Starting a Custom Game

Learn~Analysis~Set Up Position
from this point, you can either play out both sides of the custom position manually, or you can press practice (the target with an arrow in it). If you press practice, you will be able to play out the match against a bot. This bot will have an Elo of your choosing.

Go to >learn >analysis >create position
Yeah but i can only do that alone...how do i create to play a game with a friend?
I want to play without a queen from the start vs a friend who has all pieces

To make a custom game on Chess.com, you'll need to navigate to the "Play" section and select "Play Online". Then, choose "Custom Game" and generate an invite link to share with your opponent. You can also set up a custom position using the analysis board and then create a custom game based on that position.
Here's a more detailed breakdown:
1. Accessing the Custom Game Feature:
Log in: Ensure you are logged into your Chess.com account.
Navigate to Play: Hover over "Play" and click on "Play Online".
Select Custom Game: On the right side of the screen, click on "Custom Game".
2. Creating a Custom Game:
Choose Opponent: You can invite a specific friend or choose a random opponent.
Select Time Control: Choose your desired time control for the game.
Set Up Position:
Standard: Choose this for a regular chess game.
Custom Position/Odds: If you want to start from a specific position, select this option.
Generate Invite Link: Once you've configured the game settings, click the "Generate Invite Link" button (usually in the bottom right corner).
Share the Link: Copy the generated link and share it with your opponent.
3. Custom Positions via Analysis Board:
Access Analysis Board: Go to "Learn" and then "Analysis".
Set Up Position: Click on "Set Up Position" to arrange pieces on the board as desired.
Generate FEN: Copy the Forsyth–Edwards Notation (FEN) of the position.
Create Daily Game: Create a new daily game and paste the FEN into the custom position field.
Note: Make sure the time control is set to 1 day or more for the custom FEN to appear.
4. Playing Against the Computer from a Custom Position:
Set Up Position: Use the analysis board to create your desired position.
Practice vs Computer: Click the "Practice vs Computer" icon to play against the engine.
Adjust Engine Strength: You can adjust the engine's strength in the settings.
Pawn b3 is mate