EDIT: That wiki guide above might also be more useful compared to my old guide.
Works better than the trash strats I had before. What do you suggest?
Here´s a little guide I wrote ages ago! It´s specifically written for absolute beginners, as I´ve just learned the game at that time. Maybe I tried to hard to be funny, but hopefully it´s useful otherwise!
http://puyonexus.com/forum/viewtopic.php?t=1865
The most basic advice I can give it try playing in the stressfree endless mode, and every time you would normally connect 4 pieces, put another color between it and remember that THIS is now your "fuse". Put some more Puyo of the same color there, but put another color puyo between THAT, and now that one is your fuse.
You simply block 4 pieces from touching with another piece, and pop THAT one instead. Boom, 2 chain! The rest basically extends from that logically,
It definitely takes a while to wrap your head around it, and I definitely felt like a complete idiot at first. But soon it starts getting much more intuitive. It just is harder to "read" the playfield compared to Tetris, where you have these very clearly outlines of the blocks and gaps.
If you just keep doing the most basic 2-chains, you will soon be able to see those opportunities much clearer. Make sure to play on Easy at first, since that gives you only 3 colors, which is much easier at first. Later on with 4 colors it actually is more useful since it keeps you from accidentially triggering chains before you´re finished making them.