Here is scenario in which SSG makes the postseason with 23 additional wins (46 total).

Here are the final standings in the scenario:
            Team	W	L	D	PCT	GB
          Doosan	121	20	3	0.8582	0.0
         Samsung	113	28	3	0.8014	8.0
              LG	99	41	4	0.7071	21.5
             KIA	96	44	4	0.6857	24.5
          Kiwoom	46	94	4	0.3286	74.5	See explanation of tie-breakers below.
             SSG	46	94	4	0.3286	74.5	See explanation of tie-breakers below.
           Lotte	46	95	3	0.3262	75.0
          Hanwha	46	96	2	0.3239	75.5
              KT	45	95	4	0.3214	75.5
              NC	45	96	3	0.3191	76.0

Explanation of Tie-breakers:
Kiwoom and SSG tie for fifth place and play a post-season game; the winner goes on to the wild-card game.

To construct the scenario, we start with the current standings:
            Team	W	L	D	GL	PCT	GB
             KIA	26	16	1	101	0.619	0.0
              NC	25	17	1	101	0.595	1.0
         Samsung	24	18	1	101	0.571	2.0
          Doosan	25	20	1	98	0.556	2.5
              LG	23	20	2	99	0.535	3.5
             SSG	23	20	1	100	0.535	3.5
          Kiwoom	18	24	0	102	0.429	8.0
              KT	18	25	1	100	0.419	8.5
          Hanwha	16	26	1	101	0.381	10.0
           Lotte	14	26	1	103	0.350	11.0

The next two tables show, respectively, how many of their remaining games each team wins and ties against each of the other teams in the scenario:

					Scenario Additional Wins Against
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Wins
Doosan	-	9	10	10	10	11	12	11	10	13	96
Hanwha	0	-	0	10	0	0	10	0	0	10	30
KIA	0	11	-	12	10	0	14	13	0	10	70
Kiwoom	0	0	0	-	6	0	0	14	0	8	28
KT	0	10	0	2	-	0	1	11	0	3	27
LG	0	14	8	11	13	-	10	10	0	10	76
Lotte	0	2	0	10	10	0	-	10	0	0	32
NC	0	11	0	0	0	0	0	-	0	9	20
Samsung	0	13	10	10	14	10	11	10	-	11	89
SSG	0	0	0	5	7	0	11	0	0	-	23
-----------------------------------------------------------------------------------
Losses	0	70	28	70	70	21	69	79	10	74

					Scenario Additional Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	1	1	0	0	0	1	0	0	0	2
Hanwha	1	-	0	0	0	0	0	1	0	0	1
KIA	0	0	-	0	0	2	0	0	1	0	3
Kiwoom	0	0	0	-	3	0	0	0	1	0	4
KT	0	0	0	3	-	0	1	0	0	0	3
LG	0	0	2	0	0	-	0	0	1	1	2
Lotte	1	0	0	0	0	0	-	0	0	1	2
NC	0	0	0	0	0	0	0	-	0	2	2
Samsung	0	0	1	1	0	0	0	0	-	0	2
SSG	0	0	0	0	0	0	1	2	0	-	3
-----------------------------------------------------------------------------------
Total	2	1	3	4	3	2	2	2	2	3

The next two tables show, respectively, how many total games each team wins and ties against each of the other teams in the scenario:

					Scenario Total Wins Against
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Wins
Doosan	-	13	12	15	15	15	13	14	11	13	121
Hanwha	2	-	1	12	3	1	11	1	1	14	46
KIA	3	15	-	16	13	4	16	15	2	12	96
Kiwoom	1	4	0	-	7	4	5	14	2	9	46
KT	1	13	3	6	-	1	2	14	0	5	45
LG	1	15	10	12	15	-	15	14	3	14	99
Lotte	2	5	0	11	13	1	-	11	2	1	46
NC	2	14	1	2	2	2	5	-	3	14	45
Samsung	5	15	13	13	16	12	14	13	-	12	113
SSG	3	2	4	7	11	1	14	0	4	-	46
-----------------------------------------------------------------------------------
Losses	20	96	44	94	95	41	95	96	28	94

					Scenario Total Draws (Ties) With
Team	Doosan	Hanwha	KIA	Kiwoom	KT	LG	Lotte	NC	Samsung	SSG	Total
Doosan	-	1	1	0	0	0	1	0	0	0	3
Hanwha	1	-	0	0	0	0	0	1	0	0	2
KIA	0	0	-	0	0	2	0	0	1	0	4
Kiwoom	0	0	0	-	3	0	0	0	1	0	4
KT	0	0	0	3	-	0	1	0	0	0	4
LG	0	0	2	0	0	-	0	0	1	1	4
Lotte	1	0	0	0	0	0	-	0	0	1	3
NC	0	0	0	0	0	0	0	-	0	2	3
Samsung	0	0	1	1	0	0	0	0	-	0	3
SSG	0	0	0	0	0	0	1	2	0	-	4
-----------------------------------------------------------------------------------
Total	3	2	4	4	4	4	3	3	3	4

# SSG Landers magic number
# SSG's magic number
# Landers magic number
# KBO Playoff Race