Player profile
Ruben Gideon KOELLNER
Dossier
37 of 37 games analyzed.
Accuracy: 93.9%
Opened d4: 17/19Opened Nf3: 1/19Opened e4: 1/19
Castled kingside: 28Same-side castling: 25Did not castle: 6Castled queenside: 3Opposite-side castling: 1
Played in the center: 17Played on the kingside: 8Played on the queenside: 7Fianchettoed kingside: 5Fianchettoed queenside: 3
Active pieces: 27Space advantage: 22Initiated exchanges: 20Kept the bishop pair: 20Sacrificed material: 17Isolated pawn: 16Backward pawn: 16Avoided exchanges: 11Played gambits: 6Missed tactics: 4
Openings
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As White 19 games 11W 6D 2L
Queen's Pawn Game 10 games 7W 2D 1L
Colle System 3 games 2W 1D 0L
(unspecified)
2 games
1W
1D
0L
Anti-Colle
1 game
1W
0D
0L
Zukertort Variation 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
London System 2 games 1W 0D 1L
(unspecified)
2 games
1W
0D
1L
Symmetrical Variation 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Trompowsky Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Queen's Indian Defense 1 game 1W 0D 0L
Spassky System3 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Sicilian Defense 1 game 0W 1D 0L
Hyperaccelerated Pterodactyl 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
East Indian Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's Indian Attack 1 game 0W 1D 0L
Double Fianchetto 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Indian Defense 1 game 0W 1D 0L
Czech-Indian 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Caro-Kann Defense 1 game 1W 0D 0L
Two Knights Attack 1 game 1W 0D 0L
Mindeno Variation
1 game
1W
0D
0L
Horwitz Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Slav Defense 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
Boor Attack
1 game
0W
0D
1L
As Black 18 games 9W 4D 4L
Philidor Defense 5 games 2W 1D 1L
Lion Variation 5 games 2W 1D 1L
(unspecified)
4 games
1W
1D
1L
Shirov Gambit
1 game
1W
0D
0L
Ruy Lopez 4 games 2W 2D 0L
Morphy Defense 2 games 1W 1D 0L
Classical Defense Deferred
1 game
1W
0D
0L
Møller Variation
1 game
0W
1D
0L
Classical Variation 1 game 0W 1D 0L
Central Variation
1 game
0W
1D
0L
Classical Defense 1 game 1W 0D 0L
Benelux Variation
1 game
1W
0D
0L
Zukertort Opening 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
(unspecified)
2 games
1W
0D
1L
Queen's Gambit Declined 1 game 0W 0D 1L
Exchange Variation 1 game 0W 0D 1L
Reshevsky Variation
1 game
0W
0D
1L
Italian Game 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
Greco Gambit, Modern Line
1 game
1W
0D
0L
King's Indian Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Bishop's Opening 1 game 1W 0D 0L
Paulsen Defense 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Bogo-Indian Defense 1 game 1W 0D 0L
Retreat Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Old Indian Defense 1 game 1W 0D 0L
Normal Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Pirc Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Blunders Top 4 of 94
