Player profile
Gueldenapfel, Thomas
Dossier
20 of 20 games analyzed.
Accuracy: 77.4%
Opened e4: 5/11Opened d4: 5/11Opened c4: 1/11
Castled kingside: 17Same-side castling: 17Castled queenside: 2Opposite-side castling: 2Did not castle: 1
Played on the kingside: 7Played in the center: 7Played on the queenside: 3Fianchettoed queenside: 2Fianchettoed kingside: 2
Space advantage: 14Isolated pawn: 11Avoided exchanges: 10Backward pawn: 9Sacrificed material: 9Missed tactics: 9Initiated exchanges: 7Active pieces: 7Kept the bishop pair: 7Played gambits: 3
Openings
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As White 11 games 2W 0D 9L
Pirc Defense 2 games 0W 0D 2L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Classical Variation 1 game 0W 0D 1L
Quiet System
1 game
0W
0D
1L
Center Game 2 games 2W 0D 0L
Berger Variation 2 games 2W 0D 0L
(unspecified)
2 games
2W
0D
0L
Sicilian Defense 1 game 0W 0D 1L
Löwenthal Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Pawn Game 1 game 0W 0D 1L
Zukertort Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
French Defense 1 game 0W 0D 1L
Rubinstein Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
English Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Gambit Declined 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Semi-Slav Defense 1 game 0W 0D 1L
Chigorin Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Nimzo-Indian Defense 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
As Black 9 games 0W 1D 8L
Ruy Lopez 2 games 0W 0D 2L
Closed 1 game 0W 0D 1L
Averbakh Variation
1 game
0W
0D
1L
Steinitz Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Philidor Defense 2 games 0W 1D 1L
(unspecified) 2 games 0W 1D 1L
(unspecified)
2 games
0W
1D
1L
Bishop's Opening 2 games 0W 0D 2L
Vienna Hybrid 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
English Opening 1 game 0W 0D 1L
Symmetrical Variation 1 game 0W 0D 1L
Four Knights Variation
1 game
0W
0D
1L
King's Pawn Game 1 game 0W 0D 1L
Leonardis Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Gambit Declined 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 140
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 20 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.07.23 | Amateur Tournament (ATO) | 9.51 | 2026.07.23 Valembois, Pierre (234559) | 0 | 59.10% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.07.22 | Amateur Tournament (ATO) | 8.52 | 2026.07.22 Harte, Bernd (1356399) (1620) | 0 | 71.90% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2026.07.21 | Amateur Tournament (ATO) | 7.50 | 2026.07.21 Morgan, Jesus Alberto (1339575) (1461) | 0 | 85.80% | 1. d4 d6 2. e4 g6 3. Nf3 Bg7 | |
| 2026.07.21 | Amateur Tournament (ATO) | 6.50 | 2026.07.21 Huber, Ruth (1315234) (1561) | 0 | 83.60% | 1. Nf3 Nf6 2. c4 c5 3. Nc3 Nc6 | |
| 2026.07.17 | Amateur Tournament (ATO) | 4.52 | 2026.07.17 Lachausse, Vincent (1345796) (1573) | 0 | 71.80% | 1. e4 e5 2. d3 Nc6 3. Nf3 Nf6 | |
| 2026.07.16 | Amateur Tournament (ATO) | 3.51 | 2026.07.16 Hajduk, Mariia (1368559) (1629) | 0 | 76.50% | 1. d4 d5 2. Nf3 Bf5 3. e3 e6 | |
| 2026.07.15 | Amateur Tournament (ATO) | 2.42 | 2026.07.15 Gotti, Nicola (1301039) (1717) | 0 | 86.00% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 | |
| 2026.07.15 | Amateur Tournament (ATO) | 1.44 | 2026.07.15 Rohde, Bernhard (1323016) (1772) | 0 | 78.60% | 1. e4 e6 2. d4 d5 3. Nc3 dxe4 | |
| 2025.07.21 | Biel Chess Festival 2025 | 6.46 | 2025.07.21 Luedi, Paul (1319930) (1716) | 0 | 82.30% | 1. c4 b6 2. d3 Bb7 3. e4 c5 | |
| 2025.07.16 | Biel Chess Festival 2025 | 2.46 | 2025.07.16 Trzcinska, Weronika (41862155) (1712) | 0 | 75.20% | 1. e4 e5 2. Nf3 d6 3. Nc3 Be6 | |
| 2025.07.15 | Biel Chess Festival 2025 | 1.42 | 2025.07.15 Avilova, Yulia (34166073) (1762) | 0 | 85.20% | 1. d4 d5 2. c4 e6 3. e3 Nf6 | |
| 2024.07.25 | Biel Chess Festival 2024 - Amateur tournament | 9.61 | 2024.07.25 Seo, Sarang (13224611) | 1 | 64.60% | 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 | |
| 2024.07.24 | Biel Chess Festival 2024 - Amateur tournament | 8.58 | 2024.07.24 Lee, Hyunchae (13226460) | 0 | 71.90% | 1. d4 d5 2. c4 e6 3. Nc3 Nf6 | |
| 2024.07.23 | Biel Chess Festival 2024 - Amateur tournament | 7.58 | 2024.07.23 Huber, Ruth (1315234) (1612) | 0 | 80.90% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2024.07.22 | Biel Chess Festival 2024 - Amateur tournament | 6.57 | 2024.07.22 Chung, Inho (13226592) | ½ | 79.70% | 1. e4 e5 2. Nf3 d6 3. Bc4 h6 | |
| 2024.07.20 | Biel Chess Festival 2024 - Amateur tournament | 5.47 | 2024.07.20 Trachsel, Peter (1303058) (1782) | 0 | 84.40% | 1. d4 d5 2. c4 c6 3. e3 Nf6 | |
| 2024.07.19 | Biel Chess Festival 2024 - Amateur tournament | 4.61 | 2024.07.19 Lachausse, Vincent (1345796) | 1 | 78.80% | 1. e4 e5 2. d4 exd4 3. Qxd4 Nc6 | |
| 2024.07.18 | Biel Chess Festival 2024 - Amateur tournament | 3.54 | 2024.07.18 Weihs, David (1681311) (1733) | 0 | 75.30% | 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 | |
| 2024.07.17 | Biel Chess Festival 2024 - Amateur tournament | 2.51 | 2024.07.17 Bachmann, Daniel (1357492) (1713) | 0 | 85.20% | 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 | |
| 2024.07.16 | Biel Chess Festival 2024 - Amateur tournament | 1.42 | 2024.07.16 Cardoso Rodrigues, Michael (1352695) (1796) | 0 | 70.60% | 1. e4 e5 2. Nc3 Nc6 3. Bc4 Nf6 |