diff --git a/src/test/bench/sudoku.rs b/src/test/bench/sudoku.rs
index bd892dcb824..2e8ef0bac58 100644
--- a/src/test/bench/sudoku.rs
+++ b/src/test/bench/sudoku.rs
@@ -126,21 +126,40 @@ fn write_grid(f: io::Writer, g: grid_t) {
      }
 }
 
-const default_grid: [[u8]] = [[0, 4, 0, 6, 0, 0, 0, 7, 2, 0], //0
-                      [0, 0, 8, 0, 2, 0, 0, 0, 0, 0], //1
-                      [7, 0, 0, 8, 0, 0, 0, 0, 0, 0], //2
-                      [0, 0, 0, 5, 0, 0, 0, 0, 0, 0], //3
-                      [0, 5, 0, 0, 0, 3, 6, 0, 0, 0], //4
-                      [6, 8, 0, 0, 0, 0, 0, 9, 0, 0], //5
-                      [0, 9, 5, 0, 0, 6, 0, 7, 0, 0], //6
-                      [0, 0, 0, 0, 4, 0, 0, 6, 0, 0], //7
-                      [4, 0, 0, 0, 0, 7, 2, 0, 3, 0], //8
-                      [0, 0, 0, 0, 0, 0, 0, 0, 0, 0]];
-
 fn main() {
     let args = os::args();
-    let grid = if args.len() == 1 {
-        default_grid;
+    let grid = if vec::len(args) == 1u {
+        // FIXME create sudoku inline since nested vec consts dont work yet
+        // (#571)
+        let g = vec::from_fn(10u, |_i| {
+            vec::to_mut(vec::from_elem(10u, 0 as u8))
+        });
+        g[0][1] = 4u8;
+        g[0][3] = 6u8;
+        g[0][7] = 3u8;
+        g[0][8] = 2u8;
+        g[1][2] = 8u8;
+        g[1][4] = 2u8;
+        g[2][0] = 7u8;
+        g[2][3] = 8u8;
+        g[3][3] = 5u8;
+        g[4][1] = 5u8;
+        g[4][5] = 3u8;
+        g[4][6] = 6u8;
+        g[5][0] = 6u8;
+        g[5][1] = 8u8;
+        g[5][7] = 9u8;
+        g[6][1] = 9u8;
+        g[6][2] = 5u8;
+        g[6][5] = 6u8;
+        g[6][7] = 7u8;
+        g[7][4] = 4u8;
+        g[7][7] = 6u8;
+        g[8][0] = 4u8;
+        g[8][5] = 7u8;
+        g[8][6] = 2u8;
+        g[8][8] = 3u8;
+        grid_ctor(g)
     } else {
         read_grid(io::stdin())
     };