Keres or Kangaroo Defense (1.d4 e6 2.c4 Bb4+): check and simplify
Want a defense against 1.d4 that’s simple, solid and low on theory? The Keres Defense —or Kangaroo— gives check from move 2 to trade pieces and breathe easy.
The main idea
After 1.d4 e6 2.c4, Black gives check with 2…Bb4+. That check forces White to commit their development and opens the door to trades and simplification.
- The bishop “hops” to b4 giving check: hence the nickname Kangaroo. 🦘
- Seeks to trade pieces and simplify.
- It’s flexible: it can transpose into the Bogo-Indian.
The first moves
You play Black. You give the thematic check Bb4+; when White blocks with the bishop, you trade on d2 simplifying toward a comfortable, weakness-free game.
Who is it for?
For positional players who prefer to simplify and avoid heavy theory. If you like the early-check idea, check out its cousin the Bogo-Indian Defense and the English Defense.
Related openings: Semi-closed openings · Bogo-Indian Defense · English Defense · All openings
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Preguntas frecuentes
What is the Keres Defense?
It's the reply 1.d4 e6 2.c4 Bb4+, also called the Kangaroo Defense. The early check forces White to block with a piece and lets Black seek trades and simplification, or transpose into other defenses like the Bogo-Indian.
Why is it called the Kangaroo Defense?
Because of the bishop's 'jump' as it checks on b4 right at the start. The name Keres honors the great Estonian master Paul Keres, who explored these early-check ideas against 1.d4.
Is the Keres Defense good?
It's a solid, flexible defense, though somewhat modest in ambition. Trading off the dark-squared bishop simplifies the game and reduces the theory to study, which makes it very practical for positional players.