Ruben Gideon Koellner's chess openings
Peak rating 248540 games
Ruben Gideon Koellner has 40 tournament games in the ChessPrep database. As White, Ruben Gideon Koellner most often opens with 1.d4 (90% of games). As Black, against 1.e4 the usual reply is 1...d6, the Pirc Defense; against 1.d4 it is 1...d5.
As White20 games · +10 =8 −2 · 70%
As Black20 games · +10 =4 −6 · 60%
As White
- 1.d4 Queen's Pawn Opening90%18 games · scores 69% · main line 1.d4 Nf6 2.Nf3 g6 3.Nbd2 d5
- 1.e4 King's Pawn Opening5%1 game · scores 100% · main line 1.e4 c6 2.Nc3 d5 3.Nf3 Bg4
- 1.Nf3 Réti Opening5%1 game · scores 50% · main line 1.Nf3 d5 2.g3 g6 3.d4 Bg7
As Black against 1.e4
- 1...d6 Pirc Defense50%6 games · scores 58% · main line 1.e4 d6 2.d4 Nf6 3.Nc3 e5
- 1...e5 Open Game50%6 games · scores 83% · main line 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6
As Black against 1.d4
- 1...d5 Closed Game60%3 games · scores 33% · main line 1.d4 d5 2.c4 e6 3.Nf3 Nf6
- 1...d640%2 games · scores 75% · main line 1.d4 d6 2.e4 Nf6 3.Bd3 e5
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