O'Brien, K's chess openings
Peak rating 17446 games
O'Brien, K has 6 tournament games in the ChessPrep database. As White, O'Brien, K most often opens with 1.e4 (100% of games). As Black, against 1.e4 the usual reply is 1...c5, the Sicilian Defense; against 1.d4 it is 1...Nf6.
As White3 games · +0 =2 −1 · 33%
As Black3 games · +1 =1 −1 · 50%
As White
- 1.e4 King's Pawn Opening100%3 games · scores 33% · main line 1.e4 e5 2.f4 exf4 3.Nf3 d6
As Black against 1.e4
- 1...c5 Sicilian Defense50%1 game · scores 0% · main line 1.e4 c5 2.Nf3 d6 3.d4 cxd4
- 1...Nf6 Alekhine's Defense50%1 game · scores 100% · main line 1.e4 Nf6 2.Nc3 e5 3.Nf3 Nc6
As Black against 1.d4
- 1...Nf6 Indian Defense100%1 game · scores 50% · main line 1.d4 Nf6 2.c4 c5 3.d5 b5
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