anchor.diff:                  <tbody>
                       <c:forEach var="game" items='${GAMEMAP}'>
                           <c:if test="${PLAYER.userName eq game.value.player.userName}">
  -				            <tr><td>${game.key}</td><td>${game.value.player.userName}</td><td>${game.value.opponent.userName}</td><td>${game.value.currentStatus}</td>
  +                        <c:set var="uid">${game.key}</c:set>
  +                        <c:set var="index" value="${fn:length(uid)}"/>
  +				            <tr><td>${fn:substring(uid, index-5, index)}</td><td>${game.value.player.userName}</td><td>${game.value.opponent.userName}</td><td>${game.value.currentStatus}</td>
   						          <td><input type="checkbox" name="gameUUID" value="${game.key}"></td>
   						    </tr>		
                           </c:if>
  
positive.code:                 <tbody>
                      <c:forEach var="game" items='${GAMEMAP}'>
                          <c:if test="${PLAYER.userName ne game.value.player.userName}">
  				            <tr><td>${game.key}</td><td>${game.value.player.userName}</td><td>${game.value.opponent.userName}</td><td>${game.value.currentStatus}</td>
  						          <td><input type="checkbox" name="gameUUID" value="${game.key}"></td>
  						    </tr>		
                          </c:if>
  
negative.code: <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
  <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
  <%@ taglib uri="http://java.sun.com/jsp/jstl/functions" prefix="fn" %>
  <!DOCTYPE html>
  <html lang="en">
  <head>
  