@xlipz chapter 29 is the chapter right after the 10 of hearts beach arc. but there are quite a lot of differences between the live action and the manga.
the first game was something like a intelligence luck game ( i dont know how to explain it)
another difference that i thought was pretty big was the part at the end of the 10 of hearts arc
basically i think you should read the entire thing from beginning to end, you wont feel bored just because you know the plot.