Player profile
Klas, Friedrich Guenther
Dossier
24 of 25 games analyzed.
Accuracy: 83.3%
Opened e4: 8/12Opened d4: 4/12
Castled kingside: 16Same-side castling: 11Opposite-side castling: 5Did not castle: 4Castled queenside: 3
Played on the kingside: 9Played in the center: 5Played on the queenside: 5Fianchettoed queenside: 1
Kept the bishop pair: 15Sacrificed material: 14Active pieces: 14Missed tactics: 13Backward pawn: 13Initiated exchanges: 13Space advantage: 10Isolated pawn: 9Avoided exchanges: 8Played gambits: 1
Openings
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As White 13 games 5W 3D 5L
Sicilian Defense 3 games 2W 0D 1L
Grand Prix Attack 2 games 1W 0D 1L
(unspecified)
2 games
1W
0D
1L
Closed 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Queen's Pawn Game 3 games 1W 0D 2L
London System 3 games 1W 0D 2L
with e6
2 games
1W
0D
1L
(unspecified)
1 game
0W
0D
1L
Vienna Game 2 games 1W 1D 0L
Vienna Gambit 2 games 1W 1D 0L
(unspecified)
2 games
1W
1D
0L
Vienna Gambit, with Max Lange Defense 2 games 1W 0D 1L
Knight Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
London System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Caro-Kann Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
French Defense 1 game 0W 1D 0L
Queen's Knight 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
As Black 11 games 2W 2D 7L
Caro-Kann Defense 7 games 2W 2D 3L
Advance Variation 2 games 0W 0D 2L
Short Variation
2 games
0W
0D
2L
Two Knights Attack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Exchange Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Karpov Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
von Hennig Gambit 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Maróczy Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Queen's Gambit Declined 2 games 0W 0D 2L
Baltic Defense 2 games 0W 0D 2L
Pseudo-Slav
2 games
0W
0D
2L
Slav Defense 1 game 0W 0D 1L
Modern Line 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Zukertort Opening 1 game 0W 0D 1L
Slav Invitation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 154
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 25 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.07.23 | Amateur Tournament (ATO) | 9.41 | 2026.07.23 Cardinaux, Nikita (1324101) (1625) | 1 | 92.60% | 1. e4 c6 2. Nf3 d5 3. Nc3 e6 | |
| 2026.07.22 | Amateur Tournament (ATO) | 8.36 | 2026.07.22 Benninger,Beat (1336681) (1728) | 0 | 80.70% | 1. e4 c5 2. Nc3 Nc6 3. f4 g6 | |
| 2026.07.21 | Amateur Tournament (ATO) | 7.30 | 2026.07.21 Bellm, Juergen (533007349) (1765) | 0 | 89.50% | 1. d4 c6 2. c4 d5 3. Nf3 Bf5 | |
| 2026.07.21 | Amateur Tournament (ATO) | 6.21 | 2026.07.21 Sushrutha, Reddy (5039100) (1799) | 0 | 85.30% | 1. d4 Nf6 2. Nf3 g6 3. Bf4 Bg7 | |
| 2026.07.18 | Amateur Tournament (ATO) | 5.30 | 2026.07.18 Retti, Marco (1315625) (1774) | 1 | 86.80% | 1. e4 c6 2. d4 d5 3. exd5 Nf6 | |
