Might be a good idea to keep a list of current drawn exact pairs by position.

I have been deleting current draw numbers when the high and low & even and odds are used up in the number.

Today mid draw number was 719. The *19 returned exact.

In my list of current drawn back pairs you can see where the *19 was not deleted out.

If I was looking for an odd back pair I could possibly had chosen the *19 exact for replay with a swing number in the first position.

753 ***-OOO 04/04 eve
835 HLH-*** 04/07 eve
676 ***-EOE 04/09 mid
441 LLL-*** 04/09 eve
792 HHL-*** 04/11 mid
887 HHH-*** 04/12 eve
543 HLL-OEO 04/13 mid
419 deleted out from 04/13 eve. check previous post
269-***-EEO 04/14 eve
251 LHL-EOO 04/15 mid
268 ***-EEE 04/15 eve
356 LHH-OOE 04/16 mid
326 LLH-OEE 04/16 EVE
*************************

back pr str8
Bk Pair T-Drawn Last Seen Draws Since
26 *EE 1 Apr 16, 2020 0
56 *OE 1 Apr 16, 2020 1
68 *EE 1 Apr 15, 2020 2
51 *OO 1 Apr 15, 2020 3
69 *EO 1 Apr 14, 2020 4
35 *OO 1 Apr 14, 2020 5
*19 *OO 1 Apr 13, 2020 6
43 *EO 1 Apr 13, 2020 7
87 *EO 1 Apr 12, 2020 8
48 *EE 1 Apr 11, 2020 9
92 *OE 1 Apr 11, 2020 10