Rat Defense, English Rat

Rat Defense

a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h
Moves	1.d4 d6 2.c4 e5
ECO	A41
Parent	Old Indian Defense

The Rat Defense, English Rat is an irregular Queen's Pawn Game chess opening characterised by the initial moves:

1. d4 d6

2. c4 e5

The position can also arise from the move order 1.c4 d6 2.d4 e5.

Lisbon Gambit

One notable variation of the English Rat is the Lisbon Gambit which arises from:

1.d4 d6 2.c4 e5 3. dxe5 Nc6, which usually continues 4. exd6 Bxd6 or (4...Qxd6).

Rat Defense, Small Center Defense

Rat Defense, Small Center Defense

a b c d e f g h 8 8 7 7 6 6 5 5 4 4 3 3 2 2 1 1 a b c d e f g h
Moves	1.d4 d6 2.e4 e6
ECO	C00
Parent	Pirc/Horwitz/French

There is also an irregular chess opening called the Rat Defense, Small Center Defense which can arise from multiple move orders:

• 1. d4 d6 2. e4 e6 (Queen's Pawn Game transposition Pirc Defence move order)
• 1. d4 e6 2. e4 d6 (Horwitz Defence move order)
• 1. e4 d6 2. d4 e6 (Pirc Defense move order)
• 1. e4 e6 2. d4 d6 (French Defense move order)

See also

• List of chess openings

References

Bibliography

• Jouni Yrjölä and Jussi Tella (2001). An Explosive Chess Opening Repertoire for Black. Gambit Publications Ltd. ISBN 1-901983-501.