diff --git a/src/main/java/com/booleanuk/Scrabble.java b/src/main/java/com/booleanuk/Scrabble.java
index 88108a8..326952d 100644
--- a/src/main/java/com/booleanuk/Scrabble.java
+++ b/src/main/java/com/booleanuk/Scrabble.java
@@ -1,12 +1,57 @@
 package com.booleanuk;
 
+import java.util.HashMap;
+import java.util.Map;
+
 public class Scrabble {
-    public Scrabble(String word) {
+    private final String word;
+    private static final Map<Character,Integer> letterMap = new HashMap<>();
+    static {
+        letterMap.put('A', 1);
+        letterMap.put('E', 1);
+        letterMap.put('I', 1);
+        letterMap.put('O', 1);
+        letterMap.put('U', 1);
+        letterMap.put('L', 1);
+        letterMap.put('N', 1);
+        letterMap.put('R', 1);
+        letterMap.put('S', 1);
+        letterMap.put('T', 1);
+        letterMap.put('D', 2);
+        letterMap.put('G', 2);
+        letterMap.put('B', 3);
+        letterMap.put('C', 3);
+        letterMap.put('M', 3);
+        letterMap.put('P', 3);
+        letterMap.put('F', 4);
+        letterMap.put('H', 4);
+        letterMap.put('V', 4);
+        letterMap.put('W', 4);
+        letterMap.put('Y', 4);
+        letterMap.put('K', 5);
+        letterMap.put('J', 8);
+        letterMap.put('X', 8);
+        letterMap.put('Q', 10);
+        letterMap.put('Z', 10);
+    }
+
 
+
+    public Scrabble(String word) {
+        if (word == null) {
+            this.word="";
+        } else {
+            this.word = word.trim().toUpperCase();
+        }
     }
 
     public int score() {
-        return -1;
+        int fullScore = 0;
+        for (char letter : word.toCharArray()) {
+            fullScore += letterMap.getOrDefault(letter, 0);
+        }
+        return fullScore;
     }
 
+
 }