Formation

Formation is a named opening in the book. The main stored line runs a3, e5, b3, d5, c3, Nf6, d3, Nc6. The book has 2 lines under this name, across ECO codes A00 to A00.

2 lines in the book · ECO A00

Play the main line

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

Formation: Hippopotamus Attack

Play the next move in the line.

  1. a3
  2. e5
  3. b3
  4. d5
  5. c3
  6. Nf6
  7. d3
  8. Nc6
  9. e3
  10. Bd6
  11. f3
  12. O-O
  13. g3

Move by move

  1. White pawn moves from a2 to a3.
  2. Black pawn moves from e7 to e5.
  3. White pawn moves from b2 to b3.
  4. Black pawn moves from d7 to d5.
  5. White pawn moves from c2 to c3.
  6. Black knight moves from g8 to f6.
  7. White pawn moves from d2 to d3.
  8. Black knight moves from b8 to c6.
  9. White pawn moves from e2 to e3.
  10. Black bishop moves from f8 to d6.
  11. White pawn moves from f2 to f3.
  12. Black castles kingside.
  13. White pawn moves from g2 to g3.

Variations

Hippopotamus Attack1 lines · A00Shy Attack1 lines · A00