Is chess the Only 100% skill based game?

addressing the original question, i see 2 possibilities. 1. either chess is a game of 100% skill, in which case so is go, shogi, checkers and many others. answer: no. or 2. chess is NOT a game of 100% skill. answer: no.

Math is not about skill, it is also luck. What if, during your test, you broke your pencil? That is just bad luck!
ummm j/k
chess is 100% skill.
as soon as you force people to play for a huge number of hands, poker turns into a pure skill game too.
laws of numbers.
If you play poker for a billion years, then yes. In the real world, not really.
Bulgarian Machine is correct for most games. Backgammon is a good example, over 50 games luck averages out and skill dominates.
Poker may be an exception, because in a big money game a rich player can terrorize a unrich opponent.
Chess is 100% skill, which makes it a cruel game. You lost because the other guy was smarter than you.

After watching The Big Bang Theory I will never play the plain old rock paper scissors again!
The game needs fire and water.
here's a hypothetical situation:
-2 players who play chess perfectly, it doesn't matter what moves are played, the game is played perfectly. (played with 100% skill)
-players play one time as white, one time as black
If someone can point out the factor luck in this situation then please be my guest...
Here's another hypothetical. 2 computer programs that pick a random move from the list of all legal moves in each position play each other. Whenever one program wins the game via checkmate, how is that not due to chance?
This hypothetical is just as absurd as that one.
your situation creates an environment where luck plays a 100% factor. Claiming that luck is a crucial factor in a game after you created an environment where luck is the only factor, is really not something special. Also a hypothetical situation is meant to be artificial and sometimes even absurd.
Every game including chess contains an element of luck. Especially among weaker players. In chess luck occurs often when a player plays a series of good moves without really understanding what they are doing, this is possible because there are a limited number of choices so even without knowing anything about the game you still have a chance of making good moves. Even in games between highly skilled players or engines luck still plays a role, since they cannot calculate all the possibilities and may arrive at a position that neither player had forseen but which favours one or the other, in this case you could say that the player/engine which has the favourable outcome has benefited from luck.
Luck plays a role in everything since there are always events which cannot be predicted. The rules of chess minimize the effect of luck through being purely deterministic, but luck is re-introduced through the game's complexity, which eliminates the possibility of being able to predict every possible outcome, therefore one can rarely be 100% sure that they are not missing something (even with engines) and the whatever is not accounted for in that 100% is made up by what we might call luck, which is in reality a term that describes what is beyond our capacity to predict.
12 years ago a german scientist wanted to know which game of 12 had the most skill. go won.chess had no skill he said. so there.

12 years ago a german scientist wanted to know which game of 12 had the most skill. go won.chess had no skill he said. so there.
Nice argument!

your situation creates an environment where luck plays a 100% factor. Claiming that luck is a crucial factor in a game after you created an environment where luck is the only factor, is really not something special. Also a hypothetical situation is meant to be artificial and sometimes even absurd.
Agreed that it creates an environment where luck plays a 100% factor. I did not make the claim that luck is a crucial factor in a game, though.
Basically, chess has no chance/luck elements built into it. Any of those elements are added by the fact that the game exists in our universe, which has lots of chance/luck elements.

Sure, but that isn't built into the game. That's built into him. Sure you can get lucky, but it isn't the game making you lucky, it's your opponent.
Sure, but that isn't built into the game. That's built into him. Sure you can get lucky, but it isn't the game making you lucky, it's your opponent.
Yeah this is a good point. The luck element is a result of the complexity of the game, which makes it impossible for any person or engine to see all of the possible consequences of a given move.
Deciding the color of arms by drawing pawns is definately chance.