Player profile
Mostyn, Gregory
Dossier
19 of 22 games analyzed.
Accuracy: 83.7%
Opened e4: 9/10Opened a3: 1/10
Castled kingside: 17Same-side castling: 14Did not castle: 2Opposite-side castling: 2
Played in the center: 6Fianchettoed kingside: 5Played on the kingside: 5Played on the queenside: 4Fianchettoed queenside: 2
Active pieces: 16Sacrificed material: 12Space advantage: 11Kept the bishop pair: 10Initiated exchanges: 10Backward pawn: 10Missed tactics: 8Isolated pawn: 7Avoided exchanges: 3Played gambits: 1
Openings
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As White 11 games 5W 1D 5L
Ruy Lopez 4 games 3W 0D 1L
Berlin Defense 2 games 2W 0D 0L
Rio Gambit Accepted
1 game
1W
0D
0L
Improved Steinitz Defense
1 game
1W
0D
0L
Morphy Defense 1 game 1W 0D 0L
Neo-Arkhangelsk Variation
1 game
1W
0D
0L
Cozio Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Scandinavian Defense 2 games 1W 0D 1L
Valencian Variation 1 game 1W 0D 0L
Ilundain Variation
1 game
1W
0D
0L
Gubinsky-Melts Defense 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Sicilian Defense 2 games 1W 0D 1L
Accelerated Dragon 1 game 0W 0D 1L
Modern Variation
1 game
0W
0D
1L
Taimanov Variation 1 game 1W 0D 0L
Bastrikov Variation
1 game
1W
0D
0L
French Defense 1 game 0W 1D 0L
Classical Variation 1 game 0W 1D 0L
Delayed Exchange Variation
1 game
0W
1D
0L
Pirc Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Anderssen's Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
As Black 11 games 4W 0D 7L
Sicilian Defense 7 games 2W 0D 5L
Modern Variations 2 games 0W 0D 2L
(unspecified)
2 games
0W
0D
2L
Dragon Variation 1 game 1W 0D 0L
Yugoslav Attack, Modern Line
1 game
1W
0D
0L
Smith-Morra Gambit 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
(unspecified) 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Alapin Variation 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Lasker-Dunne Attack 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Polish Opening 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Tarrasch Defense 1 game 0W 0D 1L
Prague Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Queen's Pawn Game 1 game 1W 0D 0L
London System 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
King's Indian Defense 1 game 0W 0D 1L
Makogonov Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
Blunders Top 4 of 141
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 22 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2026.08.23 | Round 11: Mostyn, Gregory - Heidenfeld, Mark | 11.22 | 2026.08.23 Heidenfeld, Mark (2500990) (2298) | ½ | 84.10% | 1. e4 e6 2. d4 d5 3. Nc3 Nf6 | |
| 2026.08.23 | Round 10: Kim, Minjun D - Mostyn, Gregory | 10.32 | 2026.08.23 Kim, Minjun D (13212885) (1623) | 1 | 90.70% | 1. e4 c5 2. Nf3 d6 3. d4 cxd4 | |
| 2026.08.23 | Round 9: Mostyn, Gregory - Kouchak, Jason | 9.35 | 2026.08.23 Kouchak, Jason (26011379) (1842) | 1 | 80.90% | 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 | |
| 2026.08.23 | Round 8: Deshmukh, Amod - Mostyn, Gregory | 8.35 | 2026.08.23 Deshmukh, Amod (430781) (1803) | 0 | 86.90% | 1. e4 c5 2. Nf3 d6 3. Be2 Nc6 | |
