After Guess Who?: The Chess, Ludo, Solitaire and Card Classics on This Site
What is on the shelf next to Guess Who? — the board games with a computer opponent, the solitaire family, and the logic puzzles for a quiet ten minutes.
Guess Who Blog
Question strategy, two-player house rules, and what to play when the round is over.
Playing Guess Who? With a Friend at One Screen: House Rules That Keep It Fair
The pass-and-play mode works, but a couple of table rules stop the argument about who saw what.
Guess Who? Strategy: Which Question to Ask First and Why Rare Traits Are a Trap
The maths behind a good Guess Who? question, why 'does your person have a hat' is usually wrong on turn one, and how to count your way to a guaranteed guess.