FYI: This is the beginning of route Leppäkeihäs, of 1978, by Ilkka Paloheimo and Jan von Plato. The original route goes straight up the overhanging layback. The "variation" is an inappropriate misnomer.
A bit discontinuous line following an open book to the right of Feenix up to midway ledge (possible belay), then a stellar diagonal corner crack up a slab. Old piton pointing the way. Original grade has been 4, A2.