Prepare against William Alexander Olsen
FM · Norway · World #3,274 classical · FIDE ID 1536915
When preparing against William Alexander Olsen, expect 1.d4 in 42% of White games. Against 1.e4 the reply is 1...c5 (56% of games); against 1.d4, 1...Nf6 (93%).
Our database contains 157 games by William Alexander Olsen, covering Apr 2016 to Sep 2026. Below you'll find William Alexander Olsen's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout William Alexander Olsen before a game. You can open the same data in the free interactive preparation workstation, which builds a move-by-move opening tree from every game.
Ratings
| Time control | Current | Peak | Peak date |
|---|---|---|---|
| Classical | 2,328 | 2,328 | Sep 2026 |
| Rapid | 2,202 | 2,202 | Sep 2026 |
| Blitz | 2,175 | 2,265 | May 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 157 | 76 | 25 | 56 | 48.4% |
| As White | 73 | 40 | 15 | 18 | 54.8% |
| As Black | 84 | 36 | 10 | 38 | 42.9% |
Move-by-move preparation stats
Straight from the preparation tree built over all of William Alexander Olsen's games — the same tree the interactive prep board lets you walk to any depth. Scores are from William Alexander Olsen's side.
First moves as White (71 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 30 | 42.3% | 61.7% |
| e4 | 27 | 38.0% | 59.3% |
| Nf3 | 11 | 15.5% | 81.8% |
| c4 | 3 | 4.2% | 100.0% |
Main lines as White
- 1.d4 — 42% of White games, 61.7% score
- …Nf6 (57% of these games) — Olsen usually continues c4 (61.5% score)
- …d5 (30% of these games) — Olsen usually continues c4 (61.1% score)
- …e6 (3% of these games) — Olsen usually continues c4 (50.0% score)
- 1.e4 — 38% of White games, 59.3% score
- …c5 (44% of these games) — Olsen usually continues Nf3 (61.1% score)
- …e5 (33% of these games) — Olsen usually continues Nc3 (40.0% score)
- …c6 (11% of these games) — Olsen usually continues d4 (66.7% score)
As Black against 1.e4 (36 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 20 | 55.6% | 55.0% |
| e5 | 10 | 27.8% | 50.0% |
| c6 | 5 | 13.9% | 60.0% |
| e6 | 1 | 2.8% | 50.0% |
As Black against 1.d4 (29 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 27 | 93.1% | 44.4% |
| d5 | 2 | 6.9% | 0.0% |
William Alexander Olsen's chess games
All 157 games by William Alexander Olsen in the Chess.ceo database (Apr 2016 - Sep 2026) are free to browse, search and replay: filter by opening, opponent, event or date on the player page, or step through any game on the analysis board. Record: 76 wins, 25 draws, 56 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D35 | Indian Defense | 12 | 6/4/2 | 50.0% |
| C27 | Vienna Game | 5 | 1/2/2 | 20.0% |
| A06 | Réti Opening | 5 | 3/1/1 | 60.0% |
| D45 | Slav Defense | 4 | 2/1/1 | 50.0% |
| B50 | Sicilian | 4 | 3/0/1 | 75.0% |
| B23 | Sicilian: Closed | 3 | 1/2/0 | 33.3% |
| B13 | Caro-Kann: Exchange Variation | 2 | 2/0/0 | 100.0% |
| A49 | English Opening | 2 | 2/0/0 | 100.0% |
| E12 | Queen's Indian Defense | 2 | 2/0/0 | 100.0% |
| E60 | King's Indian Defense: Fianchetto Variation | 2 | 1/0/1 | 50.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B32 | Sicilian | 9 | 6/0/3 | 66.7% |
| B31 | Sicilian: Rossolimo | 6 | 2/1/3 | 33.3% |
| A20 | English Opening: Reverse Sicilian | 6 | 3/0/3 | 50.0% |
| A13 | English Opening | 5 | 2/0/3 | 40.0% |
