https://goban.co/ could potentially work very well (in theory it should allow both players to freely edit both boards, but I don’t have much experience with that page). In a similar vein, http://www.iggamecenter.com/ has a sandbox mode which should work nicely, but would require manual removal of stones.
Anyways, technical issues aside, anyone interested?