
Darning Stitch:
Working left to right, bring the needle up at A, move over 4 threads and bring the needle down at B. Move over 2 threads, bring the needle up at C. Move over 4 threads and bring the needle down at D. Move over 2 threads and bring the needle up at E. Now, we change direction... Working right to left, move right - over 2 threads and bring the needle down at D. Move over 4 threads, bring the needle up at C. Move over 2 threads and bring the needle down at B. Basically, we work the longer stitches from left to right and then return from right to left and work the shorter stitches.
To start the next row, begin where we left off at B. From B move down 1 thread and over (to the left) 4 threads. Bring the needle up at F. Move to the right over 4 threads and bring the needle down at G. Move over 2 threads, bring the needle up at H. Move over 4 threads and bring the needle down at I. Move over 2 threads, bring the needle up at J. Move to the left over 2 threads and bring the needle down at I. Move to the left over 4 threads, bring the needle up at H. Move over 2 threads and bring the needle down at G. Continue in this manner for any additional rows...