import { CellCollection } from '../CellCollection';
import { Grid, CellValueChange } from '../Grid';
export declare class CollapsedValueSolver {
    /**
     * Searches the grid for values with a single potential and if it finds any, returns an
     * array of changes to apply to the target grid.
     * @param targetGrid The grid to solve.
     * @returns An array of changes to apply to the grid to solve it.
     */
    static solve(targetGrid: Grid): CellValueChange[];
    /**
     * Searches a given Row, Column or Block for cells where its potentials have collapsed into a
     * single value. It then returns an array of objects to remove the potential to other
     * cells in the block.
     * @param block A reference to a row, column or block that holds 9 unique values.
     * @returns An array of changes that can be applied back to the grid.
     */
    static solveForBlock(block: CellCollection): CellValueChange[];
}