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Systems2026-01-287 min read

Wong Halves Blackjack Trainer | Expert Counting App

Wong Halves is the hardest system to master. Protocol 21 is the only app that supports fractional values for expert drills.

Wong Halves. The name alone scares off most counters. It's theoretically perfect, but calculating fractional values (.5) on the fly is a nightmare for the human brain under pressure.

The Solution

Protocol 21 is the only app that has a dedicated preset for Wong Halves. It handles the Balanced logic automatically. Uniquely, our engine supports fractional values, allowing you to track counts like +4.5 without rounding errors.

How to Practice Wong Halves

If you are brave enough to learn this, do it right:

  • Step 1: Fraction Math. Use our 'Math Drill' to get comfortable adding and subtracting 0.5s. It sounds simple, but it's not when you're tired.
  • Step 2: Slow Drills. Do not rush. Start at 30% speed. You are building a new neural pathway for fractional arithmetic.
  • Step 3: Casino Speed. The ultimate test. Can you handle fractions at 1 card per second? The app will tell you the truth.

Master Wong Halves Today

For the perfectionist. The ultimate tool for the ultimate system.

Download Protocol 21 to master Wong Halves today

Ready to Practice?

Download Protocol 21 and start mastering card counting with our casino-grade training drills.