var grid = new jMatch3.Grid({
    width: 6,
    height: 7,
    gravity: "down"
});

var piece = grid.getPiece({ x: 0, y: 0 });

piece.object = { type: "gem" };-

piece.clear();

grid.debug({
    empty: "-",
    gem: "g"
});

var matches = grid.getMatches();

grid.clearMatches();

grid.applyGravity();

/*
 * options:
 * - width (default 10)
 * - height (default 10)
 * - gravity (default false): "up", "right", "down", "left", or false 
 */
var grid = new jMatch3.Grid({
    width: 6,
    height: 7,
    gravity: "down"
});

grid.coordsInWorld({ x: 10, y: 10 }); // return false

var piece = grid.getPiece({ x: 4, y: 4 });

var neighbour = grid.neighbourOf(piece, "left");

// return { up: theUpPiece, down: theDownPiece, right: theRightPiece, left: theLeftPiece }
var neighbours = grid.neighboursOf(piece);

grid.forEachMatch(function() {
  // Your scoring stuff
});

var matches = grid.getMatches();

var row = grid.getRow(0);

var column = grid.getColumn(0);

grid.clearMatches();

grid.swapPieces(piece1, piece2);

var fallingPieces = grid.applyGravity();

grid.debug({
    empty: "-",
    gem: "g"
});

var lastEmpty = jMatch3.Grid.getLastEmptyPiece(pieces);

/*
 * Params:
 * - grid
 * - x
 * - y
 */
new Piece(grid, 0, 0);

piece.clear();

var relativeCoordinates = piece.relativeCoordinates("right", 1); // return { x: 1, y: 0 }

var neighbour = piece.neighbour("right");

// return { up: theUpPiece, down: theDownPiece, right: theRightPiece, left: theLeftPiece }
var neighbours = piece.neighbours();

var matchingNeighbours = piece.matchingNeighbours();

var deepMatchingNeighbours = piece.deepMatchingNeighbours();