- On Thin Ice ice stairway puzzle: Slide the numbered ice blocks into their matching slots.
- Puzzle timing: Complete the stairway after finding the fire extinguisher and cleaning oil.
- Chapter route: Restore the phone, open the mailbox, and recover Hacksaw’s evidence.
- Important items: Crowbar, wrench, small key, screwdriver, triangles, chart, and photo.
- Final objective: Combine the letter, chart, and photo to open the secret safe.
On Thin Ice ice stairway puzzle solution
The On Thin Ice ice stairway puzzle solution begins outside the cabin, near the burning car and the locked evidence box. After examining the area, clear the tarp from the grill to collect the fire extinguisher and cleaning oil. Brush snow away from the nearby locked box, then use the cleaning oil to remove its rust. The box cannot be opened yet, so leave it prepared for a later return.
The ice blocks are located beside the burning car. Interact with them to begin the Ice Stairway puzzle. The objective is to slide the numbered blocks until each number reaches its correct slot. Extra blocks are available, but the open spaces are limited, so plan each movement before committing to a slide.
| Puzzle Element | Purpose | Recommended Action |
|---|---|---|
| Numbered ice blocks | Main movable pieces | Slide them toward matching slots |
| Extra blocks | Temporary space and maneuvering pieces | Use them to create room for other blocks |
| Numbered slots | Correct destinations | Match each block to its corresponding number |
| Open spaces | Movement lanes | Preserve at least one useful space while solving |
Do not move blocks randomly. Use the spare pieces to open a lane, then place the numbered blocks one at a time in their matching positions.
The puzzle does not require a separate item before starting, but it is part of a larger investigation sequence. Solving it gives access to the next stage of the outdoor area, where the fire and bodies can be examined. If the layout becomes difficult, focus on restoring movement space first rather than forcing a block into a slot too early.
Before Starting
- Collect the fire extinguisher
- Pick up the cleaning oil
- Clear snow from the locked box
During the Puzzle
- Identify each target slot
- Preserve an open lane
- Use spare blocks carefully
After Solving
- Extinguish the burning car
- Search the bodies
- Continue the evidence route
How to reach the Ice Stairway puzzle
The Ice Stairway puzzle becomes available after several early Chapter 1 investigation steps. Start at Kate’s desk, where the crime scene tape blocks access. Take the chip reader from the box, place it on the desk, and inspect the monitor. The bold numbers on the chip reader provide the computer code 63849.
After Kate and Murphy leave the station, investigate the snowy outdoor route. Collect the wheel, nozzle, and fuel, then use them on the snowblower. Once it works, clear the snow to reveal the metal numbers. Place those numbers on the board and arrange them to form 40827. Enter that code on the cabin keypad to continue.
| Stage | Required Item or Code | Result |
|---|---|---|
| Desk investigation | Chip reader | Reveals the monitor clue |
| Computer access | 63849 | Opens the next investigation step |
| Snowy route | Wheel, nozzle, fuel | Repairs the snowblower |
| Cabin entrance | 40827 | Unlocks the cabin keypad |
| Cabin search | Hacksaw and symbol strip | Leads to the hidden safe |
Unlock the computer
Take the chip reader from the box at Kate’s desk. Place it on the desk, inspect the changed monitor, and enter 63849 on the computer.
Repair the snowblower
Collect the wheel, nozzle, and fuel from the snowy area. Combine them with the snowblower, then use the repaired machine to clear the snow.
Open the cabin
Pick up the metal numbers, arrange them on the board as 40827, and enter that code on the cabin door keypad.
Search the cabin
Move the mattress and rug, open the window, collect the cloth curtains, inspect the cabinets, and take the hacksaw and symbol strip.
Reach the outdoor puzzle
Cut the loose floorboards with the hacksaw, pull out the safe, then return outside and inspect the area near the burning car.
The cabin keypad code is 40827, while the earlier computer code is 63849. Keep them separate to avoid repeating the opening sequence.
Once inside the cabin, inspect the body carefully. Look at the tattoos and the hidden compartment on one leg. The symbol strip is important because it provides the order for the safe combination. You can also retrieve the safe by using the hacksaw on the loose floorboards.
Return outside and wet the cloth in the puddle. Bring it back inside and wipe the blood from the safe. Count the symbols shown on the strip across the body: arrow, skull, heart, and wave. Their counts form 9, 4, 1, and 6, so enter 9416 into the safe. Take the letter, triangles, and lockpin gun.
What to do after solving the ice blocks
After completing the Ice Stairway puzzle, use the fire extinguisher on the burning car. The extinguished scene can then be searched for important tools. Tap the bodies to collect a crowbar and a wrench. These items unlock the next chain of interactions and eventually provide the small key needed for the rusty outdoor box.
| Location | Item | Use |
|---|---|---|
| Burnt car area | Fire extinguisher | Puts out the fire |
| Bodies near the car | Crowbar, wrench | Opens the car and repairs the wheelchair |
| Car interior | Phone cord | Connects the phone indoors |
| Wheelchair | Small key | Opens the locked outdoor box |
| Locked box | Screwdriver, triangles | Opens the leg compartment and completes the triangle set |
Use the crowbar on the car door to obtain the phone cord. Go back inside the cabin and plug the cord into the phone. While the phone charges, use the wrench to repair the wheelchair and take the small key.
