
what about a threesome?
my sons and i have something like that... 3 way chess... but the board is not circular (actually, better looking than what we have).
I will try to find a pic of it and post it here.
ok, coach, thanks for this sublime piece of prose you have linked me to: 
"3-way chess is a chessboard on which three people can play. The same rules apply except for some slight variation on moves made through the center of the board. Apparently this particular game was bought in the Czech Republic. And you know what else you can buy in the Czech Republic don't you? Absinthe. Yeah, I tried making my own once but drinking it made me go blind in one eye for a couple days. Just like the time I pleasured myself for fourteen hours straight."
https://www.google.com/search?q=3+way+chess+game&rlz=1C1JUFK_enUS554US554&espv=210&es_sm=93&tbm=isch&source=iu&imgil=xrDuqgRME44-2M%253A%253Bhttps%253A%252F%252Fencrypted-tbn2.gstatic.com%252Fimages%253Fq%253Dtbn%253AANd9GcRrD3tU6N9i7KDE8MFyIfEfn-aPzxdH6t6Zg5NQadeEQ2xbwrNo%253B450%253B338%253BilLsZHKn8kjn2M%253Bhttp%25253A%25252F%25252Fgeekologie.com%25252F2008%25252F03%25252F3way-chess-is-chess-made-for-3.php&sa=X&ei=pve0UpPDAYa1kQfxiYDoAg&ved=0CDMQ9QEwAw&biw=1366&bih=666#facrc=
whoa! well..click one of them and you will see a 3 way chess set.
I am soo computer challenged :(
Madam Marfona loves a chess threesome.She.plays.with LouisLunchbox and an invisible.zombie.Awesome.
4 Player Chess - Lobby - Play Chess Variants Online - Chess.com
https://www.chess.com/variants/4-player-chess/lobby