1...e6 (a) 2.Sxc6+ (A)                2...Kd5 (x) 3.Sxe3# (Z)                2...Kd3 (y) 3.Rc3# (Y)   1...Sd~ (b) 2.Sxc6+ (A)             2...Kd5 (x) 3.Bb3# (X)             2...Kd3 (y) 3.Rc3# (Y) 1…Sc4! (z), 1…Sxb5!   1.Bb3! (X) [2.Rc3 (Y) [3.Sc2#/Sxc6# (A)] 2...Sc4 (z) 3.Rxc4#]     1...Se2 (c) 2.Sxc6+ (A) Kd3 (y) 3.Rd1# (B)     1...cxb5 2.Rd1+ (B) Kxc5 3.Bxe3# (C)     1...exf6 2.Bxe3+ (C) Ke5 3.Sxc6# (A)     1...e2 (d) 2.Sxc6+ (A) Kd3 (y) 3.Rc3# (Y)
Cycle of   2^nd – 3^rd moves (AB-BC-CA)Mates from set play become key and threat of actual play (X/Y)Reversal, in a variant, of  2 – 3  moves of threat (Y/A - A/Y)King Y-flightTransferred continuation (aA - bA - cA - dA)Changed mates (xZ/xX - yY/yB)Black correction (set play)