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 37 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2023.10.29 | Round 9: Ruben Gideon Koellner - Martin Petrov | 2023.10.29 Martin Petrov (2500) | ½ | 96.00% | 1. d4 Nf6 2. Bg5 d5 3. e3 c5 | ||
| 2023.10.28 | Round 8: Szymon Gumularz - Ruben Gideon Koellner | 2023.10.28 Szymon Gumularz (2581) | 0 | 93.30% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | ||
| 2023.10.27 | Round 7: Ruben Gideon Koellner - Paulius Pultinevicius | 2023.10.27 Paulius Pultinevicius (2586) | 1 | 85.20% | 1. d4 Nf6 2. Nf3 b6 3. e3 Bb7 | ||
| 2023.10.26 | Round 6: Bennet Hagner - Ruben Gideon Koellner | 2023.10.26 Bennet Hagner (2307) | ½ | 95.30% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | ||
| 2023.10.26 | Round 5: Ruben Gideon Koellner - Pijus Stremavicius | 2023.10.26 Pijus Stremavicius (2359) | 1 | 98.20% | 1. d4 d5 2. Nf3 e6 3. c3 c5 | ||
| 2023.10.25 | Round 4: Johannes Tschernatsch - Ruben Gideon Koellner | 2023.10.25 Johannes Tschernatsch (2346) | 1 | 98.00% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | ||
| 2023.10.24 | Round 3: Ruben Gideon Koellner - Mikhail Tobak | 2023.10.24 Mikhail Tobak (2313) | ½ | 95.30% | 1. d4 g6 2. Nf3 Bg7 3. e4 c5 | ||
| 2023.10.24 | Round 2: Keyvan Farokhi - Ruben Gideon Koellner | 2023.10.24 Keyvan Farokhi (2274) | 1 | 96.90% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | ||
| 2023.10.23 | Round 1: Ruben Gideon Köllner - Levi Malinowsky | 2023.10.23 Levi Malinowsky (2151) | 1 | 94.70% | 1. d4 Nf6 2. Nf3 g6 3. Nbd2 d5 | ||
| 2023.10.01 | Round 11: Filip HARING - Ruben Gideon KOELLNER | 2023.10.01 Filip HARING (2441) | * | 88.70% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | ||
| 2023.09.30 | Round 10: Ruben Gideon KOELLNER - Tobias KOELLE | 2023.09.30 Tobias KOELLE (2458) | ½ | 95.40% | 1. Nf3 d5 2. g3 g6 3. d4 Bg7 | ||
| 2023.09.29 | Round 9: Noah FECKER - Ruben Gideon KOELLNER | 2023.09.29 Noah FECKER (2396) | 1 | 94.70% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2023.09.28 | Round 8: Ruben Gideon KOELLNER - Sharma DUSHYANT | 2023.09.28 Sharma DUSHYANT (2339) | 0 | 92.20% | 1. d4 d5 2. Bf4 Nf6 3. e3 c5 | ||
| 2023.09.27 | Round 7: Gleb DUDIN - Ruben Gideon KOELLNER | 2023.09.27 Gleb DUDIN (2537) | 0 | 89.30% | 1. Nf3 d5 2. g3 Nd7 3. d4 Nb6 | ||
| 2023.09.26 | Round 6: Ruben Gideon KOELLNER - Rudik MAKARIAN | 2023.09.26 Rudik MAKARIAN (2548) | 1 | 95.70% | 1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5 | ||
| 2023.09.24 | Round 5: Nikolozi KACHARAVA - Ruben Gideon KOELLNER | 2023.09.24 Nikolozi KACHARAVA (2528) | ½ | 97.90% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 | ||
| 2023.09.23 | Round 4: Ruben Gideon KOELLNER - Arseniy NESTEROV | 2023.09.23 Arseniy NESTEROV (2575) | ½ | 97.20% | 1. d4 Nf6 2. Nf3 c6 3. c3 d5 | ||
