1 files changed, 2 insertions, 0 deletions
diff --git a/src/sudoku.h b/src/sudoku.h
index 2059a81..afb9f16 100644
--- a/src/sudoku.h
+++ b/src/sudoku.h
@@ -17,6 +17,8 @@ public:
 		return sudoku_value[row][column];
 	}
 	
+	int solve_step(int pos_row, int pos_column);
+	
 private:
 	int sudoku_value[9][9];
 };