Weighted loaded 6 dice
If you usually play dice game, you should be caution that someone cheat with loaded dice. What is loaded dice? Loaded dice is also called fixed dice or gravity dice. Every time you roll it, it will be the same spot you fixed. Inside the dice, there are some special material weight on the one side. For example, if you want spots 6, there is a weight on the 1 side. Many clients will fix 2 sides of one dice. The probability of these two spots is equal.
Loaded dice using in gamble game is illegal. If you want to protect yourself in dice game, please ask for checking the dice.