FMWilliam Alexander Olsen
NOR · FIDE ID 1536915 · 140 tournament games since 2020
Standard
2328
#45 in NOR (active)
Rapid
2202
#73 in NOR (active)
Blitz
2175
#92 in NOR (active)
Score
57%
67 W · 27 D · 46 L
Opp. avg
2142
Last 50 games
Last game
2026-08-29
Maia Chess Open 2026 | Masters
Prep summary
- As White: 1.e4 in 48% of games (scores 67%), otherwise 1.d4 (41%).
- Against 1.e4: 1...c5 in 25 of 37 games (Sicilian Defense), scoring 58%.
- Against 1.d4: 1...Nf6 in 18 of 20 games (Indian Defense), scoring 44%.
- Comfort zone: Zukertort Opening as White, 70% in 5 games.
- By opponent strength: 34% against higher-rated players, 82% against lower-rated.
Based on 140 over-the-board games (76 classical · 2 rapid · 1 blitz). 69 with White (64%), 71 with Black (51%).
Openings as White
First move
| 1.e4 | 33 | 67% |
| 1.d4 | 28 | 57% |
| 1.Nf3 | 5 | 70% |
| 1.c4 | 3 | 100% |
Most played
| Opening | Games | Score |
|---|---|---|
| Zukertort Opening | 5 | 70% |
| Queen's Gambit Declined: Exchange Variation, Positional Variation | 3 | 33% |
| Sicilian Defense: Hyperaccelerated Dragon | 2 | 75% |
| King's Indian Defense: Semi-Averbakh System | 2 | 50% |
| Caro-Kann Defense: Exchange Variation | 2 | 75% |
Openings as Black
Against 1.e4 (37 games)
| 1...c5 Sicilian Defense | 25 | 58% |
| 1...e5 King's Pawn Game | 12 | 54% |
Against 1.d4 (20 games)
| 1...Nf6 Indian Defense | 18 | 44% |
| 1...d5 Queen's Pawn Game | 2 | 0% |
Most played
| Opening | Games | Score |
|---|---|---|
| Italian Game: Two Knights Defense, Modern Bishop's Opening | 4 | 50% |
| Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | 4 | 38% |
| King's Indian Attack | 3 | 33% |
| Sicilian Defense: Kan Variation, Wing Attack | 3 | 100% |
| English Opening: Agincourt Defense | 2 | 75% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-08-29 | Ivo Rodrigues Dias (2080) Maia Chess Open 2026 | Masters | W |
| 2026-08-28 | Sonja Maria Bluhm (2200) Maia Chess Open 2026 | Masters | W |
| 2026-08-27 | Teodor Tenfjord Engelsen (2178) Maia Chess Open 2026 | Masters | ½ |
| 2026-08-26 | Daniel Romero Pallares (2296) Maia Chess Open 2026 | Masters | L |
| 2026-08-25 | Ricardo Paulos Fernandes (2138) Maia Chess Open 2026 | Masters | W |
| 2026-08-24 | Georgios Gkoumas (2438) Maia Chess Open 2026 | Masters | ½ |
| 2026-08-23 | Andre Neves Fidalgo (2149) Maia Chess Open 2026 | Masters | W |
| 2026-08-22 | Jose Ramon Gonzalez Perez (2134) Maia Chess Open 2026 | Masters | ½ |
| 2026-08-22 | Pedro Rafael Melo Reis (2073) Maia Chess Open 2026 | Masters | W |
| 2026-07-07 | Teodor Tenfjord Engelsen (2227) Landsturneringen 2026 | Junior A | W |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.