The Reversed Labouchere is a cross-out system that begins with a list containing an arbitrary sequence of numbers such as 1,2,3,4. It is essentially a Labouchere system in reverse
The next bet is determined by adding the first and last numbers in the list. When the bet wins, the win amount is added to the end of the list. When the bet losses, the first and last numbers are crossed out (zeroed out for the System's purpose).
The system was made famous in the book Thirteen Against the Bank: The True Story of How a Roulette Team Broke the Bank with an Unbeatable System.
Thirteen Against the Bank is a wry and detailed account of a true event that all expert opinion deemed impossible: beating the bank at roulette. It reveals how Leigh assembled and bankrolled his crew of thirteen, instilling in them the discipline and stamina to bring off this coup and then apply it using a system known as the Reverse Labouchere betting
Let's work through an example. In the default system, the progression is just 1,2,3,4
| Bet Line | Units Staked | Result | Gain/ Loss |
|---|---|---|---|
| 1-2-3-4 | 5 | lose | -5 |
| 2-3 | 5 | lose | -10 |
| 1-2-3-4 | 5 | win | -5 |
| 1-2-3-4-5 | 6 | loss | -11 |
| 2-3-4 | 6 | loss | -17 |
| 3 | 3 | win | -14 |
| 3-3 | 6 | win | -8 |
| 3-3-6 | 9 | win | +1 |
| 3-3-6-9 | 12 | win | +13 |
| 3-3-6-9-12 | 15 | win | +28 |
| 3-3-6-9-12-15 | 18 | win | +46 |
So with the progression 1,2,3,4 the first bet is 5. In this example, it lost.
The bet line becomes 2,3 and so the next bet is 5 again.
As that lost the progression goes back to 1,2,3,4, the next bet is 5.
That won so the progression becomes 1,2,3,4,5 and the next bet is 6
And so on.
You can see more in the video below
The system loses slowly with the odd winning streak.
It's just the exact opposite of the Labouchere system, hence the name Reverse Labouchere! I can see why Norman Leigh used it. Slow losses followed by big wins.
system "Reversed_Labouchere_System"
{The Reversed Labouchere is a cross-out system which begins with a list containing an
arbitrary sequence of numbers such as 1,2,3,4.
It is essentially a Labouchere system in reverse
The next bet is determined by adding the first and last numbers in the list.
When the bet wins, the win amount is added to the end of the list.
When the bet losses, the first and last numbers are crossed-out
(zeroed out for the System's purpose)
User selects which Even Money layout to use at the Start of a New Session
}
method "main"
begin
While Starting a New Session
begin
Clear record "Progression list" data;
Clear record "Pointer" data;
Clear record "Net Bet to place" data;
Call "Setup Layout";
Call "Maximum Bet Allowed";
call "Reset";
call "Figure next bet";
call "Make Bet";
exit;
end
While record "Current Layout to Bet" layout has lost each time
begin
Put 1 on record "Progression list" Data index;
Put 0 on record "Progression list" data;
put 100% of record "Pointer" data to
record "Progression list" data index;
Put 0 on record "Progression list" data;
end
While record "Current Layout to Bet" layout has won each time
begin
Add 1 on record "Pointer" data;
put 100% of record "Pointer" data to
record "Progression list" data index;
Put 100 % of the last record "Current Layout to Bet" layout on
record "Progression list" data;
end
Put 1 on record "Progression list" Data index;
If record "Progression list" data = 0
begin
Move List Up by 1 to Record "Progression list" Data;
Subtract 2 from Record "Pointer" Data;
Put 1 on record "Progression list" Data index;
end
If record "Progression list" data = 0
begin
//Progression has won. Start Over
call "Reset";
end
call "Figure next bet";
while record "Net Bet to place" data > record "Maximum Bet" data
begin
Display "Maximum Bet has been Reached. Progression will start over.";
call "Reset";
call "Figure next bet";
end
call "Make Bet";
end
method "Reset"
begin
Set List [1,2,3,4] on record "Progression list" data;
Put 4 on record "Pointer" data;
Put 1 on record "Progression list" Data index;
end
method "Figure next bet"
begin
Put 1 on record "Progression list" Data index;
Put 100 % of record "Progression list" data on record "Net Bet to place" Data;
While Record "Pointer" data > 1
begin
put 100% of record "Pointer" data to
record "Progression list" data index;
Add 100 % of record "Progression list" data on record "Net Bet to place" Data;
end
end
method "Make Bet"
begin
Put 100% of record "Net Bet to place" data on record "Current Layout to Bet" layout;
end
method "Setup Layout"
begin
Input Dropdown "Make a Layout Selection
1:=Even
2:=Odd
3:=Red
4:=Black
5:=High (19-36)
6:=Low (1-18)" to Record "Layout Selection" data;
If Record "Layout Selection" data = 1
begin
Copy Even to the Record "Current Layout to Bet" layout;
end
Else
begin
If Record "Layout Selection" data = 2
begin
Copy Odd to the Record "Current Layout to Bet" layout;
end
Else
begin
If Record "Layout Selection" data = 3
begin
Copy Red to the Record "Current Layout to Bet" layout;
end
Else
begin
If Record "Layout Selection" data = 4
begin
Copy Black to the Record "Current Layout to Bet" layout;
end
Else
begin
If Record "Layout Selection" data = 5
begin
Copy High to the Record "Current Layout to Bet" layout;
end
Else
begin
If Record "Layout Selection" data = 6
begin
Copy Low to the Record "Current Layout to Bet" layout;
end
end
end
end
end
end
end
method "Maximum Bet Allowed"
begin
Set Flag "Input Ok" to False;
Loop Until Flag "Input Ok" is True
begin
input data "Enter the Maximum bet Allowed.
Once Maximum Bet is reached, the
Progression will start over."
to record "Maximum Bet" data;
if record "Maximum Bet" data < 6 then
begin
Display "Maximum Bet Must be Greater than Minimum Bet of 5 units.";
end
else
begin
Set Flag "Input Ok" to True;
end
end
end