Knight Move is an Alexey Pajitnov created, Nintendo-published video game released exclusively for the Famicom Disk System in 1990. The player takes on the role of a knight (chess piece) who bounces around an 8x4 gridded board collecting hearts. Each time a square on the grid is bounced on, it changes colors. After being bounced on three times, the square will disappear completely, only to return after the hearts on the stage have been acquired. The only difference between Game A and Game B is that in Game B, more than one heart will be present. The amount of hearts and the speed of the game increases the more the player progresses in Game B while everything will remain the same in Game A regardless of how long they play.

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