Player profile
Bonn, Thomas
Dossier
53 of 54 games analyzed.
Accuracy: 87.6%
Opened e4: 18/18
Castled kingside: 22Same-side castling: 20Did not castle: 8Castled queenside: 5Opposite-side castling: 3
Played on the kingside: 14Fianchettoed kingside: 13Played in the center: 13Played on the queenside: 6Fianchettoed queenside: 4
Active pieces: 25Initiated exchanges: 25Space advantage: 23Isolated pawn: 20Backward pawn: 20Missed tactics: 18Sacrificed material: 16Kept the bishop pair: 16Avoided exchanges: 8Played gambits: 6
Openings
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As White 18 games 10W 1D 7L
Sicilian Defense 7 games 3W 1D 3L
Najdorf Variation 3 games 2W 1D 0L
(unspecified)
3 games
2W
1D
0L
French Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Four Knights Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Dragon Variation 1 game 0W 0D 1L
Yugoslav Attack, Czerniak Variation
1 game
0W
0D
1L
O'Kelly Variation 1 game 0W 0D 1L
Venice System
1 game
0W
0D
1L
Caro-Kann Defense 6 games 4W 0D 2L
Advance Variation 4 games 2W 0D 2L
Short Variation
3 games
1W
0D
2L
Botvinnik-Carls Defense
1 game
1W
0D
0L
Endgame Offer 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Accelerated Panov Attack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Ruy Lopez 2 games 0W 0D 2L
Morphy Defense 1 game 0W 0D 1L
Modern Steinitz Defense
1 game
0W
0D
1L
Closed 1 game 0W 0D 1L
Anti-Marshall
1 game
0W
0D
1L
French Defense 2 games 2W 0D 0L
Steinitz Variation 2 games 2W 0D 0L
Boleslavsky Variation
2 games
2W
0D
0L
Alekhine Defense 1 game 1W 0D 0L
Sämisch Attack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
As Black 18 games 8W 1D 9L
Sicilian Defense 11 games 4W 1D 6L
Najdorf Variation 3 games 1W 1D 1L
(unspecified)
2 games
0W
1D
1L
Browne Variation
1 game
1W
0D
0L
Closed 2 games 1W 0D 1L
Traditional
2 games
1W
0D
1L
Smith-Morra Gambit 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Dragon Variation 1 game 1W 0D 0L
Classical Variation, Normal Line
1 game
1W
0D
0L
Accelerated Dragon 1 game 0W 0D 1L
Modern Bc4 Variation
1 game
0W
0D
1L
Nyezhmetdinov-Rossolimo Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Alapin Variation 1 game 0W 0D 1L
Barmen Defense
1 game
0W
0D
1L
Mengarini Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's Indian Defense 2 games 0W 0D 2L
Semi-Averbakh System 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Fianchetto Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Rapport-Jobava System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 1 game 1W 0D 0L
Veresov 1 game 1W 0D 0L
Richter Attack
1 game
1W
0D
0L
Grünfeld Defense 1 game 0W 0D 1L
Three Knights Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
London System, with Be2 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Zukertort Opening 1 game 1W 0D 0L
Quiet System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Blunders Top 4 of 252
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 54 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.09.19 | Chess on the Thames | 5.6 | 2026.09.19 Rowson, David (443760) (1911) | 0 | 89.90% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.09.19 | Chess on the Thames | 4.2 | 2026.09.19 Kapechun, Mikhailo (34147527) (2193) | 0 | 89.50% | 1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 | |
| 2026.09.19 | Chess on the Thames | 3.4 | 2026.09.19 Maugenest, Matthieu (36065544) (2014) | 1 | 95.40% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2026.09.19 | Chess on the Thames | 2.6 | 2026.09.19 Gormley, Cathan (2514834) (1796) | 1 | 96.60% | 1. d4 Nf6 2. Nc3 d5 3. Bf4 a6 | |
| 2026.09.19 | Chess on the Thames | 1.6 | 2026.09.19 Nash, Cofi (343405398) (1734) | 1 | 77.80% | 1. e4 c6 2. Nf3 d5 3. d3 Bg4 | |
