The All Blacks have beaten Wales 29 - 9 in Cardiff.
Wales led 9 - 6 at half time and dominated possession, while the visitors only led the penalty count.
But it was a different story after the break with the All Blacks scoring 23 unanswered points.
Ma'a Nonu scored 10 minutes after the break and Jerome Kaino scored a second try in the final minutes while Dan Carter kicked 19 points.
New Zealand now need to beat England at Twickenham next weekend to record their third grand slam of victories over the four home nations.
England earlier lost to the Springboks by a record 42 points to 6 - the home side's worst losing margin at Twickenham.
