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Poker Hand Strength

3/20/2022

Effective Hand Strength (EHS) is a poker algorithm conceived by computer scientistsDarse Billings, Denis Papp, Jonathan Schaeffer and Duane Szafron that has been published for the first time in a research paper (1998). 'Opponent Modeling in Poker'(PDF). AAAI-98 Proceedings.

While not without flaws, poker winning percentages can reinforce essential Texas Hold’em concepts. Look at these hand charts and notice the average winning percentages. Any hand that has a score over 80 is a premium hand and anything over about 65. Poker Hands Ranked From Strongest to Weakest Royal Flush. The is the best possible hand you can get in standard five-card Poker is called a royal flush. Any five-card sequence in the same suit (e.g., 8, 9, 10, Jack and Queen of clubs. Jan 13, 2021 Other than the hands on that list, the only hands I would recommend a beginner play would be four-way connected hands, such as 8-9-T-J. Hands like these will typically give you a very strong hand on the flop, or a very weak hand, making it difficult to make large mistakes while playing them. Only a few hands have the strength to be viable to continue beyond the pre-flop action. Another important factor is your position. The later you get to act in each round, (i.e. The more people who.

It has since then been considered as a reference in the realm of poker artificial intelligence and has been the basis of further research such as:

  • 'Computer poker: a review'(PDF). Artificial Intelligence, Department of Computer Science, University of Auckland, New Zealand: 962–963. 2010.
  • 'Application of AI in poker'(PDF). VU University Amsterdam Faculty of Sciences: 12–13. 2011.
  • 'Advances in artificial intelligence – SBIA 2008 : 19th Brazilian Symposium on Artificial Intelligence, Salvador, Brazil, October 26–30, 2008 ; proceedings'. 2008: 85–86.Cite journal requires journal= (help)

Algorithm[edit]

The algorithm is a numerical approach to quantify the strength of a poker hand where its result expresses the strength of a particular hand in percentile (i.e. ranging from 0 to 1), compared to all other possible hands.The underlying assumption is that an Effective Hand Strength (EHS) is composed of the current Hand Strength (HS) and its potential to improve or deteriorate (PPOT and NPOT):

EHS=HS×(1NPOT)+(1HS)×PPOT{displaystyle EHS=HStimes (1-NPOT)+(1-HS)times PPOT}
Poker hand strength preflop

where:

  • EHS{displaystyle EHS} is the Effective Hand Strength
  • HS{displaystyle HS} is the current Hand Strength (i.e. not taking into account potential to improve or deteriorate, depending on upcoming table cards
  • NPOT{displaystyle NPOT} is the Negative POTential (i.e. the probability that our current hand, if the strongest, deteriorates and becomes a losing hand)
  • PPOT{displaystyle PPOT} is the Positive POTential (i.e. the probability that our current hand, if losing, improves and becomes the winning hand)

Poker Hand Strength Chart

Pseudocode[edit]

Hand Strength (HS) will enumerate all possible opponent hand cards and count the occurrences where our hand is strongest (+50% of the cases where we are tied):

In addition, EHS will consider the hand potential (i.e. its probabilities to improve or deteriorate):

Applicability[edit]

Poker Hand StrengthPoker Hand Strength

EHS is applicable to a wide variety of poker games such as Texas hold 'em poker, Omaha hold 'em poker, ...

Given the complexity of the algorithm, it can not be computed manually and has to be used in an Artificial Intelligence context.

Poker Hand Strength
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Poker_Effective_Hand_Strength_(EHS)_algorithm&oldid=965430588'

Poker Hands Order Of Strength

Strength

Poker Hand Strength Calculator

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On this site you can find all possible combinations of preflop hands that can occur in Texas Hold'em Poker. As a bonus you will also learn the nicknames of the different hands.

The hands are ranked from #1 to #169, where #1 is the best. This ranking is applicable when the poker table is full ring (9-10 people). The ranking is based on computer calculation results with all the players staying to the river card. It is not applicable to any real play.
If the hand is named XXs then it means the hand is suited, if XXo then the hand is off suit.


