Brain Out 2 Level 81
📝 Walkthrough
Overview
Level 81 orders you to "Move all the bones to the place indicated by the arrow before you can get off work!" A dog in overalls pushes an empty cart along a floor: a door sits on the left, a down-arrow sign marks the target spot in the middle, and a huge labelled pile of bones ("size 10000") sits on the far right. Two on-screen left/right buttons steer the dog. The normal way — the dog carrying one bone per trip — would repeat ten thousand times, so the puzzle rewards a shortcut rather than honest labor.
- Difficulty: Regular
- Estimated moves: 2
Step-by-Step Solution
- Read the layout. Note the three landmarks: the exit door on the far left, the down-arrow sign showing exactly where the bones must end up, and the giant bone stack on the right that says "size 10000".
- Try the obvious method once to learn its cost. Press the right arrow to roll the dog and cart over to the bone pile; he loads one bone, then press left to deliver it under the arrow. Watch the counter drop from "size 10000" to "size 9999". This confirms one trip moves only a single bone — clearly not the intended way to finish.
- Stop pushing the dog. Ferrying all ten thousand bones trip by trip is impossible by hand. The cart and arrow buttons are a decoy that makes you expect slow, repeated work.
- Drag the entire bone pile with your finger. Grab the whole stack of bones on the right and pull it directly onto the floor spot beneath the down-arrow sign. The stack moves as one object, so all remaining bones are placed instantly.
- Wait for the door to open. Once the pile sits under the arrow, the door opens, the dog walks through on his own, and the screen says "Get off work!" The level is cleared.
Strategy & Reasoning
This is a scale-trick puzzle. The game establishes a perfectly functional rule — the dog carries one bone per cart trip — and then sets the quantity to an absurd 10000 so that following the rule literally is impractical. Brain Out repeatedly asks you to step outside the provided mechanism: if the cart can only hold one bone, but the pile itself is a single movable graphic, then the pile, not the dog, is what you should be moving.
The down-arrow sign is the anchor. It tells you the destination is a fixed point on the floor, and it does not say anything about how the bones must arrive. Delivering one bone per trip satisfies the requirement but wastes time; dragging the whole stack to the same spot satisfies it in one gesture. The game's victory condition is simply "pile is under the arrow," not "dog carried each bone personally."
The reason the video shows the counter already down to 9999 before the real solution is that the solver tests the cart method, sees how slow it is, and then pivots to dragging the whole stack. That failed first attempt is part of discovering the answer.
Tips & Common Mistakes
- Mistake: repeatedly pressing the arrow buttons. Each trip moves exactly one bone. With 10000 of them you will never finish this way. Press them once just to understand the mechanic, then switch to dragging.
- Mistake: dragging only a single bone. Pulling one loose bone at a time from the stack is just as slow as using the cart. Grab the whole pile as one object.
- Mistake: dropping the pile anywhere. The bones must land precisely on the floor spot marked by the down-arrow sign, not next to the door or on the old spot. Line the stack up under the arrow for the door to trigger.
Key Frames
