Normal openings might be the best play even in infinite chess - at least they haven't been refuted. Not even the HTP Attack!
4.N(3,3)...(5,6)
5.(8,3)
Chess on an Infinite Plane (aidanB1 - HorribleTomato)



also note to @vickalin did you think about a piece that moved like a king but attacked like a knight? (or R,Q,B) which ever one is balanced the best

also note to @vickalin did you think about a piece that moved like a king but attacked like a knight? (or R,Q,B) which ever one is balanced the best
I haven't thought about that piece specifically. Even after inventing a piece it takes so many games to learn about it's value and how best to play it. But one of those pieces could be good to try!
LOL