| 2026.07.17 | Amateur Tournament (ATO) | 4.38 | 2026.07.17 Surdez, Patrick (1380206) (1721) | 1 | 86.90% | 1. d4 d5 2. Nf3 Nf6 3. Bf4 e6 | |
| 2026.07.16 | Amateur Tournament (ATO) | 3.29 | 2026.07.16 Maitre, Fabien (1315471) (1834) | 0 | 85.80% | 1. d4 c6 2. c4 d5 3. Nf3 Bf5 | |
| 2026.07.15 | Amateur Tournament (ATO) | 2.51 | 2026.07.15 Kiechl, Simon (530018617) | 1 | 84.90% | 1. e4 c5 2. Nc3 Nc6 3. f4 g6 | |
| 2026.07.15 | Amateur Tournament (ATO) | 1.23 | 2026.07.15 Ernst, Heinz (1303295) (1848) | 0 | 77.20% | 1. d4 c6 2. c4 d5 3. Nf3 Bg4 | |
| 2025.07.24 | Biel Chess Festival 2025 | 9.41 | 2025.07.24 Gireada, Lucas (1373544) | ½ | - | 1. e4 c6 2. Nc3 d5 3. e5 d4 | |
| 2025.07.23 | Biel Chess Festival 2025 | 8.36 | 2025.07.23 Hottinger, Ieremia (1359185) (1734) | 0 | 87.20% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | |
| 2025.07.22 | Biel Chess Festival 2025 | 7.46 | 2025.07.22 Jakob, Dominic (1346920) (1598) | 1 | 85.20% | 1. e4 e5 2. Nc3 Nf6 3. f4 d6 | |
| 2025.07.21 | Biel Chess Festival 2025 | 6.42 | 2025.07.21 Lachausse, Vincent (1345796) | 0 | 71.30% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2025.07.19 | Biel Chess Festival 2025 | 5.37 | 2025.07.19 Glanc, Lea (1344064) (1735) | ½ | 77.00% | 1. e4 e6 2. Nc3 d5 3. e5 c5 | |
| 2025.07.18 | Biel Chess Festival 2025 | 4.34 | 2025.07.18 Mogasale, Chetan (1356615) (1811) | ½ | 87.50% | 1. e4 c6 2. d4 d5 3. Nc3 dxe4 | |
| 2025.07.17 | Biel Chess Festival 2025 | 3.35 | 2025.07.17 Boyer, Jean-Francois (650226) (1743) | 0 | 87.90% | 1. d4 d5 2. Nf3 Nf6 3. Bf4 c6 | |
| 2025.07.15 | Biel Chess Festival 2025 | 1.18 | 2025.07.15 Leuenberger, Urs (1310585) (1859) | 0 | 78.80% | 1. d4 Nf6 2. Nf3 e6 3. Bf4 d5 | |
| 2024.07.24 | Biel Chess Festival 2024 - Amateur tournament | 8.51 | 2024.07.24 Meier, Herbert (1301632) (1678) | ½ | 92.00% | 1. e4 e5 2. Nc3 Nf6 3. f4 d6 | |
| 2024.07.23 | Biel Chess Festival 2024 | 7.45 | 2024.07.23 Kim, Danha (13216430) (1491) | 0 | 80.20% | 1. e4 c6 2. d4 d5 3. e5 Bf5 | |
| 2024.07.22 | Biel Chess Festival 2024 - Amateur tournament | 6.51 | 2024.07.22 Hottinger, Ieremia (1359185) (1523) | 1 | 86.80% | 1. e4 c5 2. Nc3 e6 3. f4 d6 | |
| 2024.07.20 | Biel Chess Festival 2024 - Amateur tournament | 5.46 | 2024.07.20 Shin, Yisoo (13221442) (1449) | ½ | 82.80% | 1. e4 c6 2. d4 d5 3. f3 Nf6 | |
| 2024.07.19 | Biel Chess Festival 2024 - Amateur tournament | 4.43 | 2024.07.19 Materia, Mario (651082241) (1590) | 0 | 86.60% | 1. e4 e5 2. Nc3 Nc6 3. f4 exf4 | |
| 2024.07.17 | Biel Chess Festival 2024 | 2.23 | 2024.07.17 Kuenzi, Anton (1320718) (1862) | 0 | 59.40% | 1. Nf3 c6 2. b3 d5 3. Bb2 Bf5 | |
| 2024.07.16 | Biel Chess Festival 2024 - Amateur tournament | 1.63 | 2024.07.16 Riollet, Sebastien (1364502) | 1 | 83.10% | 1. e4 e5 2. Nc3 Nc6 3. f4 d6 | |
| 2022.07.25 | Biel Chess Festival 2024 | 9.48 | 2022.07.25 Settegrana, Miro (1352466) (1532) | 0 | 71.80% | 1. e4 c6 2. d4 d5 3. e5 Bf5 |