- block_assembly
- classify_blocks
- clock_running
- color_mix
- euler_path
- expand_3d_to_2d
- gears
- hanoi_tower
- jigsaw_puzzle
- leave_parking_lot
- light_reflection
- maze_round
- maze_square
- object_packing
- pick_unique
- polyform_tiling
- recover_2d_net
- remove_obstacle
- rolling_dice
- rope_untangle
- section_3d_figure
- sliding_puzzle
- sorting
- tool_use_common
- tool_use_uncommon
- unhook_ring
- untie_knot