Quote Originally Posted by Ishmael View Post
Well, that could have gone better. I was apparently too tardy in flipping the crusher lever, and so the Wither managed to get out of its bedrock indentation. After three deaths I conceded the melee approach wasn't going anywhere and sent in some iron golems which managed to kill it - two survived and are now wandering the spawning chamber. Your self-repairing walls really paid off here .
I'm glad it worked out ok. Was there any damage to the mechanism?

FWIW, therother and I killed a 'free range' Wither once without much difficulty. We used fully enchanted diamond armor, heavily enchanted bows, and chugged a few potions before we spawned it. I think the thing died in about 30-45 seconds. So, it's very doable if you have the right kit.