Gokyo Shumyo, Section 2, Problem 51
Hoshikawa Manabu in his personal blog says Gokyo Seimyo Volume 3 Problem 84 is probably the self-corrected version by the author.
Hoshikawa Manabu in his personal blog says Gokyo Seimyo Volume 3 Problem 84 is probably the self-corrected version by the author.