Every time a player breaks a block, it makes a TNT with random fuse time. Try beating the game, its harder than you think .
Note: TNT will only spawn if your in survival.

You can now set a range for how long it takes the TNT to explode! Use the command /fuse to set the range.
For example,
/fuse 20-100 or /fuse 10-10 or /fuse 1000-2000.
Note that there are no spaces and it is in number of ticks, so 20 ticks = 1 second.