Delaying c3 on the third move in the sicilian opening gave me some opportunities to surprise my opponents .
The main lines were :1 e4 c5 2 Kf3 d6 3 c3  Kf6 4 Bc4 Kc6 5 Qe2 (Who wants his queen on e2 in the sicilian? ) g6
1 e4 c5 2 Kf3 d6 3 c3 Kf6 4 Bb5 Bd7 (rarely Kbd7 and Kc6 )5 Bd7 Qd7 6 Qe2 Kc6
1 e4 c5 2 Kf3 d6 3 c3 g6
1 e4 c5 2 Kf3 Kc6 3 c3 Kf6 4 e5 Kd5
1 e4 c5 2 Kf3 e6 3 c3 d5 4 e5 d4 (or Kc6 deviating in the French Defense)
Do you have any good or bad experience to share about one of these ?
Do you know if there is any publication on this topic ?
Thanks