There are three different ways you can play 2220. Each is equally "correct."
–Finger 1, 2, 3. This is REAL easy to think of, but if your hands are at all large, tricky to finger.
–Bar the three strings with your 1 finger. Lots of folks swear by this fingering. I mostly swear AT this fingering
–Finger 2, 1, 3. This moves your index finger back in a triangle shape, making for MUCH more room.
I prefer this on both Nylon as well as on steel-stringed instruments where the strings are much closer together.
–Finger 2, 1, 3. This moves your index finger back in a triangle shape, making for MUCH more room.
My fingers are too big. Is there a best way (or better) for making the D chord?
I find Snargle's method (an index partial barre across the third and fourth strings only, middle finger on the second) the easiest. Swivel the wrist a bit toward the headstock, so the fingers come across the fretboard at an angle, and lower the wrist, avoiding or reducing back-bending of the index. It should feel rather natural and relaxed this way. Similarly, to form the E shape 4442, I partial barre with the middle finger and fret the second string with the ring finger.
. . The VERY one I can't do . . .
I also like 2225, barring the 2. That's a honestly my preferred voicing for C, C#, D, Eb, E, and sometimes even F
I always play it Snargle's way as well. Why don't you play 222X? It is the same as the 2225 without the redundant and shrill A note?
Because it's a D, not an A? Doubled root is "Bog Standard" for four-voice writing and Just Sounds "Righter" to me. Not a fan of muting single strings in a strum, though I do it when fingerpicking.
I'm not doing badly with barre chords, but barre-ing 3 strings doesn't seem like it's going to happen. I'm an unusually bendy dude overall, but my first finger joint is really, really unhappy trying to bend backwards.
I'm surprised that nobody is mentioning the method I'm seeing most frequently on YouTube tutorials, which is using fingers 2-3-4. That's working GREAT for me! Especially for Knockin' On Heaven's Door, where I go from G to D to Am to C-- it's very easy for me to rearrange from G to this form of D, leaving my second finger already in place for the Am. When I lift the other two fingers up for the Am, I'm most of the way to having my third finger ready to land on C. I've tried all the other methods, and for this song, this is the only method working smoothly for me.
That said, I'm boldly stepping into week 4. LOL I've got lots of practicing and learning ahead of me. I can see other songs where the 2-1-3 fingering in particular might work even better.