--- a/src/de/uapcore/sudoku/ActionHandler.java Sun Jan 27 15:03:57 2013 +0100 +++ b/src/de/uapcore/sudoku/ActionHandler.java Thu Jan 31 18:44:44 2013 +0100 @@ -134,7 +134,10 @@ } private void solve() { - // TODO: solve + if (!solver.check(field) || !solver.solve(field)) { + JOptionPane.showMessageDialog(field, "Das Feld ist nicht lösbar!", + "Sudoku", JOptionPane.WARNING_MESSAGE); + } } private boolean saveUnsaved() { @@ -162,6 +165,7 @@ switch (e.getActionCommand()) { case NEW: if (saveUnsaved()) { + doc.clearFilename(); field.clear(); } break;