Even more complicated, three or more Gliders can collide. These collisions have not been enumerated, as in the case of three there could be from one hundred thousand, to several million, of them. There are so many a number of two Glider collision produce patterns which can take several hundred generations to reach their final state. Each of these generations can produce its own set of collisions, as since they are usually large and asymetric, this results in numerous final results which are only trivially different, but a few which are not. Both random and systematic sampling of these collisions, however, has produced some useful results--

Sample multi-Glider collisions.
Multi-Glider collisions
A: 3 GlidersTub [4.2] B: 4 GlidersSnake [6.1] C: 4 GlidersAircraft Carrier [6.3] D: 3 GlidersPentadecathlon [12P15.1]
E: 3 GlidersHat [9.1] F: 4 GlidersBlock on Table [10.2] G: 4 GlidersIntegral [9.5] H: 8 Gliders[15.777]

As was shown with the example collisions between a Glider and a Block [4.1], or with two Gliders, many collisions result in an empty, or dead field. In dying, however, some of these collisions produce unstable patterns which contain cells which can interact with a third object in such a way as to produce a new stable object. These are the most useful collisions, as they can be used to incrementally alter objects until a desired result is produced--

Sample useful dying sparks