Former US Open champion Justin Rose vowed to learn from his mistakes after again finding himself in contention to win the Masters.
Rose led after the first round at Augusta National in 2004, 2007 and 2008 - having failed to qualify in 2005 and 2006 - and shared the lead for much of the opening day on Thursday until Jordan Spieth produced a stunning 64 late in the day.
The 34-year-old's 67 was good enough for a share of second place with Australian Jason Day, Ernie Els and Charley Hoffman, with Sergio Garcia and Russell Henley a shot behind.
Masters 2016 - Augusta National hole-by-hole guide
Masters 2016 - Augusta National hole-by-hole guide
1/18 1st (Tea Olive), 445 yards, par four
deep bunker on the right of the fairway and trees both sides make for a daunting start, while long and left of the undulating green both spell big trouble. Unsurprisingly played the hardest hole on the course in 2012 and ranked second in 2013.
2015 average: 4.23 (rank 4)
2/18 2nd (Pink Dogwood), 575 yards, par five
Driving into the trees on the left cost Padraig Harrington a nine in 2009, but Louis Oosthuizen memorably holed his second shot for an albatross in the final round in 2012 before losing in a play-off to Bubba Watson. An important early birdie chance.
2015 average: 4.61 (rank 16)
3/18 3rd (Flowering Peach), 350 yards, par four
Shortest par four on the course but a pear-shaped green with steep slope in front allows for some wicked pin positions. Charl Schwartzel pitched in for eagle in the final round en route to title in 2011.
2015 average: 3.95 (rank 14)
4/18 4th (Flowering Crab Apple), 240 yards, par three
The back tee - not always used - turns it into a beast with the green sloping from back to front. Phil Mickelson took six here in the final round in 2012 and finished two shots outside the play-off. Jeff Sluman's ace in 1992 remains the only hole-in-one here in Masters history.
2015 average: 3.29 (rank 2)
5/18 5th (Magnolia), 455 yards, par four
Jack Nicklaus twice holed his second shot in 1995 and Colin Montgomerie did it in 2000, but it is another devilishly difficult green. To clear the fairway bunkers requires a 315-yard carry.
2015 average: 4.14 (rank 8)
6/18 6th (Juniper), 180 yards, par three
From a high tee to a green with a huge slope in it. Five holes-in-one - including Jamie Donaldson in 2013 - but Jose Maria Olazabal took seven in 1991 and lost by one to Ian Woosnam, while Arnold Palmer has also run up a seven.
2015 average: 3.08 (rank T10)
7/18 7th (Pampas), 450 yards, par four
What used to be a real birdie chance has been lengthened by 35-40 yards, while trees were also added and the putting surface reshaped. More bunkers - five - around the green than any other hole.
2015 average: 4.24 (rank 3)
8/18 8th (Yellow Jasmine), 570 yards, par five
The bunker on the right, about 300 yards out, pushes players left and from there it is harder to find the green in two up the steep hill. Still a good birdie chance and Bruce Devlin made an albatross two in 1967.
2015 average: 4.65 (rank 15)
9/18 9th (Carolina Cherry), 460 yards, par four
The tee was pushed back 30 yards in 2002. The raised green, with two bunkers on the left, tilts sharply from the back and anything rolling off the front can continue down for 50-60 yards.
2015 average: 4.08 (rank T10)
10/18 10th (Camellia), 495 yards, par four
A huge drop from tee to green on this dogleg left and over all the years of the Masters the most difficult hole. It was here that Rory McIlroy began to fall apart in 2011 with a seven, while Watson clinched the title in 2012 by making par in the play-off from the trees.
2015 average: 4.16 (rank 6)
11/18 11th (White Dogwood), 505 yards, par four
The start of Amen Corner. Toughest hole in 2011, 2014 and 2015, with the water front and left scaring many. Best remembered for Larry Mize's chip-in in 1987 and Nick Faldo's back-to-back play-off wins.
2015 average: 4.32 (rank 1)
12/18 12th (Golden Bell), 155 yards, par three
Probably the most famous par three in golf. Narrow target, water in front, trouble at the back, it has seen everything from a one to Tom Weiskopf's 13 in 1980. McIlroy four-putted it in 2011.
2015 average: 3.12 (rank 9)
13/18 13th (Azalea), 510 yards, par five
The end of Amen Corner. Massive dogleg left with scores ranging from Jeff Maggert's albatross two in 1994 to Tommy Nakajima's 13 in 1978. Bubba Watson's enormous drive here in 2014 left him with just a sand wedge into the green to set up a birdie.
2015 average: 4.54 (rank 18)
14/18 14th (Chinese Fir), 440 yards, par four
The only hole on the course without a bunker, but three putts are common on the wickedly difficult green. Course record holder Nick Price took eight here in 1993, while Phil Mickelson holed his approach en route to 2010 victory.
2015 average: 4.08 (rank 12)
15/18 15th (Firethorn), 530 yards, par five
Often a tough decision whether to go for the green in two across the pond on the hole where Gene Sarazen sank his 235-yard four-wood shot for an albatross in 1935. There have also been three 11s here.
2015 average: 4.60 (rank 17)
16/18 16th (Redbud), 170 yards, par three
Tiger Woods' memorable chip-in in 2005 came the same year as 73-year-old Billy Casper's 14, while Padraig Harrington and Ian Poulter are among 15 players to record holes-in-one.
2015 average: 3.01 (rank 13)
17/18 17th (Nandina), 440 yards, par four
The famous Eisenhower Tree has been removed after suffering storm damage, making for an easier tee shot on the hole Justin Rose double-bogeyed when one off the lead in 2007. Jack Nicklaus birdied here to take the lead as he won his 18th major in 1986.
2015 average: 4.15 (rank 7)
18/18 18th (Holly), 465 yards, par four
The drive through an avenue of trees was made much harder when the tee was moved back 60 yards in 2002. The fairway bunker from which Sandy Lyle got up and down to win in 1988 is now 300 yards away.
2015 average: 4.21 (rank 5)
Asked what he had learned from his previous good starts here, Rose said: "(Not to) get ahead of yourself. So much can happen around this golf course, and by no means am I worried about going wire-to-wire or anything like that.
"I think it's just about playing good, solid golf, executing my game plan and giving myself a chance on Sunday. There's so many shots out there, especially around Amen Corner, that can ruin a scorecard. So there's really no point in getting ahead of yourself.
"One thing I've learned on this golf course is that if you do make a bogey or two, when you start to chase around here to make up for it, it's not always the best decision. I've definitely learned the hard way a couple of times, which was obviously a good experience.
"My best chance was in 2007 where I finished fifth. I was one back with two to play (only to double bogey the 17th). I've been there on the back nine and it feels great."