Prepare against Alexander Diehm
DEU · World #42,967 classical · FIDE ID 4643240
Our database contains 257 games by Alexander Diehm, covering Apr 2003 to Jul 2026. Below you'll find Alexander Diehm's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Alexander Diehm 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 | 1,922 | 2,115 | Jan 2006 |
| Rapid | 1,983 | 1,995 | Aug 2025 |
| Blitz | 1,964 | 2,057 | May 2014 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 257 | 93 | 79 | 85 | 36.2% |
| As White | 120 | 48 | 36 | 36 | 40.0% |
| As Black | 137 | 45 | 43 | 49 | 32.8% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Alexander Diehm's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Alexander Diehm's side.
First moves as White (120 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| d4 | 120 | 100.0% | 55.0% |
Main lines as White
- 1.d4 — 100% of White games, 55.0% score
- …Nf6 (49% of these games) — Diehm usually continues c4 (57.0% score)
- …d5 (28% of these games) — Diehm usually continues e4 (62.5% score)
- …f5 (8% of these games) — Diehm usually continues c4 (71.4% score)
As Black against 1.e4 (65 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| c5 | 62 | 95.4% | 47.6% |
| e5 | 3 | 4.6% | 16.7% |
As Black against 1.d4 (41 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| f5 | 21 | 51.2% | 47.6% |
| d5 | 10 | 24.4% | 40.0% |
| Nf6 | 8 | 19.5% | 37.5% |
| c5 | 2 | 4.9% | 25.0% |
Alexander Diehm's chess games
All 257 games by Alexander Diehm in the Chess.ceo database (Apr 2003 - Jul 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: 93 wins, 79 draws, 85 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| D05 | Indian Defense | 17 | 5/4/8 | 29.4% |
| A58 | Benoni Defense | 12 | 7/4/1 | 58.3% |
| D00 | Blackmar-Diemer Gambit | 11 | 4/6/1 | 36.4% |
| A85 | Dutch Defense | 9 | 6/2/1 | 66.7% |
| E90 | King's Indian Defense: Orthodox Variation | 9 | 5/3/1 | 55.6% |
| D85 | Grünfeld Defense | 9 | 6/1/2 | 66.7% |
| D31 | Semi-Slav Defense | 6 | 1/1/4 | 16.7% |
| D02 | Queen's Pawn Game | 5 | 1/4/0 | 20.0% |
| A51 | Budapest Defense | 4 | 1/1/2 | 25.0% |
| A40 | Horwitz Defense | 4 | 1/1/2 | 25.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B32 | Sicilian | 34 | 15/7/12 | 44.1% |
| A04 | Dutch Defense | 28 | 8/13/7 | 28.6% |
| B22 | Sicilian: Alapin | 11 | 2/5/4 | 18.2% |
| A10 | English Opening | 9 | 7/0/2 | 77.8% |
| B23 | Sicilian: Closed | 8 | 2/2/4 | 25.0% |
| A94 | Slav Defense | 4 | 0/1/3 | 0.0% |
| D13 | Semi-Slav Defense | 3 | 1/1/1 | 33.3% |
| B13 | Benoni Defense | 3 | 1/1/1 | 33.3% |
| B30 | Sicilian: Rossolimo | 3 | 0/0/3 | 0.0% |
| A02 | Bird's opening | 2 | 1/1/0 | 50.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Aug 2019 | Thomas Abel | 2,266 | Eschborn Open | A90 |
| Apr 1999 | Patrick Bensch | 2,255 | 7th Passau Open | D70 |
| Jan 1997 | Ludwig Deglmann | 2,245 | 5th Passau Open | B23 |
| Jan 1997 | Juergen Sehrt | 2,240 | Giessen Open | B13 |
| Mar 2005 | Omri Schlesinger | 2,221 | ch-Hessen MVT | A58 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| Giessen Open | 1997 | 18 | 8.5 | 2,178 |
| ch-Hessen MVT | 2005 | 9 | 6 | 2,290 |
| Prague Holiday M11 | 2015 | 9 | 5 | 2,100 |
| Weilburg NBG Open | 1995 | 8 | 4 | 2,215 |
| ch-Frankfurt | 2004 | 8 | 2.5 | 2,047 |
| 8th Passau Open | 2000 | 7 | 3 | 1,751 |
| 12th Rhein Main Open | 2009 | 7 | 4.5 | 2,095 |
| 17th Karl Mala Memorial Open A | 2014 | 7 | 4 | 2,063 |
Interactive opening tree from all 257 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Alexander Diehm's chess games?
257 games by Alexander Diehm, from Apr 2003 to Jul 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 Alexander Diehm has played.
What does Alexander Diehm play on the first move as White?
Across 120 games with White in our database, Alexander Diehm opens with 1.d4 (100% of games). Against 1.e4 as Black, Alexander Diehm answers 1...c5 (95% of games), 1...e5 (5% of games). Against 1.d4: 1...f5 (51% of games), 1...d5 (24% of games), 1...Nf6 (20% of games).
What openings does Alexander Diehm play as White?
As White, Alexander Diehm's most-played openings in our database are: Indian Defense (17 games, 29.4% win rate); Benoni Defense (12 games, 58.3% win rate); Blackmar-Diemer Gambit (11 games, 36.4% win rate). The full breakdown of 120 games with White is in the table above.
What openings does Alexander Diehm play as Black?
As Black, Alexander Diehm most often plays: Sicilian (34 games, 44.1% win rate); Dutch Defense (28 games, 28.6% win rate); Sicilian: Alapin (11 games, 18.2% win rate). See the table above for the top ten Black openings across 137 games.
What is Alexander Diehm's FIDE rating?
Alexander Diehm is currently rated 1,922 in classical chess, 1,983 in rapid and 1,964 in blitz. Peak classical rating: 2,115 (Jan 2006).
How many games has Alexander Diehm played?
Our database contains 257 games by Alexander Diehm, covering Apr 2003 to Jul 2026. Overall record: 93 wins, 79 draws, 85 losses (36.2% win rate).
How do I prepare against Alexander Diehm?
257 games by Alexander Diehm 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.