I just found that aside from Chess, there are three other variations I can play on my iBook.

From the Chess Help File:

Crazyhouse follows the same rules of movement as chess, with the winner being the first player to checkmate his or her opponent. However, when players capture their opponent’s pieces, they receive the same piece of their color to drop into the game at any time. For example, if a player captures a knight, he or she can later drop a knight anywhere on the board, even if it brings about check or checkmate.
In crazyhouse, a player cannot drop a pawn into the 1st or 8th rank. Also, you can promote a pawn to any piece, but if that piece is captured, it reverts back to a pawn for the capturer’s use.

Suicide follows the same rules of movement as chess, but there is no castling. The winner is the first player to lose all of his or her pieces or to have no legal move left. The king doesn’t hold a special significance, and it can be sacrificed like any other piece. Also, players can promote pawns to a king.

Losers follows the same rules as Suicide. However, the king holds the same significance as in chess, and players must reply to checking moves first. But if a player mates, he or she loses.

Is this part of Wesley So’s discipline? I don’t think so (pun unintended), but it might just help him grow his repertoire of moves. Funny thing though is I’ve lost as much as I did with regularl chess yet it felt fun losing. Maybe because it continues to teach me how to think differently from the way I used to.
In life, maybe you can ask yourself: “What will I do if I can do anything I want, regardless of time, money, ability, training, location or physical condition?” You might just have a Eureka moment.

Extra: For book lovers:

There is a great adventure book that used chess and a certain Chess set as its topic. This I think is way much better than a recent around-the-world-mystery-adventure in all aspects. Persons are considered in their equivalent chess piece. Pawns, Black  knight, bishop, qhite queen… and a play on the number eight, the chessboard (8×8)… fibonacci sequence… the puzzle of using the knight to cover all squares of the board in exactly 64 moves… music (octave), etc… I wonder if the sequel has been finished or will be out soon.. The tile of the book is The Eight by Katherine Neville.