The Da Vinci Cryptex 4

Rooms 1-10

Room 1

Follow the grid on the right as indicated by the arrows and notice the 5 triangles. Identify the letters in matching positions in the left grid, then enter this solution: AUNLO.

Room 2

Solve the equations in the order of the symbols on the right (top to bottom) to get the sequence 13, 11, 6, 17, 11. Convert the numbers to letters and enter this solution: KQFKM.

Room 3

Follow the path indicated on the right, as if you were selecting letters from the left page. Enter this solution: OELHD.

Room 4

Consider each letter on the left page in the order of the Roman numerals. Adjust each letter by the number on the right page that is surrounded by a similar partial circle. Enter this solution: IYBJR.

Room 5

On the clock, the hour hand points to the 2, and the minute hand points to the 10. Solve each of the equations on the right page based on these values. Given the answers you already have, you need to add 2 to each result. Place them in the correct order to get the sequence 10, 12, 14, 22, 6. Convert the numbers to letters and enter this solution: JLNVF.

Room 6

Rearrange the numbers on the left page so they are in the order indicated by the Roman numerals on the right page, giving 41873. Each of these numbers looks vaguely like a letter, so enter this solution: AIBTE.

Room 7

Follow the arrow through the letters on the left page, rotating them clockwise by the number of degrees indicated in the same position on the right page. The final number of degrees is incorrect and should be 0. Enter this solution: CSTZW.

Room 8

Read the letters in each column to see the gaps between them are increasing. Work out the missing letters at the bottom and enter this solution: VLOXQ.

Room 9

Multiple each number on the left page by itself to get the sequence 16, 1, 9, 25, 4. Convert the numbers to letters and enter this solution: PAIYD.

Room 10

Match the positions of the circled numbers to letters on the opposite page. Enter this solution: RAHFN 10 Enigmas.

Rooms 11-20

Room 11

Given that N is at position 14 in the alphabet, calculate the values of the numbers at each Roman numeral relative to this position to get the sequence 3, 11, 14, 2, 20. Convert the numbers to letters and enter this solution: CKNBT.

Room 12

Combine the partial letters on the left page with the partial letters on the right page. Enter this solution: BRUSH.

Room 13

Read the numbers on the right page from bottom to top. Follow the spiral on the left page and identify the letters at the positions matching the numbers on the right page. Enter this solution: PLCXE.

Room 14

Adjust the letters on the cubes by the numbers below each of them. Place them in order based on the number of visible dots on each cube. Enter this solution: PRRJV.

Room 15

Follow the paths indicated, counting the number of dots along the way, to get the sequence 8, 18, 24, 21, 19. Convert the numbers to letters and enter this solution: HRXUS.

Room 16

Follow the path as indicated on the right page. Find letters where the matching space on the left page shows a letter one previous to the space on the right page. Take note of these letters on the left page. Enter this solution: JSVGE.

Room 17

Add the numbers in the circles to the number of sides on the matching shapes; start from the smallest circle and go tot he largest, to get the sequence 6, 9, 15, 14, 18. Convert the numbers to letters and enter this solution: FIONR.

Room 18

There are 5 letters hidden in the face on the left, and 5 numbers hidden in the mirrored face on the right. You need to order the letters based on the positions of the numbers from 1-5. Enter this solution: STHDC.

Room 19

Each of the hands on the right, from bottom to top, is missing part of its image. Locate the letters at each of these locations on the larger hand on the left page. Enter this solution: REUPV.

Room 20

Each number on the left contains a certain number of circles. Count each of these based on the order of Roman numerals on the right page to get the sequence 4, 3, 6, 5, 5. Convert the numbers to letters and enter this solution: DCFEE 20 Enigmas.

Rooms 21-30

Room 21

Each of the letters on short bends is separated by 3 positions in the alphabet. Each of the letters on long lines is separated by 6 positions in the alphabet. Work out the missing letters, then place them in order according to the numbers on the right page. Enter this solution: CWSOM.

Room 22

The central square contains a value of 4. Each of the arrows on the right page indicates a direction to travel from this central square, which in turn leads to a mathematical function and number to apply to the square's value. This gives the sequence 3, 24, 4, 19, 2. Convert the numbers to letters and enter this solution: CXDSB.

Room 23

Add up the values on the corners of the shapes involved in each equation - square (13), triangle (9), arc (6). Solve the equations in order to get the sequence 16, 18, 13, 22, 4. Convert the numbers to letters and enter this solution: JRMVD.

Room 24

Identify the gaps between letters on the left page, then apply these to the right page. Enter this solution: IKNRW.

