Chess Opening Theory/1. e3/1...e5/2. e4


King's Isa Reverse Opening
a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 h3 3
2 a2 b2 c2 d2 e2 f2 g2 h2 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e3 e5 2. e4
ECO code: A00
Parent: Van 't Kruijs Opening

1. e3 e5 2. e4 - King's Isa Reverse OpeningEdit

An irregular opening, considered somewhat passive. Play may transpose to lines of the Chess/Reverse Petrov Defense (Nf6–Nf3), Chess/Reverse Englund Gambit (e4–d5), or reversed Rousseau Gambit (Nf6,Nc3-Bc5,f4).

The King's Isa Reverse Opening is not popular. According to ChessBase, it ranks eleventh in popularity out of the twenty possible first moves.

After Van't Kruijs Opening 1.e3 e5, White play 2.e4!? , therefore making it a truly reversed Double King's Pawn Opening (or Open Game). This is often used when White has much knowledge of the opening when playing as Black. Therefore, this can be used to ensnare a few opponents into traps. However, since this gives the first move advantage to Black straight away, this is not recommended. Similarly, 1.e3 f5 2.e4 goes to a reversed From's Gambit, where White is practically playing as Black.

StatisticsEdit

Not enough data as opening is rarely played.

Theory tableEdit

For explanation of theory tables, see theory table and for notation, see algebraic notation..

Theory tableEdit

1. e3-e5
2. e4
2 3 4 5 6 7 8 9
Chess/Blackburne Shilling Gambit Nf6
Nc3

Bc5

Nd5

Nxd5

exd5

c6

Nf3

0-0

d4

exd4

Nxd4

cxd5

c3

Nc6

Chess Rousseau Gambit Reverse Nf6
Nc3

Bc5

f4

d5

exd5

Nxd5

Nf3

Nxf4

d4

exd4

Bxf4

dxc4

Qxd8

Kxd8

Chess Stafford Gambit Reverse Nf6
Nf3

Nxe4

Nc3

Nxc3

dxc3
Chess Jaenisch Gambit Reverse Nf6 Nc3

Bb4

f4

Nc6

fxe5

Nxe5

Nf3
Chess Giuoco Piano Reverse Nf6 Nc3

Bc5

Bc4

0-0

Nf3
Chess Two Knight's Defence Reverse Bc4 Nf3

Nf6

Nc3

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ReferencesEdit

https://lichess.org/study/bOtkXznC