In The Office (UK), Gareth makes the ludicrous claim that he can beat any hand of Top Trumps: Monster Trucks because he used to practice against dummy hands as a kid, so has memorised every single different hand that his opponent could possibly have and adjust his cards accordingly.
While he is trying to show off, that itself seems like it would be impossible unless you are Rain Man.

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Can you give stats/facts to the game? How many cards are there? Is it just we shuffle the deck and the opponent gets half and I get half or are not all cards given our/more than 1 opponent? How does the game play? Ist it just play a card per turn and the higher stat (in one category) wins? Or does the game work differently?
Edit: Or is it like. We both get half the deck, but can only use the top card. So one player chooses a category and the card with the higher stat in that category wins? In that case there is no way to always win, cause you don't know which cards are in your deck and which in the opponents nor their order.
*copied from Google
There are 30 cards in a deck.
Basic Gameplay Deal: Shuffle the deck and deal all cards face down, as evenly as possible, to all players.
Hold Cards: Each player holds their cards in a face-down stack, looking only at the top card.
Start: The player to the dealer's left starts by choosing a category (e.g., "Speed," "Intelligence") from their top card and calls out the value.
Compare: Other players read out the value for the same category on their top card.
Win the Round: The player with the highest value wins all the cards played in that round.
Collect: The winner places these cards at the bottom of their own stack.
Next Round: The winner of the round chooses the category for the next round.
Winning the Game: The first player to collect all the cards wins.
He has only information about the so far played cards, so memorising all decks, doesn't really give him an edge, since he can't determine what hand the opponent actually has.
It should be pretty easy to generate a hand that will not be able to win. Therefore his statement is false.
Problem is, I don’t know anyone who actually plays by the official rules. Our house rules are each player starts with a hand of five cards, with a communal draw pile. Each round, a player plays a card and nominates a category. The other players can play any card from their hand, and whoever’s card has the highest number in the category wins the round, and collects the trick. Every player then draws a card and the player who won the round begins the next round. Player with the most tricks wins the game. Most people I know who play use some similar variation.
It’s anecdotal but I’ve been absolutely thrashed by younger family members at Frozen Top Trumps because it was their particular favourite game of the moment. They had memorised the bulk of the cards through daily play. His claim is clearly an exaggeration to attempt to look better but there is a tactical element to Top Trumps. Knowing that your card is Elsa (or a Ferrari for example) has the best magic points (or highest BHP) means that you challenge the opponent on that stat.