X

This figure might be a key to understanding the geometrical figures described by Yukio Shishido in the Bulletin of String Figures Association No. 8 (1982), p. 4. It is not easy to understand the Four-diamonds Ending described there.

Explanation in Japanese (Machine Translation)

 * 1) Middle finger stance.
 * 2) Take the little finger thread with your index finger and remove the little finger thread.
 * 3) Use your thumb to remove the thread in front of your index finger, and use your thumb to remove the Navajo.
 * 4) Put the little finger into the ring of the middle finger and the ring of the index finger from the bottom, and take the horizontal thread above the thread running from the thumb to the index finger. (Attach your ring finger)
 * 5) Remove the thread on the middle finger. (The removed thread is applied to the thread in front of the little finger)
 * 6) Take the thread in front of the little finger in front of the ring that hangs on the thread in front of the little finger with the middle finger.
 * 7) Remove the index finger thread. (Make the X in the center a little smaller)
 * 8) Use your index finger to remove the thread in front of your thumb and remove the thread from your thumb.
 * 9) Take the thread in front of the middle finger from the bottom with your thumb, and then take the thread in front of the index finger.
 * 10) Remove the thread on the middle finger.
 * 11) Take the parent-oriented thread from above with your middle finger and remove the thumb thread.
 * 12) Take the little finger thread from below with your thumb.
 * 13) Put your thumb in the ring of the index finger from above and twist it from the bottom to the front to remove the thread in front of the index finger.
 * 14) Transfer the thumb thread to the index finger.
 * 15) Take the thread from the front of the little finger to the front of the index finger from the ring of the index finger with your thumb. (Right figure) [[File:X-1a.jpg]]
 * 16) Remove the thread on the index finger (the thread from the index finger to the thread in front of the thumb) and remove the thread on the little finger.
 * 17) Put the little finger into the ring of the middle finger from above, take the thread of the index finger, and remove the thread of the middle finger.
 * 18) Remove the index finger thread.