OverTheWire Natas 9 In mean time waiting for an important result, let me go with Natas 9 and Natas 10 . The reason I group 2 levels in one post is that Natas 10 is upgraded version of Natas 9 ( there is a more upgraded version that is Natas 16 but i won’t spoil the fun now ). Less talk, grab password from previous level and login. We greeted with a words search form. There is the source code : < html > < head > < link rel = "stylesheet" type = "text/css" href = "http://www.overthewire.org/wargames/natas/level.css" > </ head > < body > < h1 > natas9 </ h1 > < div id = "content" > < form > Find words containing: < input name = needle > < input type = submit name = submit value = Search > < br > < br > </ form > Output: < pre > <? $key = "" ; if ( array_key_exists ( "needle" , $_REQUEST ) ) { $key =