Rating Game

The Rating Game (レーティングゲーム Rētingu Gēmu) is a competition between two Devils with a peerage. The Rating Game shares many similarities with the board game Chess.

Summary
The Rating Game is created after the introduction of the Evil Pieces by Ajuka Beelzebub. The Rating Game is used to measure a Devil's strength which will reflect their social standing in the Underworld. In fact, the Rating Game is so famous that the top ten rankers are considered as heroes to the Devils.

Rules
The game takes the form of a strategic battle between the King and his/her pieces. It is fought on a map of their choosing, and can be a perfect replica of anywhere they want. Only matured Devils are allowed to participate in official Rating Games. The servants of the Devils are named after the pieces of chess: Rook, Knight, Queen, Bishop, and Pawn. Only Devils with peerages can become the King piece. The maximum number of players in a Rating Game is 16 and like the game of chess, the players lose when their King loses.

All participants are placed into four categories: Power, Technique, Wizard, and Support.

Aside from the normal rules, there are two more special rules for Rating Game, the first being the Dice Figure Game and the second being the Scramble Flag Game.

Dice Figure Game
A variant of Rating Game with the different mechanic. Instead of long full team battle, it will be a short battle with limited member. Both Kings will row a six-sided dice (one each) and the number added up from both Kings will determine the value of Pieces (servants) to be sent. However Kings are not forced to completely use all the points (with the total value of eight, Kings can send two Knights and have two left over), which will be wasted and not added to next roll. Servants that consumed two or more Pieces of its kind will have the added-up value of the Piece (a servant that has consumed two Pawn Pieces will have the value of two, or a servant that have consumed two Knight Pieces will have the value of six). The value of each pieces are as following:
 * Queen = 9 Pawn.
 * Rook = 5 Pawn
 * Knight = 3 Pawn
 * Bishop woth 3 Pawn
 * Pawn worth 1 Pawn (Base value)

Scramble Flag Game
A variant of the normal Rating Game.

Trivia

 * The current top three rankers of the Rating Games are Diehauser Belial (ranked 1st), Roygun Belphegor (ranked 2nd), and Bedeze Abaddon (ranked 3rd).
 * According to Yuuto, the top 20 rankers of the Rating Game are said to be in different classes, with the top 10 rankers being considered heroes of the Devils.
 * The top five rankers have never moved from their ranking position since the start of the Rating Game.