Return to the burnt car and use the small key on the locked box that was cleaned earlier. Inside, collect the screwdriver and additional triangles. Go back into the cabin and use the screwdriver on the compartment in the body’s leg. Take the dead phone and place it on the wireless charger.
After the Ice Stairway puzzle, the correct route is fire extinguisher, bodies, car door, phone cord, wheelchair, small key, locked box, screwdriver, and dead phone.
The phone unlocks through facial identification. Use it on Hacksaw’s face, then read all available text messages. The messages reveal that Hacksaw received a delivery, and the delivery is waiting in the mailbox outside the cabin.
Go to the front of the cabin and use the phone to unlock the mailbox. Take the remaining triangles and the chart. At this point, the investigation has all the materials required for the next indoor puzzle.
Triangle puzzle and evidence recovery
Place all of the triangles into the puzzle inside the cabin cabinets. This puzzle, called Triangulate, uses highlighted triangles to guide an electrical dot toward the yellow triangle on the far right. Each time the dot moves, the triangle it lands on rotates clockwise.
The safest approach is to examine the highlighted path before tapping. The objective is not simply to move from one visible triangle to another; each landing changes the orientation of that triangle. Account for the clockwise rotation before selecting the next highlighted piece.
| Item | Where to Find It | Next Use |
|---|---|---|
| First triangles | Hacksaw’s safe | Begin the cabinet puzzle |
| Additional triangles | Locked outdoor box | Complete the triangle set |
| Chart | Mailbox | Place on the evidence wall |
| Letter | Hacksaw’s safe | Place on the evidence wall |
| Photo | Triangulate puzzle | Complete the secret-safe arrangement |
Every electrical-dot movement rotates the triangle it lands on clockwise. Check the new orientation before choosing the next highlighted triangle.
After the electrical dot reaches the yellow triangle, take the photo. The final evidence arrangement uses three objects:
- Letter from the safe
- Chart from the mailbox
- Photo from the Triangulate puzzle
Place all three on the wall. Their arrangement opens a secret safe containing Hacksaw’s hard drive. Collect the hard drive to recover the evidence and complete the main investigation objective for Chapter 1.
Chapter 1 Evidence Checklist:
- Enter 63849 on the computer
- Enter 40827 at the cabin keypad
- Enter 9416 in the hidden safe
- Solve the Ice Stairway puzzle and extinguish the fire
- Place the letter, chart, and photo on the evidence wall
Ice Stairway route summary and FAQ
The full route is easier to manage when divided into indoor and outdoor objectives. The indoor sequence establishes the codes, safe combination, and evidence items. The outdoor sequence solves the Ice Stairway puzzle, extinguishes the car fire, and supplies the tools needed to access the phone and mailbox.
| Route Segment | Main Goal | Key Result |
|---|---|---|
| Police station | Inspect the chip reader | Computer code 63849 |
| Snowy cabin route | Repair the snowblower | Metal-number puzzle becomes available |
| Cabin entrance | Arrange the numbers | Door code 40827 |
| Cabin investigation | Search the body and safe | Safe code 9416, letter, triangles |
| Outdoor investigation | Solve Ice Stairway and search the scene | Tools, phone route, chart, final evidence |
| Evidence wall | Combine three investigation items | Hacksaw’s hard drive |
For a source cross-check, consult the Adventure Escape Mysteries: On Thin Ice walkthrough guide, which covers the Chapter 1 item sequence, codes, Ice Stairway objective, and evidence recovery route.
If progress stops after the stairway puzzle, inspect the burnt car area again. The fire extinguisher, bodies, car door, wheelchair, and locked box form one connected item chain.
Q: What is the On Thin Ice ice stairway puzzle solution?
Slide the numbered ice blocks into their matching slots while using the extra blocks to create movement space. Preserve an open lane instead of moving pieces randomly.
Q: What code opens the cabin in On Thin Ice?
Arrange the metal numbers on the board to form 40827, then enter 40827 on the cabin door keypad.
Q: What is the safe combination in Chapter 1?
Count the symbols from the strip across the body. The arrow, skull, heart, and wave counts produce the combination 9416.
Q: What should I do after the Ice Stairway puzzle?
Use the fire extinguisher, search the bodies for the crowbar and wrench, recover the phone cord, repair the wheelchair, open the locked box, and continue through the phone and mailbox sequence.
The key to this chapter is maintaining the item order. Solve the early codes, search the cabin thoroughly, prepare the outdoor box with cleaning oil, and return to each location when a new tool becomes available. Following that route keeps the Ice Stairway puzzle connected to the larger evidence investigation rather than treating it as an isolated challenge.