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Pair Square

Introduction

Pair Square

"Pair Square,\" also known as \"Bet the Set\" or \"Any Pair,\" is among the most advantageous side bets in blackjack. It pays out when the player's initial two cards form a pair, with higher rewards for suited pairs. Throughout the years, I've encountered various pay tables related to this bet, and below are return tables for some examples.





Pair Square — 12-10 Pay Table — Six Decks

Event Pays Combinations Probability Return
Suited pair 12 780 0.016077 0.192926
Non-suited pair 10 2808 0.057878 0.578778
No pair -1 44928 0.926045 -0.926045
Total   48516 1.000000 -0.154341

Pair Square — 12-12 Pay Table — Six Decks

Event Pays Combinations Probability Return
Suited pair 12 780 0.016077 0.192926
Non-suited pair 12 2808 0.057878 0.694534
No pair -1 44928 0.926045 -0.926045
Total   48516 1.000000 -0.038585

Pair Square — 15-10 Pay Table — Six Decks

Event Pays Combinations Probability Return
Suited pair 15 780 0.016077 0.241158
Non-suited pair 10 2808 0.057878 0.578778
No pair -1 44928 0.926045 -0.926045
Total   48516 1.000000 -0.106109

Pair Square — 20-10 Pay Table — Six Decks

Event Pays Combinations Probability Return
Suited pair 20 780 0.016077 0.321543
Non-suited pair 10 2808 0.057878 0.578778
No pair -1 44928 0.926045 -0.926045
Total   48516 1.000000 -0.025723

Pair Square — 25-10 Pay Table — Two Decks

Event Pays Combinations Probability Return
Suited pair 25 52 0.009709 0.242718
Non-suited pair 10 312 0.058252 0.582524
No pair -1 4992 0.932039 -0.932039
Total   5356 1.000000 -0.106796

Pair Square — 15 Pay Table — One Deck

Event Pays Combinations Probability Return
Non-suited pair 15 78 0.058824 0.882353
No pair -1 1248 0.941176 -0.941176
Total   1326 1.000000 -0.058824

The following 25-8 pay table is used by Evolution Gaming , referred to as \"Any Pair,\" utilizes eight decks of cards. The rightmost cell indicates a house edge of 4.10%.

Pair Square — 25-8 Payout Structure — Eight Decks

Event Pays Combinations Probability Return
Suited pair 25 1,456 0.016867 0.421687
Non-suited pair 8 4,992 0.057831 0.462651
No pair -1 79,872 0.925301 -0.925301
Total   86,320 1.000000 -0.040964

The following table provides a summary of the house edge for all well-known payout tables, apart from the 25-8 structure, categorized by the number of decks. A negative house edge signifies an advantage for the player, applicable to a combination of table and deck count that is rarely observed.

Pair Square — House Edge Summary

Decks 0-15
Pay table
12-10
Pay table
12-12
Pay table
15-10
Pay table
20-10
Pay table
25-10
Pay table
1 5.88% 35.29% 23.53% 35.29% 35.29% 35.29%
2 5.83% 23.30% 11.65% 20.39% 15.53% 10.68%
3 5.81% 19.35% 7.74% 15.48% 9.03% 2.58%
4 5.80% 17.39% 5.80% 13.04% 5.80% -1.45%
5 5.79% 16.22% 4.63% 11.58% 3.86% -3.86%
6 5.79% 15.43% 3.86% 10.61% 2.57% -5.47%
7 5.79% 14.88% 3.31% 9.92% 1.65% -6.61%
8 5.78% 14.46% 2.89% 9.40% 0.96% -7.47%