Prepare against Bob Merx
NLD · World #26,385 classical · FIDE ID 204730
Our database contains 43 games by Bob Merx, covering Jul 2005 to Jul 2026. Below you'll find Bob Merx's most-played openings with White and Black, career performance record, notable wins and top events — everything you need to scout Bob Merx 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 | 2,008 | 2,137 | Mar 2014 |
| Rapid | 2,091 | 2,091 | Jul 2026 |
Performance record
| Split | Games | Wins | Draws | Losses | Win rate |
|---|---|---|---|---|---|
| Overall | 43 | 9 | 12 | 22 | 20.9% |
| As White | 22 | 6 | 3 | 13 | 27.3% |
| As Black | 21 | 3 | 9 | 9 | 14.3% |
Move-by-move preparation stats
Straight from the preparation tree built over all of Bob Merx's games — the same tree the interactive prep board lets you walk to any depth. Scores are from Bob Merx's side.
First moves as White (22 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e4 | 22 | 100.0% | 34.1% |
Main lines as White
- 1.e4 — 100% of White games, 34.1% score
- …c5 (27% of these games) — Merx usually continues Nc3 (16.7% score)
- …e5 (18% of these games) — Merx usually continues f4 (25.0% score)
- …e6 (14% of these games) — Merx usually continues d3 (50.0% score)
As Black against 1.e4 (13 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| e5 | 13 | 100.0% | 30.8% |
As Black against 1.d4 (4 games)
| Move | Games | Share | Player score |
|---|---|---|---|
| Nf6 | 2 | 50.0% | 75.0% |
| c5 | 2 | 50.0% | 50.0% |
Bob Merx's chess games
All 43 games by Bob Merx in the Chess.ceo database (Jul 2005 - 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: 9 wins, 12 draws, 22 losses.
Openings as White
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| B23 | Sicilian: Closed | 6 | 1/0/5 | 16.7% |
| C34 | King's Gambit | 4 | 1/0/3 | 25.0% |
| C00 | King's Indian Attack | 3 | 1/1/1 | 33.3% |
| B03 | Alekhine Defense | 2 | 1/0/1 | 50.0% |
| B06 | Modern Defense | 2 | 2/0/0 | 100.0% |
| B07 | Pirc Defense | 2 | 0/1/1 | 0.0% |
| C25 | Vienna Game | 1 | 0/0/1 | 0.0% |
| B16 | Caro-Kann: Main Line | 1 | 0/0/1 | 0.0% |
| B10 | Caro-Kann | 1 | 0/1/0 | 0.0% |
Openings as Black
| ECO | Opening | Games | W/D/L | Win rate |
|---|---|---|---|---|
| C77 | Ruy Lopez: Morphy Defense | 3 | 0/2/1 | 0.0% |
| A70 | Benoni Defense | 2 | 0/2/0 | 0.0% |
| C89 | Ruy Lopez: Closed | 2 | 1/0/1 | 50.0% |
| C26 | Vienna Game | 2 | 0/1/1 | 0.0% |
| C49 | Four Knights Game: Spanish Variation | 1 | 0/0/1 | 0.0% |
| C54 | Italian Game | 1 | 0/0/1 | 0.0% |
| C53 | Italian Game: Classical Variation | 1 | 1/0/0 | 100.0% |
| C33 | King's Gambit | 1 | 0/0/1 | 0.0% |
| C20 | King's Pawn Game | 1 | 0/0/1 | 0.0% |
| E23 | Nimzo-Indian Defense | 1 | 1/0/0 | 100.0% |
Notable wins
| Date | Opponent | Elo | Event | ECO |
|---|---|---|---|---|
| Feb 2010 | Tom E Wiley | 2,302 | 70th Leiden Noteboom Memorial | B03 |
| Oct 2013 | Armend Budima | 2,226 | 29th EU-Cup | B26 |
| May 2008 | Leo Klein | 2,081 | Maastricht Limburg Open | C00 |
| Sep 2011 | Matthew D Webb | 2,079 | 27th EU-Cup | B06 |
| May 2015 | Patrick Nauts | 2,022 | 9th Maastricht Limburg Open A | C92 |
Top events
| Event | Year | Games | Score | TPR |
|---|---|---|---|---|
| 27th EU-Cup | 2011 | 7 | 2.5 | 2,065 |
| 9th Maastricht Limburg Open A | 2015 | 7 | 2.5 | 2,069 |
| ch-LiSB | 2001 | 7 | 3 | 2,145 |
| Maastricht Limburg Open | 2008 | 7 | 2.5 | 1,936 |
| 29th EU-Cup | 2013 | 6 | 2 | 2,061 |
| 35th EU-Cup | 2019 | 2 | 0.5 | 1,902 |
| 70th Leiden Noteboom Memorial | 2010 | 2 | 1 | 2,431 |
| World Senior Teams +50 | 2025 | 2 | 1 | 2,089 |
Interactive opening tree from all 43 games, weak-spot detection and engine analysis.
Start preparationFrequently asked questions
Where can I find Bob Merx's chess games?
43 games by Bob Merx, from Jul 2005 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 Bob Merx has played.
What does Bob Merx play on the first move as White?
Across 22 games with White in our database, Bob Merx opens with 1.e4 (100% of games). Against 1.e4 as Black, Bob Merx answers 1...e5 (100% of games). Against 1.d4: 1...Nf6 (50% of games), 1...c5 (50% of games).
What openings does Bob Merx play as White?
As White, Bob Merx's most-played openings in our database are: Sicilian: Closed (6 games, 16.7% win rate); King's Gambit (4 games, 25.0% win rate); King's Indian Attack (3 games, 33.3% win rate). The full breakdown of 22 games with White is in the table above.
What openings does Bob Merx play as Black?
As Black, Bob Merx most often plays: Ruy Lopez: Morphy Defense (3 games, 0.0% win rate); Benoni Defense (2 games, 0.0% win rate); Ruy Lopez: Closed (2 games, 50.0% win rate). See the table above for the top ten Black openings across 21 games.
What is Bob Merx's FIDE rating?
Bob Merx is currently rated 2,008 in classical chess, 2,091 in rapid. Peak classical rating: 2,137 (Mar 2014).
How many games has Bob Merx played?
Our database contains 43 games by Bob Merx, covering Jul 2005 to Jul 2026. Overall record: 9 wins, 12 draws, 22 losses (20.9% win rate).
How do I prepare against Bob Merx?
43 games by Bob Merx 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.