Hitachi Number 830
Minoru Harada's No. 830 (2012 March 19) elementary problem.
This problem contains a small mistake: One white stone is missing in the original diagram, but present in the solution diagram.
Minoru Harada's No. 830 (2012 March 19) elementary problem.
This problem contains a small mistake: One white stone is missing in the original diagram, but present in the solution diagram.