| E16 | Queen's Indian Defense | 4 | 2/2/0 | 50.0% |
| E44 | Nimzo-Indian: Rubinstein System | 4 | 2/0/2 | 50.0% |
| C70 | Ruy Lopez: Morphy Defense | 4 | 1/0/3 | 25.0% |
| A46 | Indian Defense | 4 | 1/1/2 | 25.0% |
| C55 | Italian Game | 4 | 3/0/1 | 75.0% |
| A45 | Queen's Pawn Game: Chigorin Variation | 3 | 1/0/2 | 33.3% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jun 2026 | Vladimir-Alexandru Cnejev | 2,421 | World Youth Open U18 2026 | B40 |
| Jun 2026 | Adi Menahem | 2,316 | World Youth Open U18 2026 | D37 |
| Apr 2025 | Vegar Koi Gandrud | 2,273 | Fagernes GM Open | B50 |
| Jul 2026 | Louis Khoo-Thwe | 2,268 | Landsturneringen 2026 | Junior A | D43 |
| Feb 2026 | Benedikt Briem | 2,238 | Nordic Youth Chess Championships 2026 - Group A | D35 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| World Youth Open U18 2026 | 2026 | 11 | 5.5 | 2,253 |
| ch-EU Online U12 | 2020 | 9 | 5 | 1,653 |
| Fagernes GM Open | 2025 | 9 | 4 | 2,144 |
| Maia Chess Open 2026 | 2026 | 9 | 6.5 | 2,365 |
| Landsturneringen 2026 | Junior A | 2026 | 9 | 7 | 2,339 |
| Kragero Open B | 2020 | 8 | 4.5 | 1,739 |
| ch-NOR U12 | 2019 | 7 | 5 | 1,576 |
| Norway Chess Open May | 2026 | 7 | 5 | 2,117 |
Interactive opening tree from all 157 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find William Alexander Olsen's chess games?
157 games by William Alexander Olsen, from Apr 2016 to Sep 2026, are free to browse and replay move by move — no signup needed. The preparation view groups them into an opening tree showing every line William Alexander Olsen has played.
What does William Alexander Olsen play on the first move as White?
Across 71 games with White in our database, William Alexander Olsen opens with 1.d4 (42% of games), 1.e4 (38% of games), 1.Nf3 (15% of games). Against 1.e4 as Black, William Alexander Olsen answers 1...c5 (56% of games), 1...e5 (28% of games), 1...c6 (14% of games). Against 1.d4: 1...Nf6 (93% of games), 1...d5 (7% of games).
What openings does William Alexander Olsen play as White?
As White, William Alexander Olsen's most-played openings in our database are: Indian Defense (12 games, 50.0% win rate); Vienna Game (5 games, 20.0% win rate); Réti Opening (5 games, 60.0% win rate). The full breakdown of 73 games with White is in the table above.
What openings does William Alexander Olsen play as Black?
As Black, William Alexander Olsen most often plays: Sicilian (9 games, 66.7% win rate); Sicilian: Rossolimo (6 games, 33.3% win rate); English Opening: Reverse Sicilian (6 games, 50.0% win rate). See the table above for the top ten Black openings across 84 games.
What is William Alexander Olsen's FIDE rating?
William Alexander Olsen is currently rated 2,328 in classical chess, 2,202 in rapid and 2,175 in blitz. Peak classical rating: 2,328 (Sep 2026).
How many games has William Alexander Olsen played?
Our database contains 157 games by William Alexander Olsen, covering Apr 2016 to Sep 2026. Overall record: 76 wins, 25 draws, 56 losses (48.4% win rate).
How do I prepare against William Alexander Olsen?
157 games by William Alexander Olsen reveal their opening repertoire, most-played lines, and the variations where they score worst — the raw material for targeted preparation. The interactive opening tree lets you walk every line to any depth.