Player profile
Kosten, Anthony C.
Dossier
55 of 62 games analyzed.
Accuracy: 94.1%
Opened c4: 11/16Opened Nf3: 5/16
Castled kingside: 34Same-side castling: 27Opposite-side castling: 5Castled queenside: 4Did not castle: 2
Played in the center: 16Fianchettoed kingside: 14Fianchettoed queenside: 11Played on the queenside: 9Played on the kingside: 5
Initiated exchanges: 30Active pieces: 27Kept the bishop pair: 25Space advantage: 23Sacrificed material: 22Backward pawn: 22Isolated pawn: 13Played gambits: 6Avoided exchanges: 5Accepted short draws: 5
Openings
Click "+" to add that group to the games list below. Multiple groups can be added at once.
As White 19 games 11W 8D 0L
English Opening 12 games 7W 5D 0L
Symmetrical Variation 4 games 3W 1D 0L
Ultra-Symmetrical Variation
2 games
1W
1D
0L
Rubinstein Variation
1 game
1W
0D
0L
Three Knights, Fianchetto Variation
1 game
1W
0D
0L
Agincourt Defense 4 games 2W 2D 0L
Neo-Catalan Declined
3 games
1W
2D
0L
Catalan Defense Accepted
1 game
1W
0D
0L
King's English Variation 3 games 2W 1D 0L
(unspecified)
2 games
2W
0D
0L
Four Knights Variation, Fianchetto Line
1 game
0W
1D
0L
Anglo-Indian Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
King's Indian Attack 2 games 1W 1D 0L
Double Fianchetto 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Caro-Kann Defense 2 games 0W 2D 0L
Panov Attack 2 games 0W 2D 0L
(unspecified)
1 game
0W
1D
0L
Modern Defense, Mieses Line
1 game
0W
1D
0L
Réti Opening 1 game 1W 0D 0L
Anglo-Slav Variation 1 game 1W 0D 0L
Bogoljubow Variation, Stonewall Line
1 game
1W
0D
0L
Ruy Lopez 1 game 1W 0D 0L
Morphy Defense 1 game 1W 0D 0L
Tarrasch Variation
1 game
1W
0D
0L
Philidor Defense 1 game 1W 0D 0L
Lion Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
As Black 28 games 9W 18D 1L
Ruy Lopez 8 games 2W 6D 0L
Morphy Defense 4 games 0W 4D 0L
Modern Steinitz Defense
2 games
0W
2D
0L
Cozio Defense
1 game
0W
1D
0L
Classical Defense Deferred
1 game
0W
1D
0L
Cozio Defense 2 games 0W 2D 0L
(unspecified)
2 games
0W
2D
0L
Closed 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Exchange Variation 1 game 1W 0D 0L
King's Bishop Variation
1 game
1W
0D
0L
Bogo-Indian Defense 5 games 2W 2D 1L
Exchange Variation 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Wade-Smyslov Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Nimzowitsch Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Grünfeld Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's Indian Attack, with e6 3 games 0W 3D 0L
(unspecified) 3 games 0W 3D 0L
(unspecified)
3 games
0W
3D
0L
Rapport-Jobava System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Gambit Declined 1 game 0W 1D 0L
Semi-Tarrasch Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Queen's Indian Defense, with e3 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
English Opening 1 game 0W 1D 0L
Anglo-Indian Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Italian Game 1 game 1W 0D 0L
Two Knights Defense 1 game 1W 0D 0L
Modern Bishop's Opening
1 game
1W
0D
0L
Bishop's Opening 1 game 0W 1D 0L
Paulsen Defense 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Queen's Indian Defense 1 game 1W 0D 0L
Kasparov Variation 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
Ponziani Opening 1 game 1W 0D 0L
Jaenisch Counterattack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Catalan Opening 1 game 1W 0D 0L