| 2026.08.23 | Round 7: Mostyn, Gregory - Iqbal, Zafar | 7.27 | 2026.08.23 Iqbal, Zafar (440264) (1937) | 0 | 75.20% | 1. e4 d6 2. d4 Nf6 3. Nc3 g6 | |
| 2026.08.23 | Round 6: Roberts, Tallulah - Mostyn, Gregory | 6.4 | 2026.08.23 Roberts, Tallulah (15600572) (1674) | 1 | 83.30% | 1. b4 e5 2. Bb2 Nc6 3. b5 Nd4 | |
| 2026.08.23 | Round 5: Mostyn, Gregory - Amoako Philip Selikem Yao | 5.22 | 2026.08.23 Amoako Philip Selikem Yao (12602256) (2014) | 0 | 83.60% | 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 | |
| 2026.08.23 | Round 4: Mostyn, Gregory - Kang, Yejun A | 4.33 | 2026.08.23 Kang, Yejun A (13232177) (1623) | 1 | 90.40% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 | |
| 2026.08.23 | Round 3: Zhao, George - Mostyn, Gregory | 3.22 | 2026.08.23 Zhao, George (494607) (2098) | 0 | 84.00% | 1. Nf3 d5 2. d4 c5 3. c4 e6 | |
| 2026.08.23 | Round 2: Mostyn, Gregory - Basty, Nicolas | 2.36 | 2026.08.23 Basty, Nicolas (343463649) (1540) | 1 | 86.50% | 1. e4 c5 2. Nf3 e6 3. d4 cxd4 | |
| 2026.08.23 | Round 1: Haydon, David L - Mostyn, Gregory | 1.5 | 2026.08.23 Haydon, David L (415405) (2336) | 0 | 82.30% | 1. e4 c5 2. Nf3 d6 3. Bc4 Nc6 | |
| 2026.08.22 | Round 11: Hng, Mei-En Emmanuelle - Mostyn, Gregory | 11.40 | 2026.08.22 Hng, Mei-En Emmanuelle (5804566) (2045) | 0 | 79.30% | 1. e4 c5 2. d4 cxd4 3. c3 d6 | |
| 2026.08.22 | Round 10: Mostyn, Gregory - Kuhendiran, Tharshan | 10.35 | 2026.08.22 Kuhendiran, Tharshan (423777) (1984) | 0 | 82.60% | 1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 | |
| 2026.08.22 | Round 9: Bussmann, John - Mostyn, Gregory | 9.45 | 2026.08.22 Bussmann, John (460303) (1803) | 1 | - | 1. d4 Nf6 2. Nf3 d5 3. Bf4 c5 | |
| 2026.08.22 | Round 8: Mostyn, Gregory - Stravens, Robert A. | 8.56 | 2026.08.22 Stravens, Robert A. (9800433) | 1 | 84.30% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | |
| 2026.08.22 | Round 7: Salvi, Amit - Mostyn, Gregory | 7.48 | 2026.08.22 Salvi, Amit (366130147) (1840) | 0 | - | 1. e4 c5 2. d3 Nc6 3. Nc3 Nf6 | |
| 2026.08.22 | Round 6: Mostyn, Gregory - Aggarwal, Kian | 6.58 | 2026.08.22 Aggarwal, Kian (343455832) (1551) | 1 | 77.20% | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 | |
| 2026.08.22 | Round 5: Pires, Jonathan - Mostyn, Gregory | 5.47 | 2026.08.22 Pires, Jonathan (343409644) (1856) | 0 | 78.50% | 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 | |
| 2026.08.22 | Round 4: Mostyn, Gregory - Patel, Zain | 4.35 | 2026.08.22 Patel, Zain (469246) (2105) | 0 | - | 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 | |
| 2026.08.22 | Round 3: Pegasov, Pavel - Mostyn, Gregory | 3.55 | 2026.08.22 Pegasov, Pavel (34286381) (1571) | 1 | 80.40% | 1. e4 c5 2. c3 Nc6 3. d4 cxd4 | |
| 2026.08.22 | Round 1: Pein, Jonathan - Mostyn, Gregory | 1.33 | 2026.08.22 Pein, Jonathan (417092) (2169) | 0 | 87.20% | 1. e4 c5 2. g3 Nc6 3. Bg2 d6 | |
| 2026.08.22 | Round 1: Mostyn, Gregory - Hunt, Harriet V | 1.28 | 2026.08.22 Hunt, Harriet V (403512) (2283) | 0 | 92.70% |