Improve console game and extend README

Author: borisskert

README.md

@@ -1,4 +1,5 @@
 ```
+Welcome to
  .----------------.  .----------------.  .----------------.  .----------------.  .----------------.  .----------------. 
 | .--------------. || .--------------. || .--------------. || .--------------. || .--------------. || .--------------. |
 | |    _______   | || | _____  _____ | || |  ________    | || |     ____     | || |  ___  ____   | || | _____  _____ | |
@@ -21,5 +22,41 @@ mvn package
 # Run console game
 
 ```shell script
-mvn clean package
+java -jar target/sudoku.jar
 ```
+
+Game looks like:
+
+```text
+Width: 3
+Height: 3
+Level (1=easy, 2=medium, 3=hard): 2
+Creating puzzle...
+╔═╤═╤═╦═╤═╤═╦═╤═╤═╗
+║ │ │ ║ │ │7║ │ │ ║
+╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
+║ │ │ ║ │ │ ║ │ │ ║
+╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
+║ │ │ ║ │2│1║ │ │6║
+╠═╪═╪═╬═╪═╪═╬═╪═╪═╣
+║ │8│ ║ │ │2║ │5│ ║
+╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
+║ │ │ ║ │ │8║3│ │ ║
+╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
+║ │ │ ║7│ │ ║ │ │ ║
+╠═╪═╪═╬═╪═╪═╬═╪═╪═╣
+║ │ │2║ │4│ ║ │6│8║
+╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
+║7│ │8║ │1│9║ │ │5║
+╟─┼─┼─╫─┼─┼─╫─┼─┼─╢
+║ │ │ ║ │7│ ║ │ │ ║
+╚═╧═╧═╩═╧═╧═╩═╧═╧═╝
+
+Columns: right to left, 1 to 9
+Lines: top to bottom, 1 to 9
+Values: 1 to 9
+Type in 'SOLVE' to solve the puzzle
+Column: _
+Line: _
+Value: _
+```

pom.xml

@@ -40,6 +40,20 @@
                 <artifactId>maven-surefire-plugin</artifactId>
                 <version>2.22.0</version>
             </plugin>
+
+            <plugin>
+                <!-- https://stackoverflow.com/a/9689877 -->
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-jar-plugin</artifactId>
+                <version>3.2.0</version>
+                <configuration>
+                    <archive>
+                        <manifest>
+                            <mainClass>de.borisskert.sudoku.console.Application</mainClass>
+                        </manifest>
+                    </archive>
+                </configuration>
+            </plugin>
         </plugins>
     </build>
 </project>

src/main/java/de/borisskert/sudoku/console/Application.java

@@ -7,6 +7,8 @@ public class Application {
     private static final Scanner scanner = new Scanner(System.in);
 
     public static void main(String[] args) {
+        printWelcomeMessage();
+
         int width = readWidth();
         int height = readHeight();
         Level level = readLevel();
@@ -61,4 +63,19 @@ private static Level readLevel() {
 
         return Level.from(level);
     }
+
+    private static void printWelcomeMessage() {
+        System.out.println("Welcome to");
+        System.out.println(" .----------------.  .----------------.  .----------------.  .----------------.  .----------------.  .----------------. \n" +
+                "| .--------------. || .--------------. || .--------------. || .--------------. || .--------------. || .--------------. |\n" +
+                "| |    _______   | || | _____  _____ | || |  ________    | || |     ____     | || |  ___  ____   | || | _____  _____ | |\n" +
+                "| |   /  ___  |  | || ||_   _||_   _|| || | |_   ___ `.  | || |   .'    `.   | || | |_  ||_  _|  | || ||_   _||_   _|| |\n" +
+                "| |  |  (__ \\_|  | || |  | |    | |  | || |   | |   `. \\ | || |  /  .--.  \\  | || |   | |_/ /    | || |  | |    | |  | |\n" +
+                "| |   '.___`-.   | || |  | '    ' |  | || |   | |    | | | || |  | |    | |  | || |   |  __'.    | || |  | '    ' |  | |\n" +
+                "| |  |`\\____) |  | || |   \\ `--' /   | || |  _| |___.' / | || |  \\  `--'  /  | || |  _| |  \\ \\_  | || |   \\ `--' /   | |\n" +
+                "| |  |_______.'  | || |    `.__.'    | || | |________.'  | || |   `.____.'   | || | |____||____| | || |    `.__.'    | |\n" +
+                "| |              | || |              | || |              | || |              | || |              | || |              | |\n" +
+                "| '--------------' || '--------------' || '--------------' || '--------------' || '--------------' || '--------------' |\n" +
+                " '----------------'  '----------------'  '----------------'  '----------------'  '----------------'  '----------------'");
+    }
 }

src/main/java/de/borisskert/sudoku/console/Game.java

@@ -53,8 +53,6 @@ public void oneRound() {
             System.out.println("Solving...");
             puzzle.solve();
         }
-
-        printPuzzle();
     }
 
     public boolean isSolved() {