Open Defense 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Nimzo-Indian Defense 1 game 0W 1D 0L
Kmoch Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Scotch Game 1 game 0W 1D 0L
Schmidt Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Blunders Top 4 of 113
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 62 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.09.04 | Round 9: Jaderberg, Bjorn - Kosten, Anthony C. | 9.6 | 2026.09.04 Jaderberg, Bjorn (1712403) (2059) | 1 | 95.00% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 e6 | |
| 2026.09.03 | Round 8: Westerinen, Heikki M.J. - Kosten, Anthony C. | 8.2 | 2026.09.03 Westerinen, Heikki M.J. (500020) (2205) | ½ | 90.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.09.02 | Round 7: Baker, Chris W - Kosten, Anthony C. | 7.1 | 2026.09.02 Baker, Chris W (401676) (2174) | ½ | 96.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.09.01 | Round 6: Lederman, Leon - Kosten, Anthony C. | 6.6 | 2026.09.01 Lederman, Leon (2800403) (2153) | 1 | 91.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.08.31 | Round 5: Kosten, Anthony C. - Ortega, Lexy | 5.2 | 2026.08.31 Ortega, Lexy (811416) (2337) | ½ | 92.70% | 1. Nf3 d5 2. g3 g6 3. Bg2 Bg7 | |
| 2026.08.30 | Round 4: Mikhalchishin, Adrian - Kosten, Anthony C. | 4.2 | 2026.08.30 Mikhalchishin, Adrian (14602385) (2415) | ½ | 91.50% | 1. d4 Nf6 2. Nf3 e6 3. c4 d5 | |
| 2026.08.28 | Round 2: Hugentobler, Patrick - Kosten, Anthony C. | 2.6 | 2026.08.28 Hugentobler, Patrick (1301497) (2168) | 1 | 98.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.08.27 | Round 1: Kosten, Anthony C. - Kowalczuk, Wojciech | 1.6 | 2026.08.27 Kowalczuk, Wojciech (1103784) (2029) | 1 | 96.00% | 1. Nf3 Nf6 2. c4 e6 3. g3 d5 | |
| 2026.04.28 | Round 9: Kosten, Anthony C. - Petursson, Margeir | 9.6 | 2026.04.28 Petursson, Margeir (2300028) (2387) | ½ | 92.40% | 1. c4 c5 2. g3 g6 3. Bg2 Bg7 | |
| 2026.04.27 | Round 8: Kosten, Anthony C. - Sandner, Gunter | 8.13 | 2026.04.27 Sandner, Gunter (4646401) (2230) | 1 | 96.60% | 1. c4 e5 2. g3 Nf6 3. Bg2 h6 | |
| 2026.04.26 | Round 7: Kosten, Anthony C. - Binham, Timothy F. | 7.14 | 2026.04.26 Binham, Timothy F. (500151) (2208) | 1 | 97.10% | 1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 | |
| 2026.04.25 | Round 6: Knaak, Rainer - Kosten, Anthony C. | 6.6 | 2026.04.25 Knaak, Rainer (4611250) (2401) | ½ | 95.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2026.04.23 | Round 5: Kosten, Anthony C. - Bykhovsky, Avigdor | 5.2 | 2026.04.23 Bykhovsky, Avigdor (4101057) (2315) | ½ | 87.80% | 1. c4 e6 2. Nf3 d5 3. g3 Nf6 | |
| 2026.04.22 | Round 4: Buchal, Stephan - Kosten, Anthony C. | 4.2 | 2026.04.22 Buchal, Stephan (4603915) (2216) | ½ | 90.50% | 1. c4 Nf6 2. g3 e6 3. Bg2 d5 | |
| 2026.04.21 | Round 3: Kosten, Anthony C. - Motuz, Karol | 3.6 | 2026.04.21 Motuz, Karol (14902621) (2233) | 1 | 94.10% | 1. c4 e6 2. g3 d5 3. Bg2 Nf6 | |
| 2026.04.20 | Round 2: Wengholm, Anders - Kosten, Anthony C. | 2.6 | 2026.04.20 Wengholm, Anders (1704818) (2165) | ½ | 93.60% | 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 | |
| 2025.04.12 | ESTCC65 | 8.5 | 2025.04.12 Maier, Christian (4601955) (2233) | 1 | 97.70% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 | |
| 2025.04.11 | ESTCC65 | 7.10 | 2025.04.11 Kyas, Juergen (4618157) (2168) | ½ | 95.50% | 1. e4 e5 2. Bc4 Nf6 3. d3 c6 | |
