  Supersymmetric models with nearly-degenerate light higgsinos provide a
consistent solution to the naturalness problem under rigorous constraints from
current experimental searches for sparticles. However, it is challenging to
probe the compressed scenarios at collider experiments due to the
hard-to-detect soft final states. To overcome this issue, strategies have been
proposed to take advantage of the photon fusion along the ultraperipheral
collision at the Large Hadron Collider, which are feasible with the forward
detectors installed at the ATLAS and CMS detectors. In this paper, we
demonstrate a search strategy for the chargino pair production via photon
fusion at the 13 TeV LHC, realizing a good sensitivity that can exclude
$m_{\tilde{\chi}^{\pm}_{1}}$ up to 270 GeV (308 GeV) for a mass splitting
$\Delta m(\tilde{\chi}^{\pm}_{1},\tilde{\chi}^{0}_{1})\in[1,15]$ GeV with an
integrated luminosity of 100 fb$^{-1}$ (3 ab$^{-1}$) at 95% C.L.
