Player profile
Yertai, Osman
Dossier
18 of 19 games analyzed.
Accuracy: 82.6%
Opened e4: 9/9
Castled kingside: 15Same-side castling: 13Did not castle: 2Opposite-side castling: 2Castled queenside: 1
Played in the center: 9Played on the kingside: 4Played on the queenside: 3Fianchettoed kingside: 3Fianchettoed queenside: 2
Initiated exchanges: 12Active pieces: 11Sacrificed material: 10Kept the bishop pair: 9Backward pawn: 9Space advantage: 8Isolated pawn: 6Played gambits: 4Missed tactics: 4Avoided exchanges: 2
Openings
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As White 10 games 7W 0D 3L
Sicilian Defense 4 games 2W 0D 2L
Four Knights Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Accelerated Dragon 1 game 1W 0D 0L
Modern Bc4 Variation
1 game
1W
0D
0L
Najdorf Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Kan Variation 1 game 1W 0D 0L
Modern Variation
1 game
1W
0D
0L
French Defense 3 games 2W 0D 1L
Advance Variation 3 games 2W 0D 1L
Main Line
1 game
1W
0D
0L
Wade Variation
1 game
1W
0D
0L
Paulsen Attack
1 game
0W
0D
1L
Caro-Kann Defense 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
Seirawan Variation
1 game
1W
0D
0L
Petrov's Defense 1 game 1W 0D 0L
Damiano Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Italian Game 1 game 1W 0D 0L
Scotch Gambit 1 game 1W 0D 0L
Anderssen Attack
1 game
1W
0D
0L
As Black 9 games 1W 2D 6L
Sicilian Defense 3 games 0W 0D 3L
Mengarini Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
French Variation 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
Queen's Gambit Declined 2 games 0W 1D 1L
Exchange Variation 1 game 0W 1D 0L
Positional Variation
1 game
0W
1D
0L
Harrwitz Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Italian Game 2 games 0W 1D 1L
Giuoco Pianissimo 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Two Knights Defense 1 game 0W 0D 1L
Max Lange Attack
1 game
0W
0D
1L
English Opening 1 game 0W 0D 1L
Anglo-Indian Defense 1 game 0W 0D 1L
Queen's Knight Variation
1 game
0W
0D
1L
King's Indian Defense 1 game 1W 0D 0L
Petrosian Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Blunders Top 4 of 129
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 19 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.01.30 | Round 7: Yertai, Osman - Derbisov, Daler | 7.6 | 2026.01.30 Derbisov, Daler (447041021) | 0 | 85.00% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2026.01.30 | Round 6: Yertai, Osman - Askaruly, Aidar | 6.8 | 2026.01.30 Askaruly, Aidar (447099984) (1509) | 1 | 75.40% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2026.01.30 | Round 5: Endibayev, Aslan - Yertai, Osman | 5.4 | 2026.01.30 Endibayev, Aslan (447070200) (1534) | 0 | 55.40% | 1. c4 Nf6 2. Nc3 g6 3. e4 e5 | |
| 2026.01.30 | Round 4: Yertai, Osman - Bauyrzhan, Alinur | 4.7 | 2026.01.30 Bauyrzhan, Alinur (447086491) (1402) | 1 | 81.40% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2026.01.29 | Round 9: Alan Gaziz - Yertai, Osman | 9.6 | 2026.01.29 Gaziz, Alan (557000310) | 1 | 79.40% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.01.29 | Round 8: Yertai, Osman - Amirov, Zakariya | 8.10 | 2026.01.29 Amirov, Zakariya (447056576) (1428) | 1 | - | 1. e4 c6 2. d4 d5 3. Nd2 dxe4 | |
| 2026.01.29 | Round 6: Bakytbek, Akhmet - Yertai, Osman | 6.9 | 2026.01.29 Bakytbek, Akhmet (557009368) (1597) | 0 | 85.60% | 1. e4 c5 2. a3 e6 3. b4 d6 | |
| 2026.01.29 | Round 5: Yertai, Osman - Sabitkhan, Batyr | 5.3 | 2026.01.29 Sabitkhan, Batyr (447075155) (1485) | 0 | 82.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.01.28 | Round 4: Yertai, Osman - Armanuly, Aivar | 4.5 | 2026.01.28 Armanuly, Aivar (447080639) (1459) | 1 | 86.80% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2026.01.28 | Round 3: Derbisov, Daler - Yertai, Osman | 3.7 | 2026.01.28 Derbisov, Daler (447041021) (1491) | ½ | 87.50% | 1. d4 Nf6 2. c4 e6 3. Nc3 d5 | |
| 2026.01.27 | Round 9: Yertai, Osman - Mashrapov, Assylzhan | 9.9 | 2026.01.27 Mashrapov, Assylzhan (447037733) (1613) | 1 | 98.50% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2026.01.23 | Round 5: Altairuly, Arulan - Yertai, Osman | 5.9 | 2026.01.23 Altairuly, Arulan (447078413) (1421) | 0 | 67.70% | 1. e4 c5 2. Nf3 e6 3. Be2 a6 | |
| 2025.10.31 | Round 7: Yertai, Osman - Berzhan, Temirlan | 7.3 | 2025.10.31 Berzhan, Temirlan (447052406) (1464) | 0 | 85.40% | 1. e4 e6 2. d4 d5 3. e5 c5 | |
| 2025.10.26 | Round 2: Bakytbek, Akhmet - Yertai, Osman | 2.3 | 2025.10.26 Bakytbek, Akhmet (557009368) | 0 | 90.00% | 1. e4 c5 2. c3 d5 3. exd5 Qxd5 | |
| 2025.10.25 | Round 1: Yertai, Osman - Elteres Kurmangazy | 1.3 | 2025.10.25 Elteres Kurmangazy | 1 | 99.40% | 1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 | |
| 2025.01.22 | Round 9: Bakhytzhan, Abilmansur - Yertai, Osman | 9.7 | 2025.01.22 Bakhytzhan, Abilmansur (447029153) (1437) | 0 | 88.40% | 1. d4 Nf6 2. c4 e6 3. Nf3 d5 | |
| 2025.01.21 | Round 8: Yertai, Osman - Endibayev, Aslan | 8.7 | 2025.01.21 Endibayev, Aslan (447070200) (1608) | 1 | 74.80% | 1. e4 e5 2. Nf3 Nc6 3. d4 exd4 | |
| 2025.01.20 | Round 7: Rysbaiuly, Abilkhaiyr - Yertai, Osman | 7.8 | 2025.01.20 Rysbaiuly, Abilkhaiyr (447040092) (1449) | ½ | 84.60% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 | |
| 2025.01.18 | Round 5: Armanuly, Abdullah - Yertai, Osman | 5.8 | 2025.01.18 Armanuly, Abdullah (447027045) (1437) | 0 | 78.10% | 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 |