100 Doors of Revenge Level 49 Walkthrough
3 x 3 square line on door with 4 crate box making T shape
a red print button on left wall
a text and shape above door :
slide & print :
L
T (with gap on the joint)
L (facing left)

hint : slide the crates to make a shape like the help above door
level 49 solution :
using 1 = crate and 0 = empty space
move the crate like these to make each shape :
L shape :
1 0 0
1 0 0
1 1 0
press print
T shape (with gap on the joint) :
1 0 1
0 1 0
0 1 0
press print
L shape (facing left) :
0 0 1
0 0 1
0 1 1
press print
tap green arrow and move to level 50