Player profile
Costello, Alexander
Dossier
21 of 21 games analyzed.
Accuracy: 88.9%
Opened e4: 3/4Opened Nf3: 1/4
Castled kingside: 6Same-side castling: 6Did not castle: 1
Played in the center: 3Played on the kingside: 2Fianchettoed kingside: 1Fianchettoed queenside: 1Played on the queenside: 1
Space advantage: 4Sacrificed material: 4Kept the bishop pair: 3Missed tactics: 3Isolated pawn: 3Initiated exchanges: 3Active pieces: 3Played gambits: 2Backward pawn: 1Avoided exchanges: 1
Openings
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As White 4 games 0W 3D 1L
King's Indian Defense 1 game 0W 1D 0L
Fianchetto Variation 1 game 0W 1D 0L
Classical Variation
1 game
0W
1D
0L
Ruy Lopez 1 game 0W 0D 1L
Morphy Defense 1 game 0W 0D 1L
Steinitz Deferred
1 game
0W
0D
1L
French Defense 1 game 0W 1D 0L
Winawer Variation 1 game 0W 1D 0L
Delayed Exchange Variation
1 game
0W
1D
0L
Sicilian Defense 1 game 0W 1D 0L
Accelerated Dragon 1 game 0W 1D 0L
Modern Bc4 Variation
1 game
0W
1D
0L
As Black 3 games 1W 0D 2L
Sicilian Defense 1 game 1W 0D 0L
Nyezhmetdinov-Rossolimo Attack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Nimzo-Indian Defense 1 game 0W 0D 1L
Rubinstein System 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
English Opening 1 game 0W 0D 1L
King's English Variation 1 game 0W 0D 1L
Two Knights Variation, Smyslov System
1 game
0W
0D
1L
Blunders Top 4 of 110
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 21 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2024.06.16 | SoCal State Championship | 7 | 2024.06.16 Bryant, John Daniel (2031280) (2404) | ½ | 83.60% | 1. Nf3 Nf6 2. c4 g6 3. g3 Bg7 | |
| 2024.06.16 | SoCal State Championship | 6 | 2024.06.16 Ali Marandi, Cemil Can (6300529) (2511) | 1 | 92.90% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 | |
| 2024.06.14 | Round 5: Costello, Alexander - Eidelman, Gabriel | 2024.06.14 Eidelman, Gabriel (30910544) (2376) | 0 | 86.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2024.06.14 | Round 4: Shlyakhtenko, Robert - Costello, Alexander | 2024.06.14 Shlyakhtenko, Robert (30936934) (2402) | 0 | 87.10% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | ||
| 2024.06.14 | Round 3: Costello, Alexander - Akopian, Vladimir | 2024.06.14 Akopian, Vladimir (13300032) (2586) | ½ | 91.00% | 1. e4 e6 2. d4 d5 3. Nc3 Bb4 | ||
| 2024.06.14 | Round 2: Hakobyan, Eduard - Costello, Alexander | 2024.06.14 Hakobyan, Eduard (13310860) (2297) | 0 | 84.70% | 1. c4 e5 2. Nc3 Nf6 3. g3 Bb4 | ||
| 2024.06.13 | Round 1: Costello, Alexander - Khachiyan, Melikset | 2024.06.13 Khachiyan, Melikset (13300512) (2435) | ½ | 96.80% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | ||
| 2023.07.27 | MTO - 2023 | 10.34 | 2023.07.27 Matsumura, Cocoro (36087114) (2081) | 1 | 92.20% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 | |
| 2023.07.26 | MTO - 2023 | 9.33 | 2023.07.26 Prieb, Robert (16212002) (2060) | * | 97.60% | 1. Nf3 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2023.07.25 | MTO - 2023 | 8.23 | 2023.07.25 Morawietz, Dieter (4603508) (2396) | 0 | 87.10% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2023.07.24 | MTO - 2023 | 7.33 | 2023.07.24 Collin, Moritz Valentin (1342932) (2132) | 1 | 93.90% | 1. c4 e5 2. Qc2 Nf6 3. e3 Nc6 | |
| 2023.07.23 | MTO - 2023 | 6.24 | 2023.07.23 Sukandar, Irine Kharisma (7101937) (2358) | 0 | 88.60% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e6 | |
| 2023.07.21 | MTO - 2023 | 5.27 | 2023.07.21 Seul, Georg (4601653) (2376) | ½ | 91.20% | 1. e4 c6 2. d4 d5 3. e5 c5 | |
| 2023.07.20 | MTO - 2023 | 4.37 | 2023.07.20 Akshit Kumar J (25097431) (2105) | 1 | 84.50% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2023.07.19 | MTO - 2023 | 3.23 | 2023.07.19 Vantika Agrawal (25050389) (2428) | 0 | 89.30% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Nd7 | |
| 2023.07.18 | MTO - 2023 | 2.42 | 2023.07.18 Stijve, Niels (1331124) (2088) | 1 | 94.90% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2023.07.17 | MTO - 2023 | 1.12 | 2023.07.17 Rodrigue-Lemieux, Shawn (2620049) (2495) | 0 | 84.70% | 1. Nf3 d5 2. d4 Nf6 3. c4 e6 | |
| 2023.06.18 | Las Vegas National Open 2023 | 9 | 2023.06.18 Zoey Tang | 1 | 87.40% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2023.06.17 | Las Vegas National Open 2023 | 6 | 2023.06.17 Nico Chasin | 0 | 92.80% | 1. Nf3 Nf6 2. c4 b6 3. Nc3 Bb7 | |
| 2023.06.17 | Las Vegas National Open 2023 | 5 | 2023.06.17 Mark Heimann | ½ | 77.70% | 1. Nf3 d5 2. e3 Nf6 3. c4 e6 | |
| 2023.06.15 | Las Vegas National Open 2023 | 2 | 2023.06.15 Tommy Wen | 0 | 80.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 |