diff --git a/docs/source/how_to/how_to_algorithm_selection.ipynb b/docs/source/how_to/how_to_algorithm_selection.ipynb
index e7dc6ee71..3612a6c45 100644
--- a/docs/source/how_to/how_to_algorithm_selection.ipynb
+++ b/docs/source/how_to/how_to_algorithm_selection.ipynb
@@ -57,6 +57,14 @@
     "\n",
     "    G[\"differentiable?\"] -- yes --> J[\"'scipy_lbfgsb', 'nlopt_lbfgsb', 'fides', ...\"]\n",
     "    G[\"differentiable?\"] -- no --> K[\"'nlopt_bobyqa', 'nlopt_neldermead', 'neldermead_parallel', ...\"]\n",
+    "\n",
+    "    C[\"'ipopt', 'nlopt_slsqp', 'scipy_trust_constr', ...\"] ~~~ L[\" \"]:::transparent\n",
+    "    H[\"'scipy_ls_lm', 'scipy_ls_trf', 'scipy_ls_dogleg', ...\"] ~~~ M[\" \"]:::transparent\n",
+    "    I[\"'nag_dflos', 'pounders', 'tao_pounders', ...\"] ~~~ N[\" \"]:::transparent\n",
+    "    J[\"'scipy_lbfgsb', 'nlopt_lbfgsb', 'fides', ...\"] ~~~ O[\" \"]:::transparent\n",
+    "    K[\"'nlopt_bobyqa', 'nlopt_neldermead', 'neldermead_parallel', ...\"] ~~~ P[\" \"]:::transparent\n",
+    "\n",
+    "    classDef transparent stroke:#FFFFFF, fill:#FFFFFF\n",
     "```\n",
     "\n",
     "Going through the different questions will give you a list of candidate algorithms. \n",