show captcha solution

app/views/base/captcha.scala.html

@@ -14,6 +14,9 @@
       @trans.thisIsAChessCaptcha()<br />
       @trans.clickOnTheBoardToMakeYourMove()
       <br /><br />
+      @defining(netBaseUrl + routes.Round.watcher(captcha.gameId, captcha.white.fold("white", "black"))) { url =>
+      Help: <a title="View the solution" target="_blank" href="@url">@url</a>
+      }
       <div class="result success">@trans.checkmate()</div>
       <div class="result failure">@trans.notACheckmate()<br /><button class="button retry">@trans.retry()</button></div>
     </label>

todo

@@ -72,7 +72,5 @@ opening tree http://www.shredderchess.com/online-chess/online-databases/opening-
 4 players tourney http://en.lichess.org/forum/lichess-feedback/4-player-tourney-please#1
 data visualisation with http://app.raw.densitydesign.org/
 show tenths of seconds in game clock
-bug? http://en.lichess.org/inbox/1kwsxjwy#bottom
 tournament elo restriction
-chess captcha: add link to the game
 localize report