C91 is the opening Ruy Lopez: Closed, Bogoljubow Variation of the volume C · Open games: 18 half-moves to the position in the diagram, 3 variations in the ECO table.
What the games say
1,922 games in the collections, from 1897 to 2022. Mean rating of the games with ratings: 2472.
White wins 38 %, draws 39 %, Black wins 23 %
Most games: Van Riemsdijk, Herman C (48), Tseshkovsky, Vitaly (30), Hebden, Mark (27), Rantanen, Yrjo A (20), Romanishin, Oleg M (20)
All 3 variations
- Ruy Lopez: Closed, Bogoljubow Variation 1.e4 e5 2.♘f3 ♘c6 3.♗b5 a6 4.♗a4 ♘f6 5.O-O ♗e7 6.♖e1 b5 7.♗b3 d6 8.c3 O-O 9.d4 ♗g4
- Ruy Lopez: Closed, Yates Variation 1.e4 e5 2.♘f3 ♘c6 3.♗b5 a6 4.♗a4 ♘f6 5.O-O ♗e7 6.♖e1 b5 7.♗b3 d6 8.c3 O-O 9.d4
- Ruy Lopez: Closed, Yates Variation, Short Attack 1.e4 e5 2.♘f3 ♘c6 3.♗b5 a6 4.♗a4 ♘f6 5.O-O ♗e7 6.♖e1 b5 7.♗b3 d6 8.c3 O-O 9.d4 ♗g4 10.a4