Google ’s AlphaGo is on a roll . In January , the by artificial means intelligentGo - play automaton became thefirst computer to bewilder a professional playerat the Chinese board gameGo . Now , WIREDreports that AlphaGo has made its most decisive victory , beatingGoGrandmaster Lee Sedol four to one in a five - gameGotournament .
While computers have shell professional chess player , outflank humansatJeopardy , and even solvedConnect Four , this is the first sentence a computer has compete professionally in and won aGotournament against a player at Sedol ’s story . Go , which is play on a 19 - by-19 power system , has more possible opening relocation than perhaps any other board game . For instance , whileConnect Fourhas seven possible opening moves , and chess has20 possible openings , Gohas361 . The sheer number of possible motion in aGogame has historically made developing aGo - playing computer hugely challenging .
AlphaGo , however , is a victory in AI engineering . The information processing system system used a neuronic meshwork to not only learnGomoves from professional thespian , but to develop its own strategies and accomplishment by playing against itself , CNET reports .

AlphaGo , the " player " at left , was aided by a human assistant who moved the man on theGoboard . At right , Grandmaster Lee Sedol . range of a function credit : Getty
The tourney put the divergence between humans and computing machine into sharp relief . On the one hand , AlphaGo played an idiosyncratic secret plan , allot toWIRED , make moves throughout the tournament that no human would pick out . ( As you could see in the photograph above , AlphaGo got a physical assist from a human helper who moved the firearm on theGoboard . ) It also made mistakes that seemed amateurish to human observers . Sedol , on the other hand , made at least one uniquely human option : After beating AlphaGo while playing with snowy pieces in the fourthGomatch — his only victory — he chose black pieces for the fifth and terminal game , a decision he cognize would put him at a disadvantage .
Throughout his first four game , Sedol had noticed AlphaGo struggling more when it fiddle with disgraceful pieces , and so , rather than meet it safe in the 5th game , he decided to see if he could exhaust the computer at its strong . “ I really do hope I can win with smutty , ” he toldWIREDbefore the final biz , “ because winning with black is much more valuable . ”

Though Sedol at last lost , the game against AlphaGo was nevertheless a win for human innovation .
" The biz shew that AlphaGo is far from infallible , " explainsWIRED . " There are holes in its teaching . But , capable to draw on months of play with itself — on a principal sum of moves that no human has even seen — it also has the ability to mount out of such a cryptical hole , even against one of the world ’s best players . "
[ h / tWIRED ]