5 ms·
If you like these types of puzzles, the biggest online collection I've found is at: http://www.ocf.berkeley.edu/~wwu/riddles/hard.shtml http://www.ocf.berkeley
by vsl2 15y ago
If you like these types of puzzles, the biggest online collection I've found is at:
http://www.ocf.berkeley.edu/~wwu/riddles/hard.shtml http://www.ocf.berkeley.edu/~wwu/riddles/hard.shtml