Seriously, install a crafting guide mod. It's the only way to keep your sanity. xD I recommend [craftguide].
IMO a crafting guide mod should be part of Minetest Game. Most other subgames already have a crafting guide mod, but Minetest Game is still falling behind. :-(
To answer the recipe confusion: Well, TenPlus1 is wrong. In Minetest Game 0.4.15, the recipe is the same since TNT has been in introduced:
_W_
WGW
_W_
W=Wooden Planks or Acacia Wood Planks or other “planks” block (group:wood)
G=Gun Powder
_=Nothing
The recipe posted by TenPlus1 is only valid in the developer version (AFTER 0.4.15) of Minetest Game. It is NOT valid for version 0.4.15.
I'm creating
MineClone 2, a Minecraft clone for Minetest.
I made the
Help modpack, adding in-game help to Minetest.