R is for Richter-Veresov
S is for Spanish
T is for Three Knights Game
V is for the Vienna
d4, nf6, c4, e6, nf3, d5, nc3, dxc4
W is for the Winawer French
W for wrong cloud
X is for Xavier Countergambit d4 c5 e4 Nf6 Nf3
Y is for the Yugoslav Attack (against the Sicilian Dragon).
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K is for Knightcloud
R is for Richter-Veresov