| 2026.07.05 | 30e Festival International Jean-Claude Loubatière | 1.9 | 2026.07.05 Mattenberger, Matthias (1339958) (2347) | 0 | 90.50% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2025.12.07 | Round 10: McPhillips, Joseph - Bonn, Thomas | 10.27 | 2025.12.07 McPhillips, Joseph (422487) (2288) | 1 | - | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2025.12.07 | Round 9: Bonn, Thomas - Cann, Arthur | 9.9 | 2025.12.07 Cann, Arthur (343419550) (1685) | 1 | 95.40% | 1. e4 c6 2. d4 d5 3. e5 c5 | |
| 2025.12.07 | Round 8: Cancedda-Dupuis, Livio - Bonn, Thomas | 8.26 | 2025.12.07 Cancedda-Dupuis, Livio (499447) (2319) | 0 | 69.50% | 1. e4 c5 2. Nc3 Nc6 3. Nge2 g6 | |
| 2025.12.07 | Round 7: Bonn, Thomas - Jumabayev, Rinat | 7.21 | 2025.12.07 Jumabayev, Rinat (13702661) (2543) | 1 | 90.40% | 1. e4 c5 2. Nf3 e6 3. g3 Nc6 | |
| 2025.12.07 | Round 6: McCarthy, Kevin C - Bonn, Thomas | 6.14 | 2025.12.07 McCarthy, Kevin C (470775) (1908) | 1 | 94.80% | 1. d4 Nf6 2. Nc3 d5 3. f3 c5 | |
| 2025.12.06 | Round 5: Bonn, Thomas - Tulchynskyi, Feliks | 5.23 | 2025.12.06 Tulchynskyi, Feliks (34127895) (2409) | 0 | 90.80% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2025.12.06 | Round 4: Jain, Gautam - Bonn, Thomas | 4.21 | 2025.12.06 Jain, Gautam (425311) (1923) | 1 | 89.30% | 1. e4 c5 2. Nc3 Nc6 3. a4 e6 | |
| 2025.12.06 | Round 3: Bonn, Thomas - Sandhu, Jai | 3.17 | 2025.12.06 Sandhu, Jai (343439330) | 1 | 86.70% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2025.12.06 | Round 2: Udovenko, Daniel - Bonn, Thomas | 2.31 | 2025.12.06 Udovenko, Daniel (30957508) (1765) | 0 | 82.80% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 | |
| 2025.09.20 | 2025 UK Open Blitz Qualifier: London 3 (Golders Green) | 14.9 | 2025.09.20 Lucchi, Lorenzo (821160) (2189) | 0 | 84.70% | 1. e4 c5 2. c3 d5 3. exd5 Qxd5 | |
| 2025.09.20 | 2025 UK Open Blitz Qualifier: London 3 (Golders Green) | 10.8 | 2025.09.20 Czopor, Maciej (21805431) (2404) | 0 | 87.40% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2025.09.20 | 2025 UK Open Blitz Qualifier: London 3 (Golders Green) | 8.10 | 2025.09.20 Richardson, John R (401617) (2165) | 0 | 69.80% | 1. d4 Nf6 2. c4 g6 3. Nf3 Bg7 | |
| 2025.09.20 | 2025 UK Open Blitz Qualifier: London 3 (Golders Green) | 5.5 | 2025.09.20 Speelman, Jon S (400033) (2492) | 0 | 84.80% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2025.09.20 | 2025 UK Open Blitz Qualifier: London 3 (Golders Green) | 4.4 | 2025.09.20 Badacsonyi, Stanley (486973) (2389) | 0 | 89.90% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | |
| 2025.09.20 | 2025 UK Open Blitz Qualifier: London 3 (Golders Green) | 3.8 | 2025.09.20 Roberson, Peter T (412384) (2321) | 1 | 97.30% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2024.09.03 | Round 14: Bonn, Thomas - Bijeljic, Branko | 14.7 | 2024.09.03 Bijeljic, Branko (343413250) (2003) | 1 | 86.60% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.09.03 | Round 13: Bijeljic, Branko - Bonn, Thomas | 13.7 | 2024.09.03 Bijeljic, Branko (343413250) (2003) | 1 | 90.50% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.09.03 | Round 12: Pollack, Oscar - Bonn, Thomas | 12.4 | 2024.09.03 Pollack, Oscar (429414) (2002) | 0 | 84.20% | 1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4 | |
| 2024.09.03 | Round 11: Bonn, Thomas - Pollack, Oscar | 11.4 | 2024.09.03 Pollack, Oscar (429414) (2002) | 0 | 86.30% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.09.03 | Round 10: Bonn, Thomas - Stojanas, Justinas | 10.4 | 2024.09.03 Stojanas, Justinas (12802328) (1983) | ½ | 80.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.09.03 | Round 9: Stojanas, Justinas - Bonn, Thomas | 9.4 | 2024.09.03 Stojanas, Justinas (12802328) (1983) | ½ | 79.30% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.09.03 | Round 6: Leslie-Smith, Lance - Bonn, Thomas | 6.4 | 2024.09.03 Leslie-Smith, Lance (14326906) (1799) | 1 | 92.50% | 1. Nf3 Nf6 2. d4 g6 3. Bf4 Bg7 | |
| 2024.09.03 | Round 5: Bonn, Thomas - Leslie-Smith, Lance | 5.4 | 2024.09.03 Leslie-Smith, Lance (14326906) (1799) | 1 | 98.00% | 1. e4 c6 2. c4 d5 3. exd5 cxd5 | |
