Polish Opening: Grigorian Variation

1. b4 Nc6

Polish Opening: Grigorian Variation after 1. b4 Nc6 87654321abcdefgh

The Polish Opening: Grigorian Variation is a chess opening classified as ECO A00, reached after 1. b4 Nc6. It is a line of the Polish Opening. White is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 607 times by this move order. White won 53%, 4% were drawn and Black won 43%. The most popular continuation is 2. b5 (64% of games).

Engine evaluation: +0.28 (Stockfish, depth 43; best line 2. a3 e5 3. Bb2 a6 4. c4 Nf6)

ECO
A00
Moves
2 plies
FEN
r1bqkbnr/pppppppp/2n5/8/1P6/8/P1PPPPPP/RNBQKBNR w KQkq - 1 2
PGN
1. b4 Nc6

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Results by rating

Average ratingGamesWhite / draw / Black
0-149935755%41%
1500-199922252%45%
2000+2839%57%
All60753%43%

Most played moves

MoveGamesWhite / draw / Black
2. b5388 (64%)54%43%
2. Bb296 (16%)57%40%
2. a357 (9%)61%37%
2. c328 (5%)46%50%
2. Ba310 (2%)50%50%
2. c47 (1%)29%14%57%
2. Nc36 (1%)17%83%
2. g44 (1%)25%25%50%

Master games

8 over-the-board games are classified under this line (White 63%, draw -1%, Black 38%). The strongest:

Search all games of the Polish Opening: Grigorian Variation and its sub-variations

Highest-rated Lichess games

Comes from

Polish Opening 1. b4

More Polish Opening lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.