What Is a System Bet in 4D?
A system bet (also called a permutation bet or "iBet" on some platforms) allows you to enter multiple arrangements of the same four digits in a single bet. Instead of betting on one specific sequence, a system bet automatically covers some or all of the possible arrangements of your chosen digits.
This increases the number of entries — and therefore the cost — but also widens your coverage across the possible winning number arrangements.
Why Use a System Bet?
Consider this scenario: you want to play the digits 1, 2, 3, and 4 but you're not sure of the exact sequence. The number could be drawn as 1234, 2134, 3412, or any other arrangement. A standard single bet on 1234 wins only if that exact sequence is drawn. A system bet covers multiple (or all) arrangements of those four digits.
Types of System / Permutation Bets
1. Full Permutation (24-way)
When all four digits are different, there are 24 unique arrangements possible (4 × 3 × 2 × 1 = 24). A full permutation bet places one bet unit on all 24 arrangements simultaneously. This costs 24× the standard single bet amount.
Example: Betting on 1234 with full permutation covers 1234, 1243, 1324, 1342, 1423, 1432, 2134... and all other arrangements.
2. Partial Permutation — One Pair (12-way)
When two of your four digits are the same (e.g., 1123), there are only 12 unique arrangements. The system bet covers all 12 at 12× the cost.
Example: 1123 could also appear as 1132, 1213, 1231, 1312, 1321, 2113... etc.
3. Partial Permutation — Two Pairs (6-way)
When your four digits form two pairs (e.g., 1122), there are 6 unique arrangements. This costs 6× the standard price.
Example: 1122 arrangements include 1212, 1221, 2112, 2121, 2211.
4. Partial Permutation — Three of a Kind (4-way)
When three of your four digits are the same (e.g., 1112), there are 4 unique arrangements at 4× the cost.
5. Full House / Quadruple (1-way)
When all four digits are identical (e.g., 1111), there is only one possible arrangement — essentially a standard single bet.
Cost vs. Coverage Trade-Off
| Permutation Type | Example | Number of Combos | Cost Multiplier |
|---|---|---|---|
| All different | 1234 | 24 | 24× |
| One pair | 1123 | 12 | 12× |
| Two pairs | 1122 | 6 | 6× |
| Three of a kind | 1112 | 4 | 4× |
| All same | 1111 | 1 | 1× |
How Payouts Work for System Bets
When one of your system bet arrangements wins a prize, the payout is based on the per-unit prize amount divided by the number of combinations you entered — or in some operator formats, you receive the full single-bet payout for the winning arrangement. Always check your specific operator's payout rules for system bets, as they vary.
When Does a System Bet Make Sense?
- When you believe strongly in a set of four digits but are unsure of the sequence.
- When you have a slightly larger budget and want broader coverage from a single number group.
- When playing numbers with repeating digits — fewer combinations means lower cost for permutation coverage.
When to Stick with Single Bets
- When your budget is limited — system bets multiply your cost significantly.
- When you have a very specific number in mind with a particular sequence that feels meaningful.
- When you want to spread your entries across many different number groups rather than permutations of one group.
Final Thoughts
System bets are a powerful tool in the 4D player's toolkit — they offer broader coverage but come at a higher entry cost. Understanding how permutations work helps you make conscious decisions about how to allocate your lottery budget effectively.