diff -r 3e372ded7adc -r 9dacd7d46405 minesweeper/src/main/java/org/apidesign/demo/minesweeper/MinesModel.java
--- a/minesweeper/src/main/java/org/apidesign/demo/minesweeper/MinesModel.java	Sat Feb 08 06:23:40 2014 +0100
+++ b/minesweeper/src/main/java/org/apidesign/demo/minesweeper/MinesModel.java	Sat Feb 08 06:36:06 2014 +0100
@@ -97,6 +97,10 @@
         model.init(10, 10, 10);
     }
     
+    @Function static void giveUp(Mines model) {
+        showAllBombs(model, SquareType.EXPLOSION);
+    }
+    
     @ModelOperation static void init(Mines model, int width, int height, int mines) {
         List<Row> rows = new ArrayList<Row>(height);
         for (int y = 0; y < height; y++) {