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|Dates: February 1 – March 16|
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The best teams in the northern hemisphere, filled with sporting cathedrals, millions of people from all over the world watch the game in the shadow of the autumn Rugby World Cup.
The scene is prepared for the spectacular Sixties of the 2019 Nations.
Wales is preparing to meet with France in Paris in the first match on Friday at 20:00 GMT – a match that you can watch live on BBC One – BBC experts predict a plot change this year.
Which match are you looking forward to most?
Former England striker Matt Dawson: France – Wales No one speaks about these two teams this Friday evening, and yet their compositions are very dangerous. If Wales chooses it, a title fight will be played on the cards in Cardiff against Ireland.
BBC rugby correspondent Chris Jones: When to start? Ireland vs England This is a very important match at the opening weekend. But Wales vs England The game in Cardiff is always special. This year, it will be held in the third round of action – in the center of the championship – and may even become a trial stage of the World Cup quarter-finals. Titanic.
In terms of atmosphere, travel support and history, it’s also not getting much better than Scotland vs Wales game in Murrayfield.
Former center of England Jeremy Guskot: It's so hard to choose because the results change the significance and weight of each match as the tournament starts. On paper, you look at three games that unite England, Ireland and Wales, but that can change.
Who will be the breakthrough star?
Jones: Scrum half Tomos williams say many of those in the know are in Wales and convincing evidence that the Six Nations could solve the Rice Webb World Cup saga. I also hope that one more newbie number nine, Antoine Dupont France, gets a chance to try to transfer its club form to the international arena.
Dawson: Wales back row has the habit of delivering sparkling talents and Aaron Wainwright looks like a business. From the Irish point of view, I look forward to seeing Chris and Tom Farrell – No relation to each other or protection coach Andy Farrell – to brighten up the already sparkling back.
Guscott: He can get a job in the Ireland national team, which includes players like Jacob Stockdale and Keith Earls, but the ferocity of the contests may mean that Jordan larmore it starts I would like to see that it succeeds because it is not too big, but compact, elusive, with surprisingly complex footwork.
Where, if anywhere, is Ireland's weakness?
Former Irish Wing Shane Horgan: Ireland is not going to throw a cliff in terms of form, talent or quality, but you can lose games in the Six Nations.
They can start slowly in the Six Nations – Johnny Sexton after more than 40 stages scored a last-minute goal to beat France last season. The powerful game of England is what will excite Ireland in the first weekend. It depends on the choice, but Manu Tuilagi can destroy Ireland.
Later in the tournament, this is not brilliant for Ireland. They have Italy between two weeks break. If Joe Schmidt decides to rest for older players, they will have four weeks of rest, which is probably too far from the front line.
Finally, they have a six-day turnaround between France at home in the fourth round and a potential decisive title in Wales for the final weekend.
Dawson: The only weakness I see is half the depth of the fight. Conor Murray is so influential that I feel that now the others have a significant gap when Luke McGrath came out and Kiran Marmion had just returned from injury. All eyes will be on Murray. He will receive a lot of attention.
Will Scotland be able to translate the Champions Cup highs in Edinburgh and Glasgow to real progress?
Former flank of Wales Martin Williams: Edinburgh and Glasgow did an excellent job, but to take the next step, Scotland must beat the big teams away from home.
In Murrayfield, they are impressive, and it is not surprising if they turn Wales or Ireland over there this year.
Away from home, although this is a different story. They have not won in Ireland since 2010, in Wales since 2002, in France since 1999, and in 1983 they defeated England in Twickenham.
To make it even more difficult, Scotland has a long list of injuries with people like Hamish Watson, John Barclay, Richie Gray, Duncan Taylor and Mark Bennett.
They have some great players in Tommy Seymour, Finne Russell and Stuart Hogge, and they can stand up against Italy to gain confidence.
They are really well trained by Gregor Townsend, and they will not be easy to beat, but by losing Watson and a lot of players in the first row, you can eliminate them from victory.