#1
AA


Pocket Rockets
American Airlines
The Hand
Bullets
Rocky Mountains

#2
KK


Cowboys
Kamikaze
King Kong
Cold Turkey
Kangaroos

#3
QQ

Hilton Sisters
Ladies
West Hollywood
The Bitches
The Witches
Double Date
4 Tits
Flower Girls

#4
AKs


Big Slick in a suit
Anna Kournikova
Santa Barbara
Mike Haven

#5
JJ


Jokers
Brothers
Hooks
Jackson Hole
SHIP
Gays Online

News »

January 10, 2007
A lot more nicknames added
November 29

More nicknames added

November 25
More nicknames added

November 11, 2006
Site complete with all possible hands.

November 7, 2006
Site was online for the first time.

#6
AQs


Big Chick
Little Slick
Anthony & Cleopatra

#7
KQs


Mamas and Papas
Newlyweds
Marriage
Royal Couple
Parents

#8
AJs


Ajax
Black Jack
Jack Ass
J-birds

#9
KJs


Kojak
King John
Hary Potter
Bachelor's Hand
Tucson Monster

#10
TT


TinTin
Tension
Twenty Miles

#11
AKo


Big Slick
Anna Kournikova

#12
ATs


Johnny Moss
Bookends

#13
QJs


Oedipus
Maverick

#14
KTs


Katie
Big Al

#15
QTs


Quint
Varkony
Gratitude
Greyhound

#16
JTs


Morgan

#17
99


Wayne Gretzky
German Virgin
Popeye's
Phil Hellmuth

#18
AQo


Big Chick
Little slick

#19
A9s


Rounders Hand
Driving the Truck

#20
KQo


Mixed Marriage
Othello

#21
88


Snowmen
Little Oldsmobile
Two Fat Ladies
Catnuts

#22
K9s


Canine
Pair of Dogs
Turner & Hooch
Pedigree
Fido
Sawmill

#23
T9s


Count Down

#24
A8s


Dead Mans Hand

#25
Q9s


Quinine

#26
J9s


Jeanine

#27
AJo


Ace Jack-off

#28
A5s


High Five

#29
77


Buggy Tops
Saturn
Sunset Strip
Hockey Sticks
Mullets
Walking Sticks

#30
A7s


Red Baron

#31
KJo


Kojak
King John
Jack-King-off
Harry Potter

#32
A4s


Sharp Tops
Amen
Tranny's

#33
A3s


Ash Tray
Baskin Robbins

#34
A6s


Mile High

#35
QJo


Maverick
Fred & Ethel

#36
66


Route 66
Kicks

#37
K8s


The Feast
Kokomo

#38
T8s


Tetris
Tenaciously

#39
A2s


Hunting Season
Arizona
Acey-Deucy

#40
98s


Oldsmobile

#41
J8s


Jeffrey Dalmer

#42
ATo


Bookends

#43
Q8s


Kuwait

#44
K7s


King Salmon
Kevin

#45
KTo


Katie
Woodcutter

#46
55

Presto
Double Nickels
Speed Limit
Sammy

#47
JTo


Morgan

#48
87s


RPM
Tahoe

#49
QTo


Quint
Greyhound

#50
44


Robert Varkonyi
Quint
Magnum
Colt 44
Sail Boats
Diana Dors

#51
33

Crabs
City Parks

#52
22

Quackers
Pocket Swans
Ducks
Barely Legal
The Strippers

#53
K6s


The Concubine

#54
97s


Grapefruit

#55
K5s


King of Nickels

#56
76s


America
Union Oil

#57
T7s


The Bowling Hand
Split

#58
K4s


Fork

#59
K3s


King Crab
Sizzler
Commander Crab

#60
K2s


White Men Can't Jump

#61
Q7s


Computer Hand

#62
86s


Eubie
Maxwell Smart

#63
65s


Ken Warren

#64
J7s


Dice Hand

#65
54s


Colt

#66
Q6s


#67
75s


Heinz 57 Sauce

#68
96s


Overtime
Soixante Neuf

#69
Q5s


Granny Mae (if spades)

