While some cases are obvious, there are others where the percentage difference is so small that it’s very hard to tell. After all, you just need to look at some cards, how hard can it be? Well, it’s trickier than you might think. With such a simple game, players find themselves filled with confidence before they start. Once that happens, the game ends and that player is declared the victor. The game continues until one player has three Arrow Cards. After a challenge is complete, all the remaining Color Cards are removed and a new round is set up with a new Arrow and Color Card. If, however, all of the cards were in the correct order, the Arrow Card goes to the player whose turn was directly before the challenging player. If the cards are not in ascending order of color percentage for the current Arrow Card, the challenging player wins the current Arrow Card (which acts as a point). When a player challenges a row, all of the cards in the existing row are flipped over to reveal their color percentages. In this example, the player has decided the card has more green than the first, but less than the second. It’s important to note that the top Color Card is already visible, so you know before you make your choice whether or not it’s going to be an easy card to place. On your turn, you either take the top card from the Color Card pile and place where you think it belongs in the row of cards, or you challenge the validity of the entire row. Gameplay is very simple, you’re attempting to correctly place new Color Cards based on how much of the Arrow Card’s color it has.

To set up the game, the deck of 92 Color Cards is placed face-up on the table, one of the 12 Arrow Cards is flipped up, and the top Color Card from the deck is placed next to the Arrow Card on the table. It is designed by Wolfgang Warsch who is known for such hits as The Mind, Ganz Schön Clever, and The Quacks of Quedlinburg. Illusion is a card game for 2-5 players that tests your spatial reasoning.

List of illusion games