| 2024.09.03 | Round 4: Bonn, Thomas - Keohane, Ben | 4.7 | 2024.09.03 Keohane, Ben (433950) (1944) | 1 | 83.10% | 1. e4 Nf6 2. e5 Nd5 3. Nc3 e6 | |
| 2024.09.03 | Round 3: Keohane, Ben - Bonn, Thomas | 3.7 | 2024.09.03 Keohane, Ben (433950) (1944) | 1 | 90.50% | 1. e4 c5 2. a3 b6 3. Nc3 Bb7 | |
| 2024.09.03 | Round 2: Bonn, Thomas - Grose, Kameron | 2.8 | 2024.09.03 Grose, Kameron (474010) (1776) | 1 | 95.00% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.09.03 | Round 1: Grose, Kameron - Bonn, Thomas | 1.8 | 2024.09.03 Grose, Kameron (474010) (1776) | 0 | 81.10% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2024.08.30 | Round 8: Cancedda-Dupuis, Livio - Bonn, Thomas | 8.1 | 2024.08.30 Cancedda-Dupuis, Livio (499447) (2193) | 1 | 88.90% | 1. Nf3 Nf6 2. e3 g6 3. c4 Bg7 | |
| 2024.08.30 | Round 7: Bonn, Thomas - Cancedda-Dupuis, Livio | 7.1 | 2024.08.30 Cancedda-Dupuis, Livio (499447) (2193) | 0 | 87.50% | 1. e4 c5 2. Nf3 a6 3. c3 e6 | |
| 2024.08.04 | Round 9: Bonn, Thomas - Bournel, Antoine | 9.2 | 2024.08.04 Bournel, Antoine (26093553) (2368) | 0 | 88.20% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2023.02.19 | Cambridge International Open | 9.11 | 2023.02.19 Roberson, Peter T (412384) (2426) | ½ | 84.80% | 1. e4 c5 2. Nc3 a6 3. g3 b5 | |
| 2023.02.18 | Cambridge International Open | 8.16 | 2023.02.18 Hobson, Kenneth (480819) (2051) | ½ | 95.90% | 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 | |
| 2023.02.18 | Cambridge International Open | 7.17 | 2023.02.18 Murawski, Jan (1708) | 1 | 89.60% | 1. d4 Nf6 2. Nf3 e6 3. c4 d5 | |
| 2023.02.17 | Cambridge International Open | 6.18 | 2023.02.17 Golubovic, Erik (14586908) (1887) | ½ | 76.80% | 1. e4 c5 2. c3 d5 3. exd5 Qxd5 | |
| 2023.02.17 | Cambridge International Open | 5.8 | 2023.02.17 Arkell, Keith C (400270) (2404) | 0 | 87.00% | 1. d4 e6 2. c4 Bb4+ 3. Bd2 Bxd2+ | |
| 2023.02.16 | Cambridge International Open | 4.18 | 2023.02.16 Brocklehurst, Andrew (424765) (1816) | 1 | 97.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2023.02.16 | Cambridge International Open | 3.17 | 2023.02.16 Gardiner, Eric D (435880) (1883) | ½ | 93.90% | 1. d4 d5 2. Nf3 Nf6 3. c4 e6 | |
| 2023.02.15 | Cambridge International Open | 2.22 | 2023.02.15 Kemp, Paul R (415251) (1984) | ½ | 92.50% | 1. e4 c5 2. c3 d5 3. exd5 Qxd5 | |
| 2023.02.15 | Cambridge International Open | 1.24 | 2023.02.15 Catabay, Mae C (1525) | 1 | 93.60% | 1. d4 Nf6 2. Nf3 d5 3. c4 e6 | |
| Round 9: Mokhber-Garcia, Sebastian - Bonn, Thomas | 9.8 | Mokhber-Garcia, Sebastian (499269) (1963) | ½ | 97.30% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | ||
| Round 8: Bonn, Thomas - Bharat Kumar, Balahari | 8.5 | Bharat Kumar, Balahari (496464) (2052) | 0 | 78.90% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| Round 7: Bonn, Thomas - Bansal, Saahil | 7.24 | Bansal, Saahil (438316) (1979) | 0 | 82.00% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | ||
| Round 6: Ravi Krishna G - Bonn, Thomas | 6.22 | Ravi Krishna G (25707817) (2074) | ½ | 92.40% | 1. d4 Nf6 2. c4 g6 3. Nc3 d5 | ||
| Round 5: Bonn, Thomas - Kapechun, Mikhailo | 5.1 | Kapechun, Mikhailo (34147527) (1985) | ½ | 92.00% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | ||
| Round 4: Deepak Ambattu, Rithvik - Bonn, Thomas | 4.25 | Deepak Ambattu, Rithvik (2410060) (1990) | ½ | 98.00% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | ||
| Round 3: Bonn, Thomas - Golub, Nikolina | 3.4 | Golub, Nikolina (14539055) (1933) | 1 | 90.30% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | ||
| Round 2: Udovenko, Daniel - Bonn, Thomas | 2.5 | Udovenko, Daniel (30957508) (1870) | ½ | 88.60% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 | ||
| Round 1: Bonn, Thomas - Pal, Rohan | 1.6 | Pal, Rohan (462489) (1909) | 0 | 92.20% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 |