
Many players mistakenly believe the spymaster must actively intervene or react when a teammate touches a card, but the official rules define specific, passive responsibilities.
According to the Czech Games Edition Official Rulebook, the spymaster does not 'react' with words, but must instead perform specific physical actions to reveal the card's identity.
Codenames Official Rules, Czech Games Edition, [page not specified]
These rules correspond to the UK edition of Codenames.
Official Rule Breakdown
When a field operative makes an official guess by touching a codename on the table, the spymaster's role is to reveal its secret identity. According to the rulebook, if the operative touches a card belonging to their own team, the spymaster covers the word with an agent card in that colour. If the operative touches an innocent bystander, the spymaster covers it with an innocent bystander card, which ends the turn. If the operative touches a card belonging to the opposing team, the spymas…
Step-by-Step
- Step 1: A field operative indicates an official guess by touching a codename on the table.
- Step 2: The spymaster identifies the card's secret identity using the key.
- Step 3: The spymaster covers the word with the appropriate tile (Agent, Bystander, or Opposing Agent).
- Step 4: The game proceeds based on the result (e.g., another guess allowed, turn ends, or opposing team's turn).
Example Play Situation
Alice, a field operative, touches the word 'TREE'. Bob, the spymaster, consults the key and sees it is a blue agent. Bob covers the word with a blue agent tile, and Alice is allowed to make another guess.

Common Misconceptions
- Spymasters can give verbal hints when a wrong card is touched
- Spymasters should reach for cards to help teammates decide
- The spymaster can react with facial expressions to guide guesses
Quick Reference
| You Can | You Cannot |
|---|---|
| Cover the word with the corresponding colour tile | Do not reach for any card while teammates are considering words |
| Keep a straight face during the guessing process | Do not make eye contact with field operatives while they guess |
| Reveal the secret identity only when a card is touched | Do not provide extra hints or verbal reactions |
Frequently Asked Questions
- What is the official rule for reacting when a card is touched in Codenames?
- The spymaster must cover the word with the corresponding agent or bystander tile.
- Can I, as a spymaster, tell my team if they missed a word from a previous clue?
- No, the spymaster must not tell operatives if they are missing words from a previous clue.
- Is it allowed to touch a card to signal it is the assassin?
- No, the spymaster reveals the identity by covering the card with the appropriate tile.
- What happens if a teammate touches an innocent bystander?
- The spymaster covers it with a bystander card and the turn ends immediately.






