Letter on position 1 (r) changed: 5 words coster foster goster poster zoster Letter on position 2 (o) changed: 2 words raster rester Letter on position 3 (s) changed: 4 words rooter rorter rotter router Letter on position 4 (t) changed: 2 words rosier rosser Letter on position 6 (r) changed: 1 word rosted