iProbes consists of two casual search games, Righties and Randoms, developed by the veteran software expert (and researcher on thinking), Tom O'Brien.
In Righties the player launches probes which search a four-by-four grid for 1-12 blockers called Righties. To search for 1 Rightie is within the range of a 5 year old. Seven Righties or more is very difficult, even for PhDs.
Randoms is a similar game except that blockers switch randomly between Rightie and Leftie.
- iPhone port developed by Bill Judd