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# buy\_buy\_buy

## Description

I got a lot of items to sell so buy buy buy.

Challenge Author: Pranav Goel

## Solution

There was an "auction bot" on Discord.

![](/files/KuvhwXKaDp804xLMGpLz)

It sold different types of items (single, collectable, part and set). The value of a `single` item is static, a `collectable` item increases in value by an arbitrary multiplier when sold, and `parts` can be combined to form a `set` which is worth more than the sum of its parts!

To view the items being sold, we can use `/marketplace`. The goal is to get enough money to buy all three flags (Flag Common, Flag Rare and Flag Ultra Rare).

![](/files/-MgF5k1OL_ybhnvstMI9)

We start off with $10,000. While there are many paths to winning, my strategy ended up being repeatedly buying and selling the Shiny Pokemon Card item.

The first Shiny Pokemon Card was bought for $10,000, but when sold, it made an overall profit of $5000.

![](/files/h5HJzYUp9V9GbsOtrdTa)

![](/files/Kci0cYNfuTqibuNdAciF)

As our balance increases, we could buy and sell more items at a time, increasing the rate at which we earn more profit.

![](/files/E9wBWUHrvLcNTceESFiX)

Repeat this enough times, and we get enough money for all three flags.

![](/files/qYLvehSvqgJcK2dvG4US)

Use `/redeem_flags`, and the bot DMs us the flag!

![](/files/14ZwCXSmspkSZLzwQCom)