Dawson: Two home appliances are an ideal start for Scots who build their European form. Impulse is always the key to finding consistent success, so I’m sure that Gregor emphasizes this.
They are in the same place where Ireland was 10 years ago. Their home shape is solid, but they are amazed or overshot. But Scotland must now believe that they have the strength and cunning to defeat the best. Mental application is crucial.
How much will Eddie Jones get loser status in England?
Former center of England Jeremy Guskot: The Australian psyche Eddie Jones has its own side, which can be enjoyable, proving that people are wrong and frustrating rating. Last year, England entered Six Nations as the winners of the two previous tournaments. This year they are higher in the world ranking than Ireland and Wales.
By the way the lanterns landed, they must go both to Dublin and to Cardiff. For the entire world, rugby will be a huge statement if they can beat Ireland this weekend.
When you look at the personnel in his possession, there is a reason for a serious confrontational game with the ball in hand.
In the first row, Mako Vunipola, Jamie George and Kyle Sinclair, the second row from Maro Itoye, Joe Lonchbury and Billy Vunipola at number eight, adds six really strong runners who can do some damage.
In the backs, he will hope that the heavy ball holders Manu Tuilagi, Ben Te Oh and Joe Kokansiga will fit simultaneously.
This is another, more dynamic, confrontational England, which we have not seen too much, and it could create space in wide channels for use by Elliot Daly and Johnny May. It will be interesting to see what will develop.
Wales flew under the radar, despite nine wins out of nine?
Jones: Wales we flying under the radar, but no more, with Warren Gatland, who talks about his chances with pleasure. Who plays on the fly is the key. Dan Biggar was a Wales warrior – and there will be again – but the Welsh leadership must find out if they need a more creative choice in the confrontation in order to win the World Cup.
Rice Patchell is a great player, but the defeat of England with a score of 12-6 in Twickenham last year revealed his temperament, so go to Gareth Anscombe – which has both a universal game and a mentality to thrive at the highest level. Will he get an extended run in this Championship to show that he is a playmaker for the World Cup of Wales?
Guscott: Wales should not be afraid to go to France in a tournament tournament – they have very good results in recent years, both at home and abroad, and then they will play with Italy in the second round of matches. This can create a pulse of momentum.
As a competition, the Six Nations have three of the top four teams in the world. This is a sample of world rugby, and Wales is a key part of this.
What are the contradictions of the tournament?
Jones: How high and dangerous gear is performed will be the main topic of conversation. Inside the country this season was a mess: the judges at the European competitions solved the problems much more harshly than in the leagues, while the “Farrell hot spots” of the autumn only mistreated.
What about breakage? And in terms of security and interpretation, this is the Wild West version of rugby union. For millions of casual rugby fans — who can only watch the Six Nations — all of this should seem like a complete mystery.
Guscott: The judges have the hardest job, and I thank them for what they do. In order for the game to continue, I would like them to focus on the breakdown zone. Too many players put their hands and elbows on the floor on the way to grabbing the ball. For me, it must be a punishment, you have to go straight for the ball.
Excellent “blackmailing” is a good part of the game, but too many marginal things that slow down and suffocate the game.
Who will win?
Williams: Ireland. In fact, you can only continue past performances, but any of them, England and Wales, can win it. France may be a curved ball.
Dawson: Ireland They are overwhelming favorites in both the Championship and Grand Slam, so it’s possible to show rugby people how skilled they are in withstanding this pressure.
Only complacency can beat them, but these are Six Nations, and history shows that the losers tend to gnaw at the heels of their owner.
Guskott: Ireland, This is not a difficult choice for me. If they play at the highest level, they are the best team. Complacency is a possible threat to them, but how Joe Schmidt manages this camp, I do not see that it is fixed.
Jones: Whoever wins in Dublin on the first Saturday, I think he will be brilliantly set to win the whole tournament. Contrary to my common sense, given that they have not won the "Sixth Nation" in Dublin since 2011, I'm going to England.