Enemy agents are sending coded messages using letter codes.
We need you to learn how to crack them! Your training starts now!
🔐 Your mission: learn to encode and decode secret messages
📡 This is a key topic in the 11+ Verbal Reasoning exam!
>> AGENT STATUS: READY
>> MISSION: CRACK THE CODES
>> CLEARANCE: TOP SECRET ⭐
"Let's begin your code-cracking training, Agent!" 🚀
🔢 The Alphabet Number Line
🕵️
"The simplest code gives each letter a number. A=1, B=2, C=3 ... all the way to Z=26!
Memorise this and you'll crack codes in no time!"
Let's encode the word CAT! 🐱
C
→
3
,
A
→
1
,
T
→
20
CAT = 3, 1, 20
And DOG! 🐕
D
→
4
,
O
→
15
,
G
→
7
DOG = 4, 15, 7
"Simple! Each letter has its own number. Learn the alphabet positions and you'll be unstoppable!" 💪
🔄 Letter Shifting Codes
🕵️
"A more advanced code shifts each letter forward (or backward) in the alphabet.
If we shift by +2, every letter moves 2 places forward: A→C, B→D, C→E..."
Shift +2: Encode "DOG" 🐕
D
+2 →
F
|
O
+2 →
Q
|
G
+2 →
I
DOG with shift +2 = FQI
Shift +1: Encode "HAT" 🎩
H
+1 →
I
|
A
+1 →
B
|
T
+1 →
U
HAT with shift +1 = IBU
"Think of the alphabet as a circle! Each letter shuffles along. To decode, just shift backwards the same amount!" 🔄
🎮 Decode the Messages!
🕵️
"We've intercepted coded messages! Use the alphabet number line to decode them. You can do this, Agent!" 📡
Score: 0 / 3 📡
📝 11+ Exam Pattern Codes
🕵️
"In the real 11+ exam, you'll see questions like: 'If COME is coded as DPNF, how is GONE coded?'
Let's learn the comparison method to crack these!" 🧠
The Comparison Method 🔍
Step 1: Compare each letter with its code
Original
C
O
M
E
Coded
D
P
N
F
Shift
+1
+1
+1
+1
Every letter has shifted forward by +1! C→D, O→P, M→N, E→F
Step 2: Apply the same rule to the new word
Original
G
O
N
E
+1
H
P
O
F
So GONE coded with +1 = HPOF! ✅
"Always check every letter to make sure the pattern is the same. Sometimes the shift might be different for each letter — but usually it's the same!" 🎯
⚡ Quick Tip for the Exam
Write the alphabet out at the top of your exam paper. Then you can quickly count forwards or backwards to find shifted letters!
🏆 Top Secret Final Mission! 🏆
🕵️
"This is your final mission, Agent! Five code-cracking puzzles, just like the real 11+ exam. Use the comparison method!" 🔐
Score: 0 / 5 🏆
🎉 Mission Accomplished, Agent! 🎉
🏆
"Outstanding work, Agent! You've passed all your code-cracking training! Spy HQ awards you top honours!" 🕵️⭐
🏅 Your Spy Badges:
🔢 Number Code Expert
🔄 Shift Code Specialist
🕵️ Pattern Decoder
🌟 Master Spy — Perfect Score!
📝 What You Learned:
The alphabet number line: A=1, B=2 ... Z=26
How letter shifting works (e.g., +1, +2)
The comparison method for 11+ exam questions
How to find the pattern by comparing original and coded letters
How to apply the pattern to encode new words
🌟 ⭐ 🎊 ✨ 🎉
>> AGENT STATUS: CERTIFIED SPY 🕵️
>> CODE-CRACKING LEVEL: EXPERT ⭐
>> NEXT MISSION: ACE THE 11+ EXAM! 🚀