1 files changed, 4 insertions, 1 deletions

diff --git a/cube.h b/cube.h
index 0a39d12..3f2495d 100644
--- a/cube.h
+++ b/cube.h
@@ -120,7 +120,10 @@ could.
 
 int64_t solve(
         cube_t cube,     /* The cube to solve. Must be solvable. */
-        char *solver,    /* The solver. Supported solvers: TODO. */
+        char *solver,    /* Supported solvers:
+                          * "optimal" - currently the same as "simple"
+                          * "simple"  - a simple, slow solver using no tables
+                          */
         char *options,   /* Some solvers accept extra options,
                           * like "!filter".
                           */