only the continuation method has yet been able to completely solve the fourbar link- age 9-precision-point problem and yield all its possible solutions. Wampler, Morgan, and Sommese (18) used a combination of analytical equation reduction and numerical con- tinuation methods to exhaustively compute all possible nondegenerate, generic solutions to the 9-point problem. They proved that there is a maximum of 4326 distinct, nonde- generate linkages (occurring in 1442 sets of cognate triples) that will potentially solve a generic 9-precision-point fourbar problem. Their method does not eliminate physically impossible (complex link) linkages or those with CBo defects. These still have to be removed by examination of the various solutions. They also solved four examples and