| 2023.09.22 | Round 3: Ruben Gideon KOELLNER - Konstantin PEYRER | 2023.09.22 Konstantin PEYRER (2430) | 1 | 100.00% | |||
| 2023.09.22 | Round 2: Juan Sebastian MELIAN - Ruben Gideon KOELLNER | 2023.09.22 Juan Sebastian MELIAN (2295) | 1 | 96.50% | 1. e4 e5 2. Bc4 Nf6 3. d3 c6 | ||
| 2023.09.22 | Round 1: Ruben Gideon KOELLNER - Emmanuel DIAZ GONZALEZ JARDON | 2023.09.22 Emmanuel DIAZ GONZALEZ JARDON (1919) | 1 | 93.70% | 1. d4 d5 2. Nf3 Nf6 3. e3 Bf5 | ||
| 2023.07.02 | Round 9: Ruben Gideon Koellner - Dinara Wagner | 2023.07.02 Dinara Wagner | ½ | 93.90% | 1. d4 Nf6 2. Nf3 d5 3. c3 e6 | ||
| 2023.07.01 | Round 8: Hussain Besou - Ruben Gideon Koellner | 2023.07.01 Hussain Besou | 1 | 96.90% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 | ||
| 2023.06.30 | Round 7: Ruben Gideon Koellner - Karthik Venkataraman | 2023.06.30 Karthik Venkataraman (25006479) | ½ | 96.90% | 1. d4 d5 2. Nf3 Nf6 3. e3 c5 | ||
| 2023.06.29 | Round 6: Arthur De Winter - Ruben Gideon Koellner | 2023.06.29 Arthur De Winter | 0 | 83.80% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | ||
| 2023.06.28 | Round 5: Ruben Gideon Koellner - Georgios Souleidis | 2023.06.28 Georgios Souleidis | 1 | 95.40% | 1. d4 d5 2. Nf3 Nf6 3. c3 Bf5 | ||
| 2023.06.27 | Round 4: Alexander Bagrationi - Ruben Gideon Koellner | 2023.06.27 Alexander Bagrationi | 1 | 95.40% | 1. d4 d5 2. c4 e6 3. Nf3 Nf6 | ||
| 2023.06.26 | Round 3: Ruben Gideon Koellner - Mihail Saltaev | 2023.06.26 Mihail Saltaev | 1 | 97.70% | 1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 | ||
| 2023.06.25 | Round 2: Vadym Petrovskiy - Ruben Gideon Koellner | 2023.06.25 Vadym Petrovskyi | ½ | 95.40% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2023.06.24 | Round 1: Jana Schneider - Ruben Gideon Koellner | 2023.06.24 Jana Schneider | 1 | 93.70% | 1. e4 d6 2. d4 Nf6 3. Nc3 e5 | ||
| 2023.03.12 | Round 9: Ruben Gideon Koellner - Kaloyan Popvasilev | 2023.03.12 Kaloyan Popvasilev | 1 | 97.80% | 1. d4 e6 2. Nf3 b6 3. Nbd2 Bb7 | ||
| 2023.03.11 | Round 8: Aaron Noah Koellner - Ruben Gideon Koellner | 2023.03.11 Aaron Noah Koellner | 1 | 89.30% | 1. Nf3 d5 2. e3 Nd7 3. c4 e6 | ||
| 2023.03.10 | Round 7: Ruben Gideon Koellner - Jan Pubantz | 2023.03.10 Jan Pubantz | 0 | 88.30% | 1. d4 d5 2. c4 c6 3. cxd5 cxd5 | ||
| 2023.03.09 | Round 6: Diptayan Ghosh - Ruben Gideon Koellner | 2023.03.09 Diptayan Ghosh | 0 | 87.30% | 1. Nf3 d5 2. e3 Nf6 3. c4 e6 | ||
| 2023.03.08 | Round 5: Ruben Gideon Koellner - Makan Rafiee | 2023.03.08 Makan Rafiee | 1 | 95.10% | 1. d4 d5 2. Nf3 c6 3. e3 Nf6 | ||
| 2023.03.07 | Round 4: Christoph Ramme - Ruben Gideon Koellner | 2023.03.07 Christoph Ramme | 1 | 85.80% | 1. d4 d6 2. Nf3 Nf6 3. c4 Nbd7 | ||
| 2023.03.06 | Round 3: Matthias Bach - Ruben Gideon Koellner | 2023.03.06 Matthias Bach | ½ | 90.80% | 1. d4 d6 2. e4 Nf6 3. Bd3 e5 | ||
| 2023.03.05 | Round 1: Ruben Gideon Koellner - Anton Weigand | 2023.03.05 Anton Weigand | 1 | 96.90% | 1. d4 d5 2. Nf3 Nf6 3. e3 e6 |