Henry Ernest Dudeney may be among the most significant puzzle inventors who ever lived ... The traveling salesman may use only a straight route between any two cities; he is not allowed to ...

that means switching puzzles frequently to find the perfect route to the orange dot. When you reach a dead end in the maze, switch the puzzle and look for a panel where that section is open ...

that means switching puzzles frequently to find the perfect route to the orange dot. When you reach a dead end in the maze, switch the puzzle and look for a panel where that section is open ...

The Resident Evil 3 train puzzle is based around working out a safe route through the subway, moving around blockages and finding a path through the tunnels in advance. What might make it tricky ...