Stalemate yourself

Hue change

Climbing cubes

Covering holes

Grouping

Moving target

Then another

Triple match

lights down

Positional

to nothing and back

White pillars

Chasm

Guiding blocks

wall virus

Monster mess

The laser

Some pits

Wall movement

Directional

Extra push

Cubes medusa

The switch

Square colours

Swap

Rows and columns

Sticky

Pull and push

bomb n ice

Shifting

dup-block

Using pushers

Compressed

The walls you leave behind

The big dig

Purple