A brain teaser puzzle for single player. Khun Phaen was a leading warrior in 9 Thai legends, he was jailed and tried to break out of the jail through the barrier of 9 sentries. To play, set the pieces up as per the challenges provided. Slide the pieces from the starting pattern until the biggest one is able to come to the lower edge of the board and pass through the gap (Khun Phaen has accomplished his jail break). Hours of pleasure, bury yourself in a time of thinking and reason.