  The ice Ansatz on matrix solutions of the Yang-Baxter equation is weakened to
a condition which we call rime. Generic rime solutions of the Yang-Baxter
equation are described. We prove that the rime non-unitary (respectively,
unitary) R-matrix is equivalent to the Cremmer-Gervais (respectively, boundary
Cremmer-Gervais) solution. Generic rime classical r-matices satisfy the
(non-)homogeneous associative classical Yang-Baxter equation.
