Just for fun
Goal conquest
Criss-cross
The key
Triple lock
Candy sugar
Fallback
Ali Baba's cave
Fake doors
Eye of the storm
Home, sweet home
Concentration
Castle, sweet castle
Private yard
Wandering
Ordered chaos
X-file
Backdoor
Bubbles in a bottle
The octopus' hole
Cheops
Pythagoras' hobby
Pythagoras' quest
Another brick in the wall
The spine
The blockade
Back to tradition
Narrow passage
Ant-hill
Zen garden
Kare-san-sui
The Teotihuacan equation
Optimizer's challenge
Options Palace's contest
Vertical warehouse
Run, chicken!
Discharge
Scrabbleban
Crazy temple
Senate and Parliament
Tough rider
The galley
On-site parking
Excalibur
Random warrior
What a mess!
Storeman's work
Storeman's tricky work
Kheops' tomb
Mental connection