Message: Return type of CI_Session_database_driver::open($save_path, $name) should either be compatible with SessionHandlerInterface::open(string $path, string $name): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Message: Return type of CI_Session_database_driver::close() should either be compatible with SessionHandlerInterface::close(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Message: Return type of CI_Session_database_driver::read($session_id) should either be compatible with SessionHandlerInterface::read(string $id): string|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Message: Return type of CI_Session_database_driver::write($session_id, $session_data) should either be compatible with SessionHandlerInterface::write(string $id, string $data): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Message: Return type of CI_Session_database_driver::destroy($session_id) should either be compatible with SessionHandlerInterface::destroy(string $id): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Message: Return type of CI_Session_database_driver::gc($maxlifetime) should either be compatible with SessionHandlerInterface::gc(int $max_lifetime): int|false, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice
Play with the arrows and see if you are among the brightest league of mathematicians! In this game, your task is to swap two sets of color arrows so that their positions are exchanged. When the game opens, you will be given a rectangle containing 8 arrow tiles, with 4 purple tiles on the left and 4 yellow tiles on the right, plus an empty space that separates the two sets of arrows in the middle. To swap the positions of the arrows, you may click a tile so that it moves to the empty space located in the direction that the arrow is pointing to, or jump over a tile of the opposite color and move to a blank. Once moved to the front, the arrows cannot move backward, for example, a purple arrow which is pointing to the right cannot be moved to the left after it has moved one step to the right. If no more moves can be made, you may click the Reset button under the puzzle to start again. Take notice of your score at the top of the screen and act quickly before it counts down to zero!
How to play: Solve Lucas' problem in a swift manner!
