“…Additionally, when dealing with nonlinear evolution equations it is important to have a thorough understanding of the characteristics of the equation itself, as well as the potential solutions, in order to ensure accuracy and avoid unnecessary computational effort. There are some techniques used to solve NLEEs successfully, such as N-fold Darboux transformation [ 16 ], simplified Hirota's direct method [ 17 ], modified exponential rational function scheme [ 18 ], Simplest equation and New form of modified Kudrusov procedure [ 19 ], new generalized exponential rational function technique [ 20 ], amplitude ansatz method [ 21 ], Hirota bilinear forms with Hirota direct method [ 22 , 23 ], unified scheme [ 24 ], New modified simple equation technique [ 25 ], backlund transformations [ 26 ], backlund transformation from the riccati form of an inverse method [ 26 ], simple symbolic computation approach [ 27 ], generalized projective riccati equations method [ 28 ] Sardar sub-equation and the MK approaches [ 29 ] sine-cosine scheme [ 30 ], reductive perturbation method [ 31 ], enhanced modified simple equation technique [ 32 ], and so on. The motivation of this work is to explore the variable coefficient solitary wave solution of classical Kolmogorov–Petrovsky–Piskunov (KPP) models.…”