#70
64s


Revolution
The Rabbit

#71
Q4s


#72
Q3s


Bitch with Crabs
Gay Waiter

#73
T9o


Countdown

#74
T6s

Driver's License

#75
Q2s

Windsor Waiter

#76
A9o

Jesus
Chris Ferguson

#77
53s

#78
85s

Finky Dink

#79
J6s

Jack Sikma

#80
J9o

Emergency
9-11

#81
K9o

Sawmill

#82
J5s

Jackson Five
Motown

#83
Q9o

Quinine

#84
43s

Waltz Time

#85
74s

Barn Owl

#86
J4s

Done Hand
Jermaine
Flat Tire

#87
J3s

J-Lo
Bird Table

#88
95s

Dolly Parton
Hard Working

#89
J2s

The Jew

#90
63s

JFK
Three Dozen

#91
A8o

Dead Man's Hand

#92
52s

Two Bits
Quarter

#93
T5s

Dimestore
Woolworth
Five and Dime

#94
84s

Big Brother
George Orwell

#95
T4s

Roger That
Over and Out
Convoy
The Good Buddy

#96
T3s

#97
42s

The Answer
Lumberjack

#98
T2s

Texas Dolly
Terminator II

#99
98o

Oldsmobile

#100
T8o

Tetris

#101
A5o

High Five

#102
A7o

Red Baron

#103
73s

Dutch Waiter
Swedish Busboy

#104
A4o

Crashing Airlines

#105
32s

Hooter Hand
Jordan

#106
94s

San Fransisco

#107
93s

Jack Benny

#108
J8o

Jeffery Dalmer

#109
A3o

Baskin Robbins
Ash Tray

#110
62s

#111
92s

Twiggy

#112
K8o

The Feast
Dr Spoon
Kokomo

#113
A6o

Mile High

#114
87o

Tahoe

#115
Q8o

Kuwait

#116
83s

Raquel Welch

#117
A2o

Arizona
Big Balls
Hunting Season

#118
82s

Fat Lady and a Duck

#119
97o

Grapefruit

#120
72s

Beer Hand

#121
76o

Union Oil

#122
K7o

King Salmon

#123
65o

Ken Warren

#124
T7o

Split

#125
K6o

The Concubine

#126
86o

Maxwell Smart

#127
54o

Colt 45
Jesse James
Jane Russell

#128
K5o

Rotten Cowboy

#129
J7o

Dice

#130
75o

Filipino Slick
Heinz

#131
Q7o

Computer Hand

#132
K4o

Fork

#133
K3o

Commander Crab
King Crab

#134
96o

Percy

#135
K2o

Big Fritz

#136
64o

The Question

#137
Q6o

#138
53o

Bully Johnson

#139
85o

The Scag

#140
T6o

Sweet Sixteen

#141
Q5o

#142
43o

Waltz Time

#143
Q4o

#144
Q3o

Gay Waiter

#145
74o

Cambodian Slick

#146
Q2o

The Vesty

#147
J6o

Jack Sikma

#148
63o

JFK
Blocky

#149
J5o

Jackson Five

#150
95o

Dolly Parton

#151
52o

Quarter

#152
J4o

Kid Grenade

#153
J3o

Fortran

#154
42o

The Answer

#155
J2o

Bennifer

#156
84o

Big Brother

#157
T5o

Nickels and Dimes

#158
T4o

CB Hand
Roger That

#159
32o

Big Gulp
Hooter Hand
Mississippi Slick
Can of Corn

#160
T3o

#161
73o

Rusty Trombone

#162
T2o

Texas Dolly

#163
62o

Bed & Breakfast

#164
94o

Joe Montana Banana

#165
93o

Jack Benny

#166
92o

Montana Banana
Twiggy

#167
83o

Suzanna Banana
Sven
Raquel Welch

#168
82o

Sixty Nine

#169
72o

Death
The Big Man Hand
The Hammer

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