Rat Defense Chess

In the opening book this is Rat Defense.

Rat Defense is a named opening in the book. The main stored line runs e4, d6, f4. The book has 11 lines under this name, across ECO codes A41 to C00.

11 lines in the book · ECO A41 to C00 · 4,165 tagged puzzles in the source database

Play the main line

8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h

Rat Defense: Harmonist

Play the next move in the line.

  1. e4
  2. d6
  3. f4

Move by move

  1. White pawn moves from e2 to e4.
  2. Black pawn moves from d7 to d6.
  3. White pawn moves from f2 to f4.

Variations

English Rat3 lines · A41Balogh Defense1 lines · A82Antal Defense1 lines · B00Fuller Gambit1 lines · B00Harmonist1 lines · B00Petruccioli Attack1 lines · B00Spike Attack1 lines · B00Accelerated Gurgenidze1 lines · B06Small Center Defense1 lines · C00

Named gambits and traps

3 lines in this family have "gambit" or "trap" in the name. The list shows 3.

Puzzles from this opening

8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h

Puzzle rating 1,365 · played 6,359 times in the source set

Find the move.

Solved in a row: 0. The next puzzle stays near rating 1,400.

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