Learn how to use the easiest card counting method in blackjack. Track just two cards, boost your control, and enjoy smarter play without complex math.
Let’s be honest: most people hear “card counting” and immediately think of math geniuses or scenes from a Hollywood movie. But what if I told you that there’s a method so easy, you could start using it tonight — even if you’ve never counted cards before?
Welcome to the Ace/Five Count System, also called the A-5 system. It's simple, effective for casual play, and perfect for players who want a little edge without a math degree.
What’s the Goal?
The goal of any card counting system is to track the cards that have been played — so you can tell when the deck is in your favor. The Ace/Five system does this by focusing on just two types of cards: Aces and Fives. That’s it.
Why those two?
- Fives are bad for the player. Removing them helps you.
- Aces are great for the player. More of them left = better blackjack chances.
By keeping track of these two, you can get a sense of when to raise your bets and when to play it safe.
A Bit of Background
This strategy first became popular in the late 1990s and early 2000s, especially among casual gamblers looking for a lightweight way to count. It’s been tested in simulations and live games, and while it’s not as strong as pro systems like Hi-Lo, it’s much easier to use — especially when you’re trying to stay under the radar.
That makes it great for live casino settings, where fast play and discretion matter.
The Core Concept
The A-5 system assigns just two values:
- +1 for every Five you see
- –1 for every Ace you see
You start at zero and adjust your count as cards are dealt.
Step-by-Step Instructions
Let’s walk through how to use it at the table:
- Start with a count of zero Sit down, buy in, and wait for the first hand to be dealt. Your count always starts at 0.
- Add +1 for every 5 you see Every time a 5 comes out — whether in your hand, the dealer’s hand, or another player’s — add 1 to your count.
- Subtract –1 for every Ace you see Whenever you spot an Ace, subtract 1 from the count.
- Keep a running total You don’t need to memorize cards or calculate percentages. Just add and subtract as the round goes on.
- Adjust your bet based on the count
- If your count is +2 or higher, the deck is getting hot. Increase your bet.
- If your count is 0 or lower, stick to the table minimum.
Example in Play
Let’s say you’re five hands into a shoe. Here’s what you’ve seen so far:
- Hand 1: One 5, one Ace → count = 0
- Hand 2: Two 5s → count = +2
- Hand 3: One Ace → count = +1
- Hand 4: No Aces or Fives → count = +1
- Hand 5: One 5 → count = +2
Your running count is +2. That’s your green light to raise the bet slightly — maybe double your base unit or raise it by 50%, depending on your comfort level.
How Effective Is It?
Let’s be real: the Ace/Five system won’t make you a millionaire. It’s not as powerful as multi-level systems or full-deck tracking. But it does give you a small edge, especially if you:
- Stick to basic strategy
- Use proper bankroll management
- Play in games with good rules (like 3:2 payouts for blackjack)
Simulation studies suggest this method gives you around a 0.2%–0.5% edge when used correctly. That might not sound like much, but over time, and with smart play, it’s better than flying blind.
Pros and Cons
Pros:
- Extremely easy to learn
- Only tracks two types of cards
- Doesn’t require true count conversions
- Works well in fast-paced games
- Low risk of being noticed by the casino
Cons:
- Lower edge than professional systems
- Doesn’t perform well in continuous shuffler tables
- Less effective in short shoes or small decks
- Doesn’t help you vary playing strategy, only bet size
Pro Tips to Maximize Success
- Stick to one-deck or six-deck shoes. Avoid 8-deck games if possible — the more decks, the harder it is to spot impact from Aces and Fives.
- Combine with basic strategy. This system doesn't replace your playing decisions — it complements them. Use basic strategy charts for hit/stand/double/split decisions.
- Stay unnoticed. One of the strengths of the A-5 system is how subtle it is. Don’t draw attention by dramatically changing bets. Make small increases over time.
- Avoid side bets. Side bets like “Perfect Pairs” or “21+3” have high house edges and don’t interact with this system. Skip them unless you're playing for fun.
- Use it for fun, not pressure. This is a great system for casual players who want to feel more in control. Treat it as a helpful tool, not a guarantee.
Who Should Use the A-5 System?
- New blackjack players. looking for a simple upgrade from basic strategy
- Recreational gamblers. who want a low-effort way to think strategically
- Live casino players. who can track cards as they’re dealt
- Anyone who feels overwhelmed by Hi-Lo or Omega II counting
If that’s you — this method could be a great place to start.
When Not to Use It
- If you're playing a continuous shuffle machine (CSM) — where cards are recycled right after each hand. This makes any count worthless.
- If you plan to count for serious money or long-term advantage — you'll need a more advanced system eventually.
Still, as a first step into card counting, the Ace/Five system is perfect. It teaches core skills like observation, discipline, and timing — all while keeping things stress-free.
Let’s recap
The Ace/Five Count System is your entry-level key to smarter blackjack. You count just two cards. You raise your bet when the deck is rich in Aces and low on Fives. You play your hands using solid basic strategy.
It’s simple. It’s smart. And it adds just enough edge to make the game more interesting — without overwhelming you.
So the next time you sit down at a live casino table or open an online game with a real dealer, try this method. You’ll notice how much more focused you feel — and how much more fun it is to play with a plan.
Happy counting — and good luck at the tables!
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