Complete 5 levels in [B]
Complete 10 levels in [#]
Complete 5 levels in [V]
Perfect 10 levels in [+][#]8x8
Perfect 10 levels in [G]8x8
Complete 5 levels in [X]
Unlock 6x6 gallery
Unlock 7x7 gallery
Complete 5 levels in [H]
Perfect 10 levels in [D]8x8
Perfect 10 levels in [V]8x8
Perfect 10 levels in [E]8x8
Complete 5 levels in [M]
Complete 5 levels in [S]
Complete 5 levels in [D]
Complete 5 levels in [G]
Complete 5 levels in [C]
Unlock 8x8 gallery
Perfect 10 levels in [X]8x8
Complete 5 levels in [P]
Complete 5 levels in [X']
Complete 5 levels in [Z]
Perfect 10 levels in [&]8x8
Perfect 10 levels in [G][R]8x8
Perfect 10 levels in [#]8x8
Complete 10 levels in [+]
Complete 10 levels in [&]
Complete 5 levels in [E^]
Perfect 10 levels in [&][+]8x8
Find an overcomplicated irrational number
Perfect 10 levels in [H]8x8
Perfect 10 levels in [A]8x8
Win a [I] or [I][+] puzzle whose secondary board is not uniquely solvable (not via ultimate mode)
Complete 5 levels in [A]
Perfect 10 levels in [F]8x8
Perfect 10 levels in [B]8x8
Perfect 10 levels in [X']8x8
Complete 5 levels in [G][R]
Find a board with no starting clues
Complete 5 levels in [E']
Perfect 10 levels in [G']8x8
Complete 5 levels in [L']
Perfect 10 levels in [L]8x8
Perfect 10 levels in [I]8x8
Perfect the 6x6 gallery (excluding bonus variants)
Complete 5 levels in [E]
Complete 5 levels in [I]
Perfect 10 levels in [M]8x8
Perfect 10 levels in [+]8x8
Unlock 5x5 gallery
Perfect 10 levels in [Z]8x8
Perfect the 8x8 gallery (excluding bonus variants)
Complete 5 levels in [F]
Perfect the 5x5 gallery (excluding bonus variants)
Complete 5 levels in [T]
Complete 5 levels in [G']
Perfect the 7x7 gallery (excluding bonus variants)
Perfect 10 levels in [E']8x8
Perfect 10 levels in [C]8x8
Perfect 10 levels in [+][#]8x8!
Perfect 10 levels in [E^]8x8
Complete 5 levels in [L]
Complete 10 levels in [&][+]
Perfect 10 levels in [L']8x8
Perfect 10 levels in [S]8x8
Perfect 10 levels in [T]8x8
Perfect 10 levels in [P]8x8
Win a puzzle whose secondary board is not uniquely solvable (not via ultimate mode)