Prepare against William Arntzen Walgren
Norway · World #10,475 classical · FIDE ID 1562088
Our database contains 30 games by William Arntzen Walgren, covering Dec 2020 to Aug 2026. Below you'll find William Arntzen Walgren's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout William Arntzen Walgren 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 | 2,162 | 2,167 | Jul 2026 |
| Rapid | 2,017 | 2,017 | Aug 2026 |
| Blitz | 2,098 | 2,135 | Apr 2025 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 30 | 12 | 9 | 9 | 40.0% |
| As White | 18 | 8 | 6 | 4 | 44.4% |
| As Black | 12 | 4 | 3 | 5 | 33.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of William Arntzen Walgren's games — the same tree the interactive prep board lets you walk to any depth. Scores are from William Arntzen Walgren's side.
First moves as White (18 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 17 | 94.4% | 61.8% |
| Nf3 | 1 | 5.6% | 50.0% |
Main lines as White
- 1.e4 — 94% of White games, 61.8% score
- …c5 (29% of these games) — Walgren usually continues Nf3 (40.0% score)
- …e5 (24% of these games) — Walgren usually continues Nf3 (37.5% score)
- …e6 (18% of these games) — Walgren usually continues d4 (83.3% score)
- 1.Nf3 — 6% of White games, 50.0% score
- …Nf6 (100% of these games) — Walgren usually continues c4 (50.0% score)
As Black against 1.e4 (6 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 5 | 83.3% | 50.0% |
| e5 | 1 | 16.7% | 100.0% |
As Black against 1.d4 (6 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 6 | 100.0% | 33.3% |
William Arntzen Walgren's chess games
All 30 games by William Arntzen Walgren in the Chess.ceo database (Dec 2020 - Aug 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: 12 wins, 9 draws, 9 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B32 | Sicilian | 2 | 1/0/1 | 50.0% |
| C11 | French: Classical Variation | 2 | 2/0/0 | 100.0% |
| A14 | English Opening: Neo-Catalan | 1 | 0/1/0 | 0.0% |
| C18 | French: Winawer Variation | 1 | 0/1/0 | 0.0% |
| C56 | Italian Game | 1 | 0/0/1 | 0.0% |
| A82 | King's Pawn Game | 1 | 1/0/0 | 100.0% |
| C42 | Petrov's Defense | 1 | 0/0/1 | 0.0% |
| C66 | Ruy Lopez | 1 | 1/0/0 | 100.0% |
| C63 | Ruy Lopez: Schliemann | 1 | 0/1/0 | 0.0% |
| B01 | Scandinavian Defense: Main Line | 1 | 1/0/0 | 100.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B90 | Sicilian: Najdorf | 3 | 1/1/1 | 33.3% |
| E15 | Queen's Indian Defense | 2 | 0/0/2 | 0.0% |
| E05 | Catalan | 2 | 1/1/0 | 50.0% |
| B50 | Sicilian | 2 | 1/0/1 | 50.0% |
| C62 | Ruy Lopez | 1 | 1/0/0 | 100.0% |
| E13 | Nimzo-Indian Defense | 1 | 0/1/0 | 0.0% |
| A33 | English Opening: Symmetrical | 1 | 0/0/1 | 0.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Jul 2026 | Fredrik Valstad Elsness | 2,113 | Landsturneringen 2026 | Junior A | B90 |
| Jul 2026 | Marius Hag Dale | 2,058 | Landsturneringen 2026 | Junior A | B15 |
| Jul 2026 | Astor Moe Maurstad | 2,054 | Landsturneringen 2026 | Junior A | E05 |
| Jul 2026 | Lauritz Nissen Hellerud | 1,966 | Landsturneringen 2026 | Junior A | B32 |
| May 2026 | Alexander Stole | 1,903 | TCh-NOR Club 2026 | B01 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Landsturneringen 2026 | Junior A | 2026 | 9 | 5.5 | 2,154 |
| 39th ECC Open | 2024 | 7 | 2.5 | 1,942 |
| TCh-NOR Club 2026 | 2026 | 6 | 5 | 2,180 |
| TCh-NOR Club | 2025 | 4 | 2.5 | 1,958 |
| chT-NOR Clubs | 2022 | 2 | 0.5 | 1,086 |
| NM for klubblag - DGT | 2026 | 1 | 0.5 | 1,761 |
| ch-NOR Rapid | 2024 | 1 | 0 | 2,036 |
Interactive opening tree from all 30 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find William Arntzen Walgren's chess games?
30 games by William Arntzen Walgren, from Dec 2020 to Aug 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 Arntzen Walgren has played.
What does William Arntzen Walgren play on the first move as White?
Across 18 games with White in our database, William Arntzen Walgren opens with 1.e4 (94% of games), 1.Nf3 (6% of games). Against 1.e4 as Black, William Arntzen Walgren answers 1...c5 (83% of games), 1...e5 (17% of games). Against 1.d4: 1...Nf6 (100% of games).
What openings does William Arntzen Walgren play as White?
As White, William Arntzen Walgren's most-played openings in our database are: Sicilian (2 games, 50.0% win rate); French: Classical Variation (2 games, 100.0% win rate); English Opening: Neo-Catalan (1 games, 0.0% win rate). The full breakdown of 18 games with White is in the table above.
What openings does William Arntzen Walgren play as Black?
As Black, William Arntzen Walgren most often plays: Sicilian: Najdorf (3 games, 33.3% win rate); Queen's Indian Defense (2 games, 0.0% win rate); Catalan (2 games, 50.0% win rate). See the table above for the top ten Black openings across 12 games.
What is William Arntzen Walgren's FIDE rating?
William Arntzen Walgren is currently rated 2,162 in classical chess, 2,017 in rapid and 2,098 in blitz. Peak classical rating: 2,167 (Jul 2026).
How many games has William Arntzen Walgren played?
Our database contains 30 games by William Arntzen Walgren, covering Dec 2020 to Aug 2026. Overall record: 12 wins, 9 draws, 9 losses (40.0% win rate).
How do I prepare against William Arntzen Walgren?
30 games by William Arntzen Walgren 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.