Focus & Attention
Proof of Post
Compare each print with the master proof. Ink and orientation may vary, but its three engraved details must match.
Inspect miniature engravings of packet boats, night trains and faraway observatories. Find an altered plate and name the cut that gives it away, or rescue the one faithful print from a mixed drawer.
Two ways to play
- Find the misprint
Select the only altered print, then mark which of its three details changed.
- Recover the original
Only one print matches all three details on the master proof. Select it and certify the match.
Your session
Each session has 12 rounds. Choose from three difficulty settings and try a guided practice round before you begin.
Play in English or Simplified Chinese with original background music.