OptionProbability
No default amongst those listed before 2030
Bermudair
JetBlue
Avelo
Frontier
Allegiant Air
United
American
Southwest
Alaska
Lufthansa
Emirates
Singapore Airlines
Air Canada
Ryanair
Qantas
Cathay Pacific
KLM
Turkish Airlines
Qatar Airlines
ANA
Virgin Atlantic
Iberia
LATAM
Aeromexico
Air New Zealand
Breeze
Sun Country
26
13
5
3
2
Berlin Defense (1.e4 e5 2.Nf3 Nc6 3.Bb5 Nf6)
Queen's Gambit Accepted (1.d4 d5 2.c4 dxc4)
Grünfeld Defense (1.d4 Nf6 2.c4 g6 3.Nc3 d5)
King's Indian Defense (1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6)
Trompowsky Attack (1.d4 Nf6 2.Bg5)
Caro-Kann Defense (1.e4 c6)
Nimzo-Larsen Attack (1.b3)
Dutch Defense (1.d4 f5)
Alekhine's Defense (1.e4 Nf6)
Scandinavian Defense (1.e4 d5)
Evans Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4)
Sicilian Wing Gambit (1.e4 c5 2.b4)
Elephant Gambit (1.e4 e5 2.Nf3 d5)
Blackmar-Diemer Gambit (1.d4 d5 2.e4 dxe4 3.Nc3)
Danish Gambit (1.e4 e5 2.d4 exd4 3.c3)
Rousseau Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 f5)
King's Gambit (1.e4 e5 2.f4)
Latvian Gambit (1.e4 e5 2.Nf3 f5)
Englund Gambit (1.d4 e5)
Stafford Gambit (1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nc6)
Tennison Gambit (1.Nf3 d5 2.e4)
Grob (1.g4)
Sodium Attack (1.Na3)
Clemenz Opening (1.h3)
St. George Defense (1.e4 a6)
Ware Opening (1.a4)
Fred Defense (1.e4 f5)
Orangutan (1.b4)
Cochrane Gambit (1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nxf7)
Halloween Gambit (1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Nxe5)
Bongcloud (1.e4 e5 2.Ke2)
90
87
66
50
48
41
34
17
15
10
8
4
1