Room 25

Follow the path indicated on the right page, noting the letters at each dot on the matching grid on the left page. Based on the extra clue at the bottom of the right page, you need to also shift each letter to the right 2 in the alphabet. Enter this solution: ULCML.

Room 26

Examine each drawing and count the number of repeated objects within them to get the sequence 5, 4, 5, 8, 2. Convert the numbers to letters and enter this solution: EDEHB.

Room 27

Each cube on the left page has one known letter and two numbers - numbers on the right face indicate letters backwards in the alphabet by that number, and numbers on the top face indicate letters forwards in the alphabet by that number. Follow the order of cubes on the right page, and find the missing letters, which are U+5, R-7, F-2, M-4 and G+3. Enter this solution: ZKDIJ.

Room 28

As you go around the shape from the bottom left in a clockwise manner, find parts of the pattern that are incomplete and note the adjacent letters. Enter this solution: LKWMC.

Room 29

Follow the path on the right page. When you reach each given letter, adjust it with the number of the matching circle on the left page. Based on the extra clue at the bottom of the right page, you need to also shift each letter to the right 1 in the alphabet. Enter this solution: GLVHV.

Room 30

Read the alphabet in the order indicated and find the letters that are missing. Enter this solution: HTDNP 30 Enigmas.

Rooms 31-40

Room 31

Given the image on the right page is a mirror, flip the layout of the letters on the left page and enter them in the order of the numbers in the mirror. Enter this solution: OZNFL.

Room 32

From the first row on the left page, the right column value is always 1 less than the right column value. Work down the rows from the top to bottom to calculate the missing letters: (N+1)+3, (H-1)×2, (X+1)-15, (L-1)+7, (E+1)×4. Enter this solution: RNJRX.

Room 33

In the order of the Roman numerals, work out the directions indicated by the arrows, then enter this solution: SWWNE.

Room 34

The image on the right page is rotated 180 degrees. Find the letters matching the positions of each of the Roman numerals, which are VNIXS. Now find the letters in the English alphabet table that are equivalent but starting from the other end of the alphabet. Enter this solution: EMRCH.

Room 35

Find the letters that are not M, then enter this solution: HKWNU.

Room 36

For each row, multiply the first and last numbers, then add the second number, ending up with the sequence 19, 11, 25, 21, 12. Convert the numbers to letters and enter this solution: SKYUL.

Room 37

Find a series of letters hidden in the tree in clockwise order. Enter this solution: GRXOA.

Room 38

Go down the numbers from the top and add them to the matched numbers in the flipped image on the right to get the sequence 10, 17, 19, 12, 19. Convert the numbers to letters and enter this solution: JQSLS.

Room 39

Read the letters on the left page in the order indicated, and take note of those that are duplicated on the right page. Enter this solution: PTLEV.

Room 40

Count the number of triangles in each of the shapes and place them in order to get the sequence 5, 11, 4, 6, 6. Convert the numbers to letters and enter this solution: EKDFF 40 Enigmas.

Rooms 41-50

Room 41

For each number on the right page, first add 3 (based on the clue at the bottom of the left page). Now count this number of letters from the start of the text on the left page, not including spaces. Enter this solution: TOOTG.

Room 42

The interval between the connected letters is 3, so you can use this to work out the missing letters. Place them in correct order based on the Roman numerals on the right page, then enter this solution: SLREV.

Room 43

In each square, the intervals between letters are the same. Work out the missing letters on the squares, then enter this solution: DUGKH.

Room 44

In each figure, multiple the number by the number of dots, then convert the number to a letter in the alphabet. Enter this solution: TRWTU.

Room 45

Read each row from the top and take note of the even numbers to get the sequence 4, 8, 16, 12, 26. Convert the numbers to letters and enter this solution: DHPLZ.

Room 46

Starting from the F in the top right corner, insert letters in an ascending order around the shape. Enter this solution: GILMO.

Room 47

Count along the path of letters based on the series of 5 numbers on the right page to find the letters B, R, V, N, L. Based on the clue at the bottom of the right page, add 2 to each of these values. Enter this solution: DTXPN.

Room 48

For each figure, add the number to the number of triangles, then convert the number to a letter in the alphabet. Enter this solution: POWZP.

Room 49

In each clock, start from the given letter and count around to the position of the arrow, progressing through the alphabet. Order the letters based on the Roman numerals, and enter this solution: FQPOK.

Room 50

Working up from the bottom, locate letters in the positions of the dots on the opposite page. Enter this solution: RULPF 50 Enigmas.