N-Mark Spade Panel
From the Super Mario Wiki, the Mario encyclopedia
N-Mark Spade Panels, also known as Matching Game Panels, Card Matching Games, Matching Game spaces, or N-Spades, are Spade Panels in Super Mario Bros. 3 that appear on the world map every 80,000 points gained, and they allow Mario or Luigi to play a card game where they must flip cards to match pairs of images with only two mistakes allowed before exiting the game. When the next 80,000 points are earned, the player can resume the game until completed. For each card pair successfully matched, the player gets that prize for their inventory, for a total of nine prizes per game.
The game randomly selects one of the eight predefined configurations. Here are the possible combinations. The fourth, fifth, and sixth from the left on the bottom row will always be the Super Mushroom, Fire Flower, and Starman respectively.
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