Phillip hugged the monster happily.
The word missing in the sentence is "is". The correct sentence should be "The monster is on the stairs."
If the attacking monster is switched into Defence position, the attack ends. Damage Calculation is not entered, you do not compare the monsters' ATK or DEF.
If you switch it from attack position to defence position you can't because no monster can attack from defence position except from "Total defence shogun". But if you switch it from defence position to attack position then you can attack
A face-down monster can only be Normal Summoned in face-up ATK position.
It depends.If the Monster declares an attack or already attacked and it is switched to defense position by a card effect (like Enemy Controller or Book of Moon for example) the Monster's position cannot be changed by you, the controller, because it declared an attack already. A Monster's position cannot be changed by their controller for the rest of a turn after they declared attacked with it.If the Monster did not attack yet this turn and their position is changed due to a card effect, it can be changed by the controller.
You can set the monster you tributed for, but the tributed monster is sent to the graveyard
Only the Spell card Darkness Approaches can flip a monster into face-down Attack position. By discarding two cards, Darkness Approaches lets you flip one face-up monster face-down without changing the battle position (so a monster may end up in face-down Attack position).
Yes it is.
nose tackle
No, a monster cannot manually change battle position on the turn it was special summoned, though it can be changed by an effect.
Assuming the defending monster is also in attack position, both monsters will be destroyed.
You cannot tribute summon a monster in face up defense position. You can either tribute summon a monster in face down defense or face up attack position. If you want to summon in face up defense, you need to special summon.