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A50 Indian Defense: Medusa Gambit8a7b6c5d4e3f2g1h
1.d4 ♘f6 2.c4 g5

A50 is the opening Indian Defense: Medusa Gambit of the volume A · Flank openings: 4 half-moves to the position in the diagram, 7 variations in the ECO table.

What the games say

1,148 games in the collections, from 1898 to 2022. Mean rating of the games with ratings: 2459.

White wins 43 %, draws 29 %, Black wins 28 %

Most games: Mamedyarov,S (25), Speelman, Jonathan S (16), Bosboom, Manuel (15), Grachev,B (14), Aravindh,Chithambaram VR. (12)

All 7 variations

  1. Indian Defense: Medusa Gambit 1.d4 ♘f6 2.c4 g5
  2. Indian Defense: Normal Variation 1.d4 ♘f6 2.c4
  3. Indian Defense: Pyrenees Gambit 1.d4 ♘f6 2.c4 b5
  4. Mexican Defense 1.d4 ♘f6 2.c4 ♘c6
  5. Mexican Defense: Horsefly Gambit 1.d4 ♘f6 2.c4 ♘c6 3.d5 ♘e5 4.f4
  6. Queen's Indian Accelerated 1.d4 ♘f6 2.c4 b6
  7. Slav Indian 1.d4 ♘f6 2.c4 c6