| 2025.04.10 | ESTCC65 | 6.2 | 2025.04.10 Bowmer, Kevin (416690) (2126) | 1 | 95.30% | 1. c4 c5 2. g3 g6 3. Bg2 Bg7 | |
| 2025.04.09 | ESTCC65 | 5.14 | 2025.04.09 Sobocanec, Alojz (14524520) (1792) | 1 | 87.70% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2025.04.07 | ESTCC65 | 3.14 | 2025.04.07 Woestmann, Hans-Joachim (12963925) (2029) | 1 | 92.40% | 1. Nf3 d5 2. g3 Nf6 3. Bg2 e6 | |
| 2025.04.06 | ESTCC65 | 2.2 | 2025.04.06 Zyla, Janusz (1102338) (2181) | ½ | 98.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.02.26 | World Senior Team 2025 S65 | 9.2 | 2025.02.26 Schmidt, Bodo (4601505) (2256) | ½ | 99.70% | 1. c4 c6 2. e4 d5 3. exd5 cxd5 | |
| 2025.02.25 | World Senior Team 2025 S65 | 8.3 | 2025.02.25 Baker, Chris W (401676) (2150) | 1 | - | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.02.24 | World Senior Team 2025 S65 | 7.3 | 2025.02.24 Sharif, Mehrshad (600121) (2318) | ½ | - | 1. Nf3 Nf6 2. g3 e6 3. Bg2 d5 | |
| 2025.02.23 | World Senior Team 2025 S65 | 6.2 | 2025.02.23 Maryasin, Boris (2801892) (2218) | ½ | - | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 | |
| 2025.02.21 | World Senior Team 2025 S65 | 5.3 | 2025.02.21 Meister, Jakob (4102541) (2418) | ½ | - | 1. c4 c6 2. e4 d5 3. exd5 cxd5 | |
| 2025.02.20 | World Senior Team 2025 S65 | 4.3 | 2025.02.20 Ceschia, Ivano (800260) (2205) | ½ | - | 1. d4 Nf6 2. Bg5 Ne4 3. Bf4 d5 | |
| 2025.02.19 | World Senior Team 2025 S65 | 3.3 | 2025.02.19 Wahlbom, Magnus (1700685) (2109) | ½ | - | 1. c4 Nf6 2. g3 g6 3. Bg2 Bg7 | |
| 2025.02.17 | World Senior Team 2025 S65 | 1.6 | 2025.02.17 Soderberg, Per (1702904) (2065) | 1 | - | 1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 | |
| 2024.07.11 | 65-1 | 9.2 | 2024.07.11 Hentunen, Asko (500429) (2207) | 1 | 89.90% | 1. c4 Nf6 2. g3 e6 3. Bg2 d5 | |
| 2024.07.10 | 65-1 | 8.2 | 2024.07.10 Stebbings, Anthony J (402427) (2226) | 1 | 88.60% | 1. c4 c5 2. Nf3 Nf6 3. g3 d5 | |
| 2024.07.09 | 65-1 | 7.6 | 2024.07.09 Messa, Roberto (800457) (2262) | ½ | 97.60% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2024.07.07 | 65-1 | 6.2 | 2024.07.07 Mikhalevski, Alexander (2801728) (2393) | ½ | 97.10% | 1. c4 e6 2. g3 d5 3. Bg2 Nf6 | |
| 2024.07.06 | 65-1 | 5.2 | 2024.07.06 Roos, Daniel (600253) (2311) | ½ | 97.10% | 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6 | |
| 2024.07.05 | 65-1 | 4.2 | 2024.07.05 Plachetka, Jan (14900068) (2289) | 1 | 94.70% | 1. c4 c5 2. g3 Nc6 3. Bg2 g6 | |
| 2024.07.04 | 65-1 | 3.2 | 2024.07.04 Raupp, Thomas (4601610) (2237) | ½ | 83.60% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.07.03 | 65-1 | 2.2 | 2024.07.03 Miltner, Arndt (4602366) (2259) | 1 | 97.50% | 1. Nf3 d6 2. d4 Nf6 3. Nc3 Nbd7 | |
| 2024.07.02 | 65-1 | 1.2 | 2024.07.02 Holst, Per (1405411) (2073) | 1 | 91.10% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2024.05.15 | European Senior Team Chess Championship 2024 - Section 65 + | 9.2 | 2024.05.15 Vujakovic, Branko (14500361) (2232) | ½ | 98.40% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 | |
| 2024.05.14 | European Senior Team Chess Championship 2024 - Section 65 + | 8.1 | 2024.05.14 Hardicsay, Peter (700622) (2175) | 1 | 97.90% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2024.05.13 | European Senior Team Chess Championship 2024 - Section 65 + | 7.2 | 2024.05.13 Binham, Timothy F. (500151) (2283) | ½ | 97.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2024.05.12 | European Senior Team Chess Championship 2024 - Section 65 + | 6.2 | 2024.05.12 Roos, Louis (600288) (2278) | 0 | 85.50% | 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ | |
