Explaining the rules of a board game to a player might just be the worst aspect of this awesome hobby—especially when that player doesn't play board games often.
At best, you can expect an awkward few minutes as you stumble through instructions and hope something solid lands well enough that they can make it through their first game. At worst, they don't get it at all and have a terrible experience.
Nothing ruins a board game faster than poorly explained rules.
As the board game enthusiast in my social circle, I'm usually the one researching new board games to play, learning their rules, and teaching them to my friends whenever we get together.
I used to fumble a lot, but with practice I've refined the process. I use a five-step procedure that's pretty straightforward, and even though it may not be perfect, it seems to work!
Here's what I've found to be the best way to explain board game rules to new players so that they catch on quickly.
Always use the board game pieces as you explain because it reinforces what you're saying. Every little bit helps, especially for players who are visual or hands-on learners.
Step 1: What Is the Main Objective?
The first thing any new player needs to know about a board game is... what are they trying to accomplish as a player?
Knowing the main objective provides the underlying context behind all of the game's rules and mechanics. The main objective tells them why they're playing; the game rules tell them how to go about accomplishing the main objective.
Nothing will make sense until they know what they're trying to do. Always lead with the main objective.
Example
The main objective of Onitama is "to capture the opponent's Master or move your Master onto the opponent's Shrine."
You might have questions as to what a "Master" is, or what a "Shrine" is, or how you're supposed to move your Master...
...but at least you now understand the main objective! And because you know what the end goal is, now it makes sense to explain those other details.
Step 2: What Are All the Game Pieces?
Before diving into game mechanics, I find it helpful to first set up the entire game and lay out all the game pieces. This gives the player a broad overview of what the gameplay will look like.
If there's a game board, explain in broad strokes what the different parts of the board represent. If there are meeples or card decks, explain in broad strokes what they represent.
Don't get into the nitty-gritty instructions yet. You just want to make sure the player understands the bigger picture, which will help when you're explaining the smaller details.
Example
The Onitama game board is a 5x5 grid, and players start with 1 Master piece and 4 Student pieces on opposite sides. Each player's Shrine is designated on the board itself, and each player's Master starts the game on their Shrine.
The only other components to know about in Onitama are the movement cards, of which there are 16 and each one is unique. However, in each game, only 5 of the 16 movement cards are used (picked randomly).
The game starts with both players possessing 2 of the 5 movement cards, with 1 shared neutral movement card.
Step 3: What Are the Player Actions?
Once they know what they're trying to do and what all the different pieces look like, they're ready to learn what they can do as a player to accomplish the main objective.
This is the time to explain what each player does on their turn: what actions are available to them, the costs and consequences of each action, what they want to avoid, etc.
Start with ALL the core actions, then cover exceptions and special rules afterward. Avoid the temptation to hop around ("...unless you do this...") because that's only going to cause confusion.
Example
In Onitama, players only have one action per turn: move one of their pieces by playing one of their 2 movement cards. All movement cards stay face-up and visible at all times.
Each movement card shows how it moves a piece; the player chooses which piece to move with that card. Then, the movement card is swapped with the shared neutral movement card.
Over the course of the game, both players will constantly be exchanging all 5 movement cards, but each player only possesses 2 of the movement cards at any time.
Step 4: What Are the Edge Cases?
Once players understand the main objective and the general idea of how the game is played, that's when you start introducing the special rules and exceptions—if you need to introduce them at all.
Sometimes it's best to stop at the fundamentals; the special rules and exceptions can be explained when they happen in the game.
Doing it this way lets the player focus on the important stuff and not get mentally bogged down by too much information.
Example
Onitama doesn't have any special rules other than the fact you can't move outside the game board (obvious), and if you can't make a legal move with any piece, you still have to swap out one of your movement cards (not as obvious).
In The Resistance, one of the special rules would be: "If the mission team proposal is vetoed five times in a row, that mission counts as a win for the Spies."
Step 5: Can We Just Play a Round?
By this point, you've explained the game in disjointed bits and pieces—and even if you've done a perfect job, nobody can truly grasp how a board game is played without actually playing it.
So once the basics are explained, it's best to jump into the game and start playing. It's the only way everything will come together and click in the new player's mind.
This "test round" is the best time to field questions. Once the test round is done, everyone should be at least somewhat comfortable with playing the game for real. Your job is now done.
Good luck and have fun!