Wales boss Warren Gatland says he is relishing the prospect of a "fantastic" Guinness Six Nations opener against world number one team Ireland.Gatland's second spell in charge of Wales will begin with a fierce reintroduction to Test match rugby.After the final year of his previous reign delivered a Six Nations title and Grand Slam in 2019, Gatland will be reunited with a tournament he describes as "the best rugby competition in the world".Either side of a 2021 title success, Wales had two fifth-place finishes under Wayne Pivac.Prior to Gatland’s departure from Wales after the 2019 World Cup, Wales recorded a 70% Six Nations success rate across the 12 tournaments that took place during his tenure.Wales won the Six Nations four times, including three Grand Slams, which was a record that none of their rivals could top."It is completely different to the autumn series, where there is an opportunity to try things out," Gatland said."The Six Nations is when points are at stake, and that kind of replicates in some way the World Cup, where the aim initially is to get out of your pool."For us, it is about hopefully hitting the ground running and just making sure we have a Six Nations campaign where, first of all, we are competitive."Having Ireland first up is going to be a challenge against the number one team in the world, but having them first up is fantastic."The first thing is to see those players wearing that jersey with incredible pride and giving a performance that reflects the hard work they’ve put in."If we do that, we have got a chance of having a good Six Nations and then we can build on that towards France and the World Cup."Gatland is expected to arrive in Wales next week, with the Six Nations planning set to start