| 2024.05.11 | European Senior Team Chess Championship 2024 - Section 65 + | 5.2 | 2024.05.11 Mikhalchishin, Adrian (14602385) (2441) | ½ | 95.60% | 1. c4 e5 2. g3 Nf6 3. Bg2 d5 | |
| 2024.05.10 | European Senior Team Chess Championship 2024 - Section 65 + | 4.2 | 2024.05.10 Plachetka, Jan (14900068) (2284) | ½ | 92.30% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2024.05.09 | European Senior Team Chess Championship 2024 - Section 65 + | 3.6 | 2024.05.09 Werner, Clemens (4604636) (2204) | 1 | 96.20% | 1. c4 e5 2. g3 c6 3. Nf3 e4 | |
| 2024.05.08 | European Senior Team Chess Championship 2024 - Section 65 + | 2.2 | 2024.05.08 Glienke, Manfred, Dr. (4603702) (2186) | ½ | 98.20% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2023.07.20 | European Senior Team Chess Championship 2023 65+ | 9.6 | 2023.07.20 Bachmann, Andreas (2189) | ½ | 93.80% | 1. d4 Nf6 2. c4 e6 3. g3 d5 | |
| 2023.07.19 | European Senior Team Chess Championship 2023 65+ | 8.5 | 2023.07.19 Legky, Nikolay A (14100312) (2360) | ½ | 94.20% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2023.07.18 | European Senior Team Chess Championship 2023 65+ | 7.6 | 2023.07.18 Tompa, Janos (700193) (2287) | ½ | 92.00% | 1. Nf3 d5 2. g3 Nf6 3. Bg2 Bg4 | |
| 2023.07.17 | European Senior Team Chess Championship 2023 65+ | 6.6 | 2023.07.17 Werner, Clemens (4604636) (2244) | ½ | 96.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2023.07.15 | European Senior Team Chess Championship 2023 65+ | 4.6 | 2023.07.15 Wahlbom, Magnus (1700685) (2130) | 1 | 98.00% | 1. Nf3 Nf6 2. g3 b6 3. Bg2 Bb7 | |
| 2023.07.14 | European Senior Team Chess Championship 2023 65+ | 3.2 | 2023.07.14 Plachetka, Jan (2284) | ½ | 97.70% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | |
| 2023.07.13 | European Senior Team Chess Championship 2023 65+ | 2.2 | 2023.07.13 Lederman, Leon (2800403) (2213) | ½ | 95.90% | 1. c4 c6 2. e4 d5 3. cxd5 cxd5 | |
| 2023.09.28 | Round 9: Peter Erismann - Anthony C. Kosten | 2023.09.28 Peter Erismann (2037) | 1 | 88.50% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | ||
| 2023.09.27 | Round 8: Heikki M.J. Westerinen - Anthony C. Kosten | 2023.09.27 Heikki M.J. Westerinen (2237) | 1 | 96.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 | ||
| 2023.09.26 | Round 7: Nathan Birnboim - Anthony C. Kosten | 2023.09.26 Nathan Birnboim (2346) | 1 | 92.40% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | ||
| 2023.09.24 | Round 6: Anthony C. Kosten - Louis Roos | 2023.09.24 Louis Roos (2253) | 1 | 95.50% | 1. c4 Nf6 2. g3 e5 3. Bg2 h6 | ||
| 2023.09.23 | Round 5: Johan Goormachtigh - Anthony C. Kosten | 2023.09.23 Johan Goormachtigh (2183) | ½ | 94.90% | 1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ | ||
| 2023.09.22 | Round 4: Anthony C. Kosten - Jakob Meister | 2023.09.22 Jakob Meister (2439) | ½ | 89.30% | 1. c4 e5 2. g3 Nf6 3. Bg2 Nc6 | ||
| 2023.09.21 | Round 3: Jan Plachetka - Anthony C. Kosten | 2023.09.21 Jan Plachetka (2289) | ½ | 92.20% | 1. d4 Nf6 2. Nf3 e6 3. c4 Bb4+ | ||
| 2023.09.20 | Round 2: Anthony C. Kosten - Mahmut Xheladini | 2023.09.20 Mahmut Xheladini (2149) | 1 | 93.10% | 1. c4 e5 2. g3 d5 3. cxd5 Qxd5 |