Grandmaster Jon Ludvig Hammer
Meet Jon Ludvig Hammer, better known in the chess world as gmjlh, a true wizard of the 64 squares. Awarded the prestigious title of Grandmaster by FIDE, Jon Ludvig is no stranger to tactical wizardry and fierce competition.
Starting his blitz journey with a humble rating of 1656 back in 2010, Jon Ludvig quickly escalated the ranks to hit a blazing peak blitz rating of 2945 in April 2023. He's also a speed demon in bullet chess, having achieved a peak rating of 3070 in November 2020 — which may or may not be linked to some undisclosed caffeine intake.
His rapid rating peaked at a respectful 2754 in August 2019, demonstrating his versatile mastery across all time controls. With a career total of thousands of games, Jon Ludvig boasts a lightning-fast comeback rate of nearly 81%, proving that losing a piece is never a death sentence if you keep your cool — and your queen ready.
Not only is his brain sharp, but his instincts are sharp too: his longest winning streak is an astounding 71 games, and he is currently riding a 14-game winning spree. His opponents might want to bring their A-game — or a crystal ball.
Playing Style & Personality
Jon Ludvig averages around 72 moves per win, which tells us he enjoys the long strategic battles as much as flashy tactical fireworks. His win rates with white and black pieces hover impressively above 70%, showing no color bias — just pure, relentless chess.
With an early resignation rate of under 4%, he is not one to throw in the towel unless the position is truly hopeless. Outside the arena, Hammer is known for his engaging personality, sometimes throwing in a cheeky grin when he’s just swept the board clean.
Recent Performance Highlights
In his latest clash against Alexandra Botez in March 2025, Jon Ludvig displayed his trademark resilience, clinching victory by resignation after a methodical and precise kingside assault involving queenside control and timely tactical strikes. You can replay this masterpiece here, where every move feels like a stroke of calculated genius.
Opponent Insights
Jon Ludvig has faced top competitors like Alex Botez, GM Krikor, and Georg Meier multiple times, often gaining the upper hand with a win rate north of 65% against most of his frequent rivals. Beware if you find yourself on his opponent list — he’s lethal with a subtlety that can’t be easily anticipated.
Fun Fact
The mysterious “Top Secret” opening he played in over 6,000 blitz games with almost 70% win rate suggests he might just be holding back some super-powered strategies for the World Championship — or at least for his next stream.
In short: whether it’s bullet, blitz, or rapid, Jon Ludvig Hammer is a chess beast balancing tactical ferocity with strategic elegance, seasoned with a hint of playful genius. If chess was a melody, he'd be the composer and the grand conductor.
Constructive Feedback for Jon Ludvig Hammer
Jon Ludvig, your recent games show strong strategic understanding and an ability to control the center, especially in your wins where you effectively employed pawn breaks and piece activity. Your handling of complex middlegame positions is commendable, demonstrating good calculation and patience.
Strengths
- Opening Preparation: You choose solid and flexible openings, such as the Modern Defense and King's Fianchetto structures, allowing you to reach playable middlegame positions where your understanding shines.
- Positional Play: Your moves like 8.e5 and controlling key central squares have been effective. You also display good coordination between your heavy and minor pieces when building pressure.
- Endgame Technique: Your wins show confident conversion in simplified positions, utilizing passed pawns and active king positioning adeptly.
Areas for Improvement
- Time Management: In some losses, time pressure appeared to affect your decision-making, such as the game against schmetterling64 where you lost on time. Managing your clock better during critical moments will help maintain accuracy.
- Avoiding Overextension: Watch for positions where you push pawns aggressively (e.g., advancing f- or h-pawns) without sufficient backup; occasionally, these moves can weaken your king's safety or lose tactical battles.
- Calculation Precision in Complex Positions: The losses against strong opposition often involved critical tactical moments where deeper calculation could have changed the evaluation. Reviewing these moments and practicing calculation drills can sharpen this skill.
Suggested Focus Areas
- Practice increment or rapid games to improve your time management under pressure.
- Analyze games to identify moments when pawn advances create weaknesses, and consider prophylactic moves.
- Study tactical motifs related to common middlegame structures you play.
Keep building on your strong positional foundation and endgame technique, and with focused effort on tactical clarity and time control, you'll continue to improve.
Here is your most recent victory sequence for reference:
[Event "Live Chess"] [Site "Chess.com"] [Date "2025.03.20"] [White "gmjlh"] [Black "AlexandraBotez"] [Result "1-0"] 1. g3 g6 2. Bg2 Bg7 3. e3 d5 4. