Abstract
We study the invariants of 4−move defined in [5], and calculate Lie ring of the group R4(L) in response to the question proposed by Kawauchi [8], are link- homotopic links 4-move equivalent? We test the strength of the invariant R4(L) = š1(SL)/N over the nth Burnside group of links and then apply it on link ”L”, motivated by Askitas knot and propose it as a potential counter example to Kawauchi’s question.