ok !!!

ok !!!

ok !!

ok !!

Endless stairs? Classic optical illusion.

Endless stairs? Classic optical illusion.

Another fill-in. The green should have been the background color to add at least some challenge. If background touches only the borders or only the middle, there is usually no challenge.

Another fill-in. The green should have been the background color to add at least some challenge. If background touches only the borders or only the middle, there is usually no challenge.

De los distintos paradox es el que más me ha gustado.

De los distintos paradox es el que más me ha gustado.

Protect the parazox!

Protect the parazox!

Outra brincadeira topológica.

Outra brincadeira topológica.

A triangle Escher wall - interesting

A triangle Escher wall - interesting

Ah, that's a classic. (I made a similar Triddler myself, but without the walls going down.)

Ah, that's a classic. (I made a similar Triddler myself, but without the walls going down.)

fun

fun