Big Brain Sudokus Hack 1.0 + Redeem Codes

An improved Sudoku app featuring nine difficulties starting from super easy to insane.
Two different kinds of pencil marks allow you to be more efficient when solving a puzzle.
Multiple selection of cells creates a fast way to fill in pencil marks and numbers.

You can create up to 5 simultaneous games without having to quit or finish them first.
Challenge your friends and family by sharing hard or interesting puzzles.

Review your statistics for each difficulty and see how much you improve.