Pair Play

Appendices 1: Total dependent expected return table for an infinite deck 2a: Probabilities of dealer blackjack after peek 2b: Probabilities of dealer blackjack before peek 3a: Exceptions to single-deck S17 basic strategy 3b: Exceptions to double-deck S17 basic strategy 3c: Exceptions to single-deck H17 basic strategy 4: Blackjack standard deviation...

April 16, 2026 • 7:27 AM

Appendices

1: Total dependent expected return table for an infinite deck

2a: Probabilities of dealer blackjack after peek

2b: Probabilities of dealer blackjack before peek

3a: Exceptions to single-deck S17 basic strategy

3b: Exceptions to double-deck S17 basic strategy

3c: Exceptions to single-deck H17 basic strategy

4: Blackjack standard deviation details

5: Infinite deck expected return by player hand and dealer upcard

6: Fine points of when to surrender

7: Effect of card removal

8: Analysis of blackjack side bets

9: Composition-dependent expected returns for 1 to 8 decks

10: Continuous shuffling machine vs. cut card

11: Value and strategy for 678 and 777 bonuses

12: Risk of ruin statistics

13: Probabilities in the first four cards

14: Value of each initial player card

15: House edge using total-dependent vs. composition-dependent basic strategy

16: Basic strategy when dealer exposes both cards

17: The Ace-Five card counting method

18: Basic strategy exceptions for three to six cards

19: Blackjack splitting strategy when a back-player is betting

20: Blackjack doubling strategy when doubling after splitting aces is allowed

21: Details on the Wizard\’s Simple Strategy

Miscellaneous

My comments on the movie "21"

Australian Blackjack

Introduction to Card Counting

Rule Variations

Blackjack "Charlie" Rule

Rummy (Blackjack variant popular in Costa Rica)

External Links

Macau Blackjack rules

Simple Blackjack Explanation

Pair Play

Introduction

Pair Play is a simple side bet by Pala Interactive that pays 11 to 1 if the player's first two cards form a pair. It is mathematically the same as the two pair bets in baccarat.

Analysis

The following table shows the possible outcomes in a six-deck game, the number used in the Side Bet Blackjack game by Pala Interactive. The lower right cell shows a house edge of 11.25%

Pair Play — Six Decks

Event Pays Combinations Probability Return
Win 11 3,588 0.073955 0.813505
Lose -1 44,928 0.926045 -0.926045
Total   48,516 1.000000 -0.112540

The next table shows the house edge only for various numbers of decks.

Pair Play — House Edge

Decks House
Edge
1 29.41%
2 18.45%
3 14.84%
4 13.04%
5 11.97%
6 11.25%
8 10.36%