Ja2 Petr's chess openings
FM🇨🇿 CzechiaFIDE 2282507 games
Ja2 Petr, FIDE Master from Czechia, has 507 tournament games in the ChessPrep database. As White, Ja2 Petr most often opens with 1.d4 (72% of games). As Black, against 1.e4 the usual reply is 1...e5, the Open Game; against 1.d4 it is 1...Nf6.
As White259 games · +120 =28 −111 · 52%
As Black248 games · +98 =20 −130 · 44%
As White
- 1.d4 Queen's Pawn Opening72%187 games · scores 49% · main line 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7
- 1.e4 King's Pawn Opening26%68 games · scores 58% · main line 1.e4 c5 2.Nf3 d6 3.d4 cxd4
- 1.f4 Bird's Opening0%1 game · scores 100% · main line 1.f4 e6 2.Nf3 Nf6 3.b3 d5
As Black against 1.e4
- 1...e5 Open Game72%80 games · scores 41% · main line 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5
- 1...e6 French Defense18%20 games · scores 35% · main line 1.e4 e6 2.d4 d5 3.Nd2 Nf6
- 1...c5 Sicilian Defense9%10 games · scores 45% · main line 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4
As Black against 1.d4
- 1...Nf6 Indian Defense78%62 games · scores 56% · main line 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4
- 1...d5 Closed Game21%17 games · scores 38% · main line 1.d4 d5 2.c4 e5 3.dxe5 d4
- 1...g6 Modern Defense1%1 game · scores 100% · main line 1.d4 g6 2.Bf4 Bg7 3.Nf3 d6
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ChessPrep shows every line Ja2 Petr plays as White and as Black, where they score worst, and how your own openings cover them — then drills your answers.
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