kindling axe for kindling (!) – found it’s better as it’s not ‘sharp’ and so doesn’t dig in, just forces the wood apart.
.. and (maybe not so bad with big bits but probably wise) try and wear eye protection, pain in the arse but better that than jabbed in the eye with a skelf of wood … my mum tells me an uncle of hers (or possibly her dad) was chopping wood and got blinded in one eye. ooya.
— above post – once they dry out they tend to bind together, it’s bizarrely better to split when green – hard work but they do split and that way, as well, the wood seasons a good deal quicker..
but yes, if it’s too hard to split then let it weather a bit and try again.