Exit RiddlesFree, no sign-up
Puzzles to practise on
Each one takes a few minutes and comes from the same bank we build our rooms with. Just open it: nothing to install, no email to leave.
AST — Astronomy, geography and cartography
BIO — Biology, nature and forensics
BUS — Searching and observation
CER — Locks and mechanisms
CIF — Ciphers and cryptography
COD — Codes and systems of representation
COL — Collaboration and asymmetry
DIG — Computing, networks and the digital world
ELE — Electricity and electronics
EMO — Emotional challenge and choice
ESP — Spatial and hands-on
- ESP-06The strip of stampsThe order of the pile is the combination
- ESP-07Light Table — File 74-118Align on a continuum
- ESP-08Santa Águeda Baths — Boiler RoomConnect a network and watch it flow
- ESP-10The part on drawing 12Check a solid against its projections
- ESP-14The bowlineA sequence of moves with physical feedback
- ESP-16The Print Shop's WastebasketRebuild by matching edges