This puzzle involved his beloved city, and he resolved to have the answer, at whatever cost.

Many puzzles in these games involve gathering and using items from their inventory.

The puzzles involve a visitor to the island who meets small groups of inhabitants.

Another fiendish puzzle involved the ten tools scattered throughout the game's locations.

They have specific rules, as do multiplayer games, but mathematical puzzles don't usually involve competition between two or more players.

Simple puzzles involving switches and pulleys must be solved in order to progress within the levels.

The puzzles involve the physical features of the Zoombinis as part of the solution.

It means that the puzzle must somehow involve male chauvinism, since the woman is an ardent feminist.

Problems are quite challenging but ultimately solvable; the last major puzzle involving opening a Chinese safe is particularly ingenious.

Several other puzzle or board games involve partially exposing a naked girl's picture or drawing as a reward.