I Have seen others ask how to make tnt not break blocks but i now know (i think) that you need at least 3 commands for it
1. Summon Tnt (/summon)
2. Spawn Water Before Tnt Explodes (/fill)
3. Clear Water (/fill air)
ANy one know for sure this will work??
P.S this is for a Pvp Map i am making so yea thats y its under a map area