See `tiling' for more!
____ ____
/ __ \ / __ \
/ / \ \ / / \ \
\ \__/ /__\_\__/ /
\__/ /_________/
____ / / ____ \ \ ____
/ __ \/ / / __ \ \ \/ __ \
/ / \ \/ / / \ \ \ \/ \ \
\ \__/\ \ \ \__/ / /\ \__/ /
\____/\ \ \____/ / /\____/
_\_\______/ /_
/ ________/ /_ \
/ / \ \ / / \ \
\ \__/ / \ \__/ /
\____/ \____/Jiri