Professor Layton and the Unwound Future/Layton's Challenges

Layton's Challenges is a set of puzzles only accessible from the Bonus tab and has special requirements to be unlocked. These puzzles are harder than anything else in the game, so you will need every bit of your puzzle-solving skills to find the solution.

Caution! This guide contains information about each puzzle including all three hints and the correct answer. If you do not want to see the solution to a puzzle and spoil the fun of figuring it out, scroll down carefully. The answers are hidden within the spoiler tags, so don't peek in them unless you're really stuck!

The Storyteller's House
This house is unlocked by finding all the stickers for the picture books and completing all 3 of the books.

Puzzle 154

 * Name: A Stacked Deck
 * Picarats: 50

Description: There are 52 cards in the deck below--26 black and 26 red--and no jokers. After shuffling the deck and randomly cutting it in two, you count 23 cards in the stack on the left. So, what's the difference between the number of red cards in the left stack and the number of black cards in the right stack?


 * Hint 1: Don't let the fact that this is a number problem confuse you. You should be able to figure out the answer using basic arithmetic if you can figure out what to look for.
 * Hint 2: The quickest way to answer is to try out some placeholder numbers. There are 23 cards in the left pile. Pretend that there are 10 red cards and 13 black cards. There are 52 cards in a deck, so there are 29 cards in the other pile. Try to divide the piles up like so.
 * Hint 3: Continuing on from Hint Two, you can calculate the color of the cards in the right stack based on how many red and black cards are in the left stack. So, subtract 10 from 26, and you get 16 red cards. Then take 13 from 26, and you get 13 black cards. You now know the difference between the number of red cards in the left stack and black cards in the right! Now try a different set of numbers to see what you get.
 * Super Hint: Keep plugging in different numbers. If the left stack has five red cards and 18 black, the right stack will have 21 red cards and eight black. Now compare this result with the one from Hint Three. Look at that! The difference is the same no matter how many of each color there are!

Puzzle 155

 * Name: Three More Blocks (US) / Block Parity (UK)
 * Picarats: 60

Description: Maneuver the three colored blocks into the matching goal squares on the board. All three blocks must be in place at the same time to complete this puzzle. To move the blocks, rotate the board 90 degrees left or right by tapping the arrow buttons below.


 * Hint 1: If you just keep rotating the board, you'll solve it eventually, right? Actually, no. If you don't plan ahead, you can get stuck. But if you do think ahead, it's much easier than you might expect!
 * Hint 2: If you're not careful, a block might get trapped somewhere and make the puzzle impossible to solve. If you think you're completely stuck, just reset the puzzle.
 * Hint 3: The trap you need to avoid is the space next to the red goal square. If a block ends up in here, you'll have to reset the puzzle and start over.
 * Super Hint: If you're trying to move the blocks out from the starting quadrant all at once, instead try moving them to the other side of the board one at a time. If you can figure this out, the rest shouldn't be too hard.

Puzzle 156

 * Name: ABCs ... and Ds
 * Picarats: 50

Description: Slide block A into slot A. Slide block B into slot B. Slide block C into slot C. Slide block D into slot D. That's all there is to it! Well, that and you only have 13 moves...


 * Hint 1: The shape you're moving the letters around in is completely symmetrical, and there are only two blocks in the way, so you should be able to solve this puzzle with a regular, systematic series of moves. You can start over as many times as you want, so think about the most efficient way to move the letters into place and see what works.
 * Hint 2: You'll run out of moves if you try to maneuver the letters into place one by one. Think about how you can rotate all of the letters into position while making your moves.
 * Hint 3: Here's part of the solution: Move the lower blue stone over to the right, and slide the C all the way down. Now move the upper blue stone into the A slot, and slide the D all the way left... Can you figure out the pattern now?
 * Super Hint: Continuing on from Hint Three, put the lower blue stone into the B slot and move the A all the way up. Now you can slide the C into its slot. Then slide the B all the way right, and you can slide the D into its slot. You're halfway done! And the rest looks pretty easy, right?

The Hotelier's House
This house is unlocked by obtaining every toy car course and completing them.

Puzzle 157

 * Name: The Crazy Keyholes (US) / The Curious Keyholes (UK)
 * Picarats: 50

Description: To open the door, you need to combine the three stamp-like key pieces (1, 2, and 3) so they form shapes that can be inserted into all the keyholes (A through G) that will accommodate them. The key pieces can be rotated left or right to fit together, but they can't be turned over. Check off all the keyholes that will work.


 * Hint 1: Don't forget about the Memo function! You can use it to draw in the shapes.
 * Hint 2: The most important thing is how you use key piece 2.
 * Hint 3: You can probably tell just by looking at it that C won't work. Perhaps surprisingly, B does work! Remember, you can rotate the key pieces left or right, but you can't flip them over. Be sure to consider how each key piece can be rotated before trying to combine all three together.
 * Super Hint: C doesn't work. A, B, and G all work. Of the remaining three--D, E, and F--one doesn't work. Which is it? You know, that z-shaped one is pretty suspicious...

Puzzle 158

 * Name: From A to D
 * Picarats: 40

Description: It takes 15 minutes to travel from station A, the first stop on the line, to station B. It takes five minutes to travel from station B to station C. It takes 10 minutes to travel from station C to the last station, station D. However, it doesn't take 13 minutes to travel from station A to station D. Given that this is a straight railway line with no branches, how many minutes does it take to travel from A to D?


 * Hint 1: It's impossible? Well, the conditions are all true, so there's no funny business going on there. Be flexible in your thinking and see if you can figure it out.
 * Hint 2: You need to reverse your thinking!
 * Hint 3: Station B must come after station A, right? Well, no, actually. That's just the order of letters in the alphabet!
 * Super Hint: In order to fulfill the conditions of this puzzle, the order of the stations must be A to C to B to D. With this knowledge, you should be able to figure out the time it takes to get from station A to D.

Puzzle 159

 * Name: Impassable Gate 2
 * Picarats: 70

Description: "Well, well. Can you make it to the top of this gate again? You may think you've solve this puzzle before, but think again!" This time it's much more difficult.


 * Hint 1: There are multiple ways to solve this puzzle. Here's one example: First, move the yellow block above Professor Layton and Luke up and to the right so that it's mostly on top of the red block. Then move Professor Layton and Luke over to the left. Start from here and see how far you can get!
 * Hint 2: Continuing on from Hint One, move the red block down to the bottom and then the yellow block back on top of it. Now move the blue block down and over to the left on top of Professor Layton and Luke.
 * Hint 3: Continuing on from Hint Two, move the red block up and then the yellow block up, and slide Professor Layton and Luke to the right under the red block. Now move the blue block down to the bottom and over to the right against Professor Layton and Luke.
 * Super Hint: Continuing on from Hint Three, move the yellow block over to the left wall and down on top of the blue block. Then slide the green block down as far as you can, and move the brown block up into the exit square. Now move the green block back to where it started. See if you can figure out the rest.

The Messenger's House
This house is unlocked by getting all the errands for the parrot and finishing them.

The Time Traveler's House
This house is unlocked by clearing every puzzle in the main story, Puzzles 001-153.

The Puzzle Keeper's House
This house is unlocked by clearing every other house.