Karuba: Solo

Karuba is, essentially, a solo game that two to four players play simultaneously. One player could theoretically play for a high score, but the randomness of the draw makes that a little problematic – and playing to beat a high score outside of the arcade isn’t terribly fun anyway. But as I was playing with the pieces and the tiles and thinking of a simple notation for my aforementioned hypothetical correspondence game1, I accidentally came up with what seems to be a decent solo variant for this game.