Two pins: Judo or Aikido
NOTES:
Acceptable Judo and Aikido pins are techniques that cause the attacker to submit (tap out).

Some examples:

Judo
Seated arm lock (juji gatame)
Scarf hold (kesa gatame)
Knee arm lock (hiza gatame)
Bent arm lock (ude garami)


Aikido
Nikkyo pin
Sankyo pin
Standing kote gaeshi pin