If one takes into account the fact that most smartphones have video coprocessors that speed up video decoding a lot (while reducing the battery usage), but whic

If one takes into account the fact that most smartphones have video coprocessors that speed up video decoding a lot (while reducing the battery usage), but which aren't quite appropriate to display that kind of "image puzzle" (that would be more in the GPU/CPU 2D acceleration field), unless the "puzzle" is comes encoded as a video, I would say the battery would be more drained than when playing video, yes.