Move Trangle away from playground fence just far enough to change the angle from 90° to 120°. 1-on-1 Trangleball is played exactly the same as 3-on-3 Trangleball. Of course, with the exception that there is no passing.
TRANGLE 2-ON-2 RULES
2-on-2 Trangleball is played exactly like 3-on-3 except passing is only to your teammate.