[algorithm] DEFCON 22th 3dttt writeups

#!/usr/bin/env python from socket import * import time host = "3dttt_87277cd86e7cc53d2671888c417f62aa.2014.shallweplayaga.me" port = 1234 s = socket(AF_INET, SOCK_STREAM) s.connect((host, port)) se = {25:"0,0,0", 29:"1,0,0",33:"2,0,0",53:"0,1,0",57:"1,1,0",61:"2,1,0",\ 81:"0,2,0",85:"1,2,0",89:"2,2,0",119:"0,0,1",123:"1,0,1",127:"2,0,1",\ 147:"0,1,1",151:"1,1,1",155:"2,1,1",175:"0,2,1",179:"1,2,1",183:"2,2,1",\ 213:"0,0,2",217:"1,0,2",221:"2,0,2",241:"0,1,2",245:"1,1,2",249:"2,1,2",\ 269:"0,2,2",273:"1,2,2",277:"2,2,2"} location = [] i = 0 s.recv(1024) while 1: re = [] location = [] i = 0 s.send("1,1,1\n") while i < 13: data = s.recv(1024) for k in range(len(data)): if (data[k] == 'O'): if k in location: continue else: location.append(k) if 300 in location: location.remove(300) x,y,z = se[location[i]].split(',') if (z == '1'): u = 2 - int(x) v = 2 - int(y) l = 2 - int(z) else: if ( z == '0'): if (x == '1' and y == '1'): u = 2-int(x) v = 2-int(y) l = 2 else: u = 2-int(x) v = 2-int(y) l = 0 else: if (x == '1' and y == '1'): u = 2-int(x) v = 2-int(y) l = 0 else: u = 2-int(x) v = 2-int(y) l = 2 s.send("%d,%d,%d\n" % (u, v, l)) i += 1 data = s.recv(1024) print data cnt = data.split("You've won ")[1] cnt = cnt.split(" rounds...")[0] print cnt #if( cnt < '0'): 3/0 if(cnt == '50' ): f = open("flag.txt", "wb") f.write(data) f.close() print "======== Get the flag ===========" exit(1)