3 files changed, 5 insertions, 2 deletions

diff --git a/TODO.md b/TODO.md
index f043841..fe25539 100644
--- a/TODO.md
+++ b/TODO.md
@@ -13,7 +13,10 @@ It's more of a personal reminder than anything else.
 * Free large tables from memory before exit (this is not strictly necessary,
   but can help with WSL bugs)
 ### Installation
-* Automatically download tables as an option for gen command
+* At startup, check if tables are all there; if not, print an error message
+  suggesting to run `nissy gen -t 8` (or more than 8). Is it actually
+  possible to make table generation at least 3x faster?
+* make 8 threads default for gen?
 ### Documentation
 * Write an examples.md file
 * More screenshots!
diff --git a/nissy.exe b/nissy.exe
index f143ec8..9dd92f8 100755
--- a/nissy.exe
+++ b/nissy.exe
diff --git a/src/solve.c b/src/solve.c
index 0bd1de7..b9f5000 100644
--- a/src/solve.c
+++ b/src/solve.c
@@ -368,7 +368,7 @@ niss_makes_sense(DfsArg *arg)
         Cube testcube;
 
         testcube = apply_move(inverse_move(arg->last1), (Cube){0});
-        return arg->current_alg->len == 0 || arg->step->is_done(testcube);
+        return arg->current_alg->len == 0 || !arg->step->is_done(testcube);
 }
 
 static bool