MetaMTSS [low] [high]

Serial Probe Recognition [low] [high]

Ascending Numerical [low] [high]

7-item Simchain [low]

Pigeon 4-item Simchain[low] [high]

Nim On Nova [low] [high]
(High quality file is 315 MB. The link opens a new window, but you really should right-click and download instead.)