Chess Magic

Chess Magic (チェス魔法, Chesu Mahō) is a Caster-Type Magic that revolves around the rules of chess. The caster can either create a chess board and pieces completely out of their own magic and use it to manipulate a battle, called the Chess Master Style, or summon beings that represent chess pieces, called Wonderland Style. Regardless of style this magic begins with the command 'Opening' referring to the begining and first sequences of moves and can only be ended with the command 'Checkmate'.

Both styles have a limited range, equally the dimensions of a chess board, which is 8 boxes in width and 8 boxes in length. The boxes, depending on the mage's magical powers, can be 1 square foot, being the absolute minimum, while the absolute maximum is unknown.

Chess Master Style
If the caster creates a chess board and pieces out of their own magic to manipulate a battle, there first must be enough people involved in the battle to fill every role (this includes the caster who fills the role of King regardless of gender) and they can allow the "pieces" to move on their own, monitoring them on the board, or move them as they deem necessary. When a "piece" is moved by the caster they will be teleported to the desired location.

The problem with this form is that capturing the opposing pieces isn't as simple as with a normal game of chess. If you wish to "capture" an opposing "piece" the "piece" you are using must be powerful enough to overcome the "piece" you are trying to "capture".

Wonderland Style
The caster is capable of summoning beings that represent chess pieces. This can be done one at a time or as a whole. Each summoned piece is only as powerful as the piece would be in a game of chess, though one should remember that even a humble Pawn can capture a mighty Queen, so don't judge strength solely on piece assignment.

If the caster chooses to summon pieces one at a time for battle the piece is several times stronger than if every piece was summoned at the same time. It is also important to remember that the pieces look different depending on who the caster is and their likes.

Black Pieces

 * Black Pawn (黒のポーン, Kuro no Pōn): the Pawn, the most basic piece, the easiest to summon and is the weakest in terms of brute strength and durability. This piece is ideally summoned as the total eight available in chess. They can only advance foreward and attack diagonally. They do have three special abilities.
 * En Passant (ついでに, Tsuideni): if an opponent tries to avoid the attack of the Pawn, it can turn and strike the opponent's back. This can only be done once per Pawn and doesn't affect their foreward advancement.
 * Promotion (プロモーション, Puromōshon): If the Pawn reaches the outer limit of the Caster's range the Pawn is promoted to a higher rank of the Caster's choosing. This allows the Pawn to transform into any other piece, except the King, regardless of how many of that piece there is.
 * Double Step (ダブルステップ, Daburu Suteppu): the Pawns can move twice as fast as they normally can, however to use this ability it has to be the first thing the Pawn does after being summoned.
 * Black Knight (黒騎士, Kuro Kishi): the Knight is one of the fastest and most durable pieces the caster can summon. The Black Knight is armored and carries a single sword at all times and the Caster can only summon two, unless a Pawn manages to use Promotion.
 * L Leap (リットルの跳躍, Rittoru no Chōyaku): the Knight can and has to use this ability in order to move. The Knight jumps high into the air, moving foreward, backward, left or right then suddenly to one side or another to form an L shape. After jumping the Knight comes down ontop of their target, if there is a target where they land.
 * Lance Strike (ランスストライク, Ransusutoraiku): the Knight's only attack and is used after L Leap. The Knight impales the target with its sword, coming down in a straight line with their body in the shape of a lance.
 * Black Rook (黒ルーク, Kuro Rūku): the Rook, the most sturdy piece the caster can summon, it can only move in straight lines. The Rook takes on the appearance of a creature on a stone pillar. The caster can make them look the same or different. If the caster makes the Rooks look different then one will have a more demonic look with wings and wields a sword and the other will look like a spikey suit of armor and wields an ax. If the caster wants them to look the same, then it is up to the caster which form they take.
 * Rampart Rush (城壁ラッシュ, Jōheki Rasshu): the only attack the Rook has. It charges foreward and, with momentum behind it, strikes down the target by either attacking with its weapon or simply slamming into them.
 * Black Bishop (黒の司教, Kuro no Shikyō): the Bishop, this piece is somewhere in the middle power wise, can only move diagonally on the color it started on. The Bishop looks like the traditional idea of a wizard, having a pointed hair, robes and a staff or wand.
 * Black Queen (黒の女王, Kuro no Joō): the Queen, the hardest piece to summon and the strongest, fastest and most maneuverable piece overall. The Queen, which looks like a large Pawn, takes on a more humanoid appearance with sharper claws and elongated 'antenna'.
 * Black King (黒王, Kuroō): the King, one of the hardest to summon and the weakest at first. The King takes on a slightly demonic appearance and weilds a sword. The longer the King is present the stronger it becomes and after a certain amount of time activates the ability 'Endgame'.
 * Endgame (大詰め, Ōdzume): the most powerful and dangerous ability of all the pieces. The King becomes the most powerful piece in terms of strength and durability. This ability is easiest to activate if the Caster only summons the King.

Trivia

 * I have been trying to figure out how to make this magic work for some time
 * The Black Pieces are Heartless from Kingdom Hearts
 * The second style is called "Wonderland Style" as a reference to Alice in Wonderland because there are characters that represent the pieces of chess