X-Git-Url: https://git.distorted.org.uk/~mdw/sgt/puzzles/blobdiff_plain/48dcdd627698354063fa1b551cfa1917dea1b25e..5d3f9ea6b3599c21b3e1fbf819dd22dccbacc2d3:/mines.c

diff --git a/mines.c b/mines.c
index 881cad0..73d4c09 100644
--- a/mines.c
+++ b/mines.c
@@ -255,6 +255,8 @@ static char *validate_params(game_params *params)
 	return "Width must be greater than zero";
     if (params->h <= 0)
 	return "Height must be greater than zero";
+    if (params->n > params->w * params->h - 9)
+	return "Too many mines for grid size";
 
     /*
      * FIXME: Need more constraints here. Not sure what the