England survived a terrific late Welsh surge to put one hand on their first Six Nations title for five years as an Anthony Watson try and 20 points for Owen Farrell helped them beat Wales 25-21 in a Twickenham thriller.
Ireland ruthlessly wore down Scotland in a commanding 40-10 victory at Murrayfield to win the Six Nations title on points difference from England.
England won an extraordinary battle but agonisingly lost the war as they beat France by a record 55-35 in an extraodrinary Six Nations finale but came up short of the 26-point victory they needed to deny Ireland a second successive title.
Brian O'Driscoll got the perfect send-off when Ireland won the Six Nations championship with a 22-20 victory against France, their first in Paris since the superstar centre made his championship debut in 2000.
Deposed Six Nations title holders Wales finished an inconsistent campaign on a spectacular high by thrashing a Scotland team reduced to 14 men for an hour by 51-3 for their best win in the championship.
In a scenario that will delight organisers, TV executives and armchair fans, the Six Nations championship is set to be decided in the final minutes of the final fixture of next weekend's "Super Saturday" triple bill when France face Ireland in Paris.
England gave themselves a great chance of winning only their second Six Nations title in 11 years when they deservedly beat double-defending champions Wales 29-18, securing their first Triple Crown since 2003 in the process.
France scored three second-half tries in 10 minutes to beat Italy 30-10 in the Six Nations championship and maintain their perfect start to the competition.
Ireland have comfortably won their opening Six Nations championship match at the Aviva Stadium, taking their time to get going before beating Scotland 28-6 as they look to put last year's poor campaign firmly behind them.
France have snatched a thrilling 26-24 Six Nations Championship victory over England thanks to a late converted try from Gael Fickou at Stade de France.
Holders Wales got their bid for an historic hat-trick of Six Nations titles off to a nervy start when they squeezed past a dogged Italy 23-15 in the opening match.
Declan Kidney's five-year tenure as Ireland coach has ended after the Irish Rugby Football Union (IRFU) decided not to renew his contract following the national team's worst Six Nations championship in 14 years.
A disjointed and error-strewn England needed a brilliant goalkicking display by Toby Flood to beat Italy 18-11 at Twickenham and set up a Six Nations championship decider against Wales in Cardiff next Saturday.
France have come from behind to draw 13-13 with Ireland in their Six Nations championship match after Louis Picamoles' late try ended Philippe Saint-Andre's misfiring side's run of three straight tournament defeats.
Six Nations champions Wales have ground out a 28-18 win over Scotland at Murrayfield to keep alive their hopes of retaining the title after losing to Ireland in the opening round.
Greig Laidlaw put the boot into Ireland as Scotland made the most of meagre possession to win a scrappy match 12-8 at Murrayfield and record their first back-to-back Six Nations victories since 2001.
England withstood the stiffest of examinations from a revitalised France but, thanks to the goalkicking of Owen Farrell and a try by Manu Tuilagi, emerged 23-13 winners of their Six Nations clash at Twickenham.
Scotland played with aggression, discipline and attacking ambition to beat Italy 34-10 in the Six Nations, their first win in this year's championship.
New Zealand-born England hooker Dylan Hartley faces a 12-week suspension after being cited for biting during his side's Six Nations win over Ireland in the weekend.
England's forwards have powered their team to second place in the Six Nations with a comprehensive 30-9 win over Ireland.
