Some other rules for the 2-4-6 game, so you can keep going if they get the first one:
The set has an even number in it
All three are 1-digit numbers
All three must be numbers
Whatever the numbers are, you alternate between replying ‘yes’ and ‘no’ (helps to be writing them down in this case)
Try to have more than one hypothesis under consideration at every time, and choose guesses which distinguish them.
Some other rules for the 2-4-6 game, so you can keep going if they get the first one:
The set has an even number in it
All three are 1-digit numbers
All three must be numbers
Whatever the numbers are, you alternate between replying ‘yes’ and ‘no’ (helps to be writing them down in this case)
Try to have more than one hypothesis under consideration at every time, and choose guesses which distinguish them.