It's possible to have a 14 round schedule with two byes per round where all 84 pairings are different.
T1 T2 T3 T4 T5 T6 Bye
R1 (A B) (C E) (H K) (J N) (D I) (F L) (G M)
R2 (B C) (D F) (I L) (K A) (E J) (G M) (H N)
R3 (C D) (E G) (J M) (L B) (F K) (H N) (I A)
R4 (D E) (F H) (K N) (M C) (G L) (I A) (J B)
R5 (E F) (G I) (L A) (N D) (H M) (J B) (K C)
R6 (F G) (H J) (M B) (A E) (I N) (K C) (L D)
R7 (G H) (I K) (N C) (B F) (J A) (L D) (M E)
R8 (H I) (J L) (A D) (C G) (K B) (M E) (N F)
R9 (I J) (K M) (B E) (D H) (L C) (N F) (A G)
R10 (J K) (L N) (C F) (E I) (M D) (A G) (B H)
R11 (K L) (M A) (D G) (F J) (N E) (B H) (C I)
R12 (L M) (N B) (E H) (G K) (A F) (C I) (D J)
R13 (M N) (A C) (F I) (H L) (B G) (D J) (E K)
R14 (N A) (B D) (G J) (I M) (C H) (E K) (F L)
Notice that the teams play exactly twice at each of the 6 time slots and have exactly two byes each. Finally note that the two teams who have a bye, play each other in the next round, meaning they are not able to watch their opponents for the next round to assess current form. I suggest you use the schedule above as the basis of your tournament and then add another two rounds. There are 7 matches that are not played above and I have listed them below, what you do for the remaining 5 slots is really up to you.
R15 (A H) (B I) (C J) (D K) (E L) (F M) (G N)
R16 (G N)
Hope that helps,
Ian.
