Player profile
Collier, David O
Dossier
11 of 11 games analyzed.
Accuracy: 92.7%
Opened d4: 3/6Opened e3: 1/6Opened c4: 1/6Opened Nf3: 1/6
Same-side castling: 10Castled kingside: 9Did not castle: 1Castled queenside: 1
Fianchettoed kingside: 6Played on the kingside: 4Played in the center: 2Played on the queenside: 2Fianchettoed queenside: 1
Active pieces: 8Backward pawn: 6Space advantage: 6Kept the bishop pair: 6Sacrificed material: 4Initiated exchanges: 4Avoided exchanges: 3Isolated pawn: 3Missed tactics: 2Accepted short draws: 2
Openings
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As White 6 games 0W 5D 1L
Englund Gambit Declined 1 game 0W 1D 0L
Reversed French 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Trompowsky Attack 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Queen's Gambit Declined 1 game 0W 0D 1L
Janowski Variation 1 game 0W 0D 1L
(unspecified)
1 game
0W
0D
1L
English Opening 1 game 0W 1D 0L
Symmetrical Variation 1 game 0W 1D 0L
Full Symmetry Line
1 game
0W
1D
0L
Slav Defense 1 game 0W 1D 0L
Modern Line 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Dutch Defense 1 game 0W 1D 0L
Raphael Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
As Black 5 games 2W 3D 0L
Sicilian Defense 3 games 2W 1D 0L
Alapin Variation 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Nyezhmetdinov-Rossolimo Attack 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
Closed 1 game 1W 0D 0L
(unspecified)
1 game
1W
0D
0L
English Opening 1 game 0W 1D 0L
Symmetrical Variation 1 game 0W 1D 0L
Full Symmetry Line
1 game
0W
1D
0L
Indian Defense 1 game 0W 1D 0L
London System 1 game 0W 1D 0L
(unspecified)
1 game
0W
1D
0L
Blunders Top 4 of 28
This player's costliest moves in analyzed games. Can you find the winning move?
Games Showing all 11 games
| Date | Event | Round | Color | Opponent | Result | Accuracy % | First moves |
|---|---|---|---|---|---|---|---|
| 2025.10.24 | Round 6: Strade, Arita - Collier, David O | 6.3 | 2025.10.24 Strade, Arita (11603437) (1950) | ½ | 83.70% | 1. e4 c5 2. c3 Nf6 3. e5 Nd5 | |
| 2025.10.23 | Round 5: Collier, David O - Wager, John D | 5.3 | 2025.10.23 Wager, John D (420204) (1960) | ½ | 89.60% | 1. e3 e5 2. d4 exd4 3. exd4 d5 | |
| 2025.10.22 | Round 4: Punnett, Alan K - Collier, David O | 4.4 | 2025.10.22 Punnett, Alan K (405400) (1916) | 1 | 90.90% | 1. e4 c5 2. Nf3 Nc6 3. Bb5 e5 | |
| 2025.10.19 | Round 1: Morgan, Jamie - Collier, David O | 1.6 | 2025.10.19 Morgan, Jamie (451495) (1845) | 1 | 91.20% | 1. e4 c5 2. Nc3 d6 3. f4 Nc6 | |
| 2025.10.17 | Round 7: Collier, David O - Toma, Katarzyna | 7.1 | 2025.10.17 Toma, Katarzyna (1119907) (2189) | ½ | 93.60% | 1. d4 Nf6 2. Bg5 g6 3. Bxf6 exf6 | |
| 2025.10.17 | Round 2: Collier, David O - Olson, Hamish | 2.1 | 2025.10.17 Olson, Hamish (2404257) (2309) | 0 | 90.70% | 1. d4 d5 2. c4 e6 3. Nc3 a6 | |
| 2024.10.19 | Round 7: Heppell, Ian N - Collier, David O | 7.9 | 2024.10.19 Heppell, Ian N (412058) (1930) | ½ | 98.60% | 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 | |
| 2024.10.18 | Round 6: Collier, David O - Curtis, John E | 6.7 | 2024.10.18 Curtis, John E (411892) (2021) | ½ | 94.10% | 1. c4 c5 2. Nc3 Nc6 3. Nf3 Nf6 | |
| 2024.10.17 | Round 5: Collier, David O - Dijksterhuis, Rolf | 5.7 | 2024.10.17 Dijksterhuis, Rolf (1006452) (1937) | ½ | 97.10% | 1. Nf3 d5 2. c4 c6 3. d4 Nf6 | |
| 2024.10.16 | Round 4: Rowe, Peter - Collier, David O | 4.8 | 2024.10.16 Rowe, Peter (10700099) (1887) | ½ | 94.70% | 1. d4 Nf6 2. Nf3 e6 3. Bf4 b5 | |
| 2024.10.14 | Round 2: Collier, David O - De Kruif, Kees | 2.9 | 2024.10.14 De Kruif, Kees (1006479) (1868) | ½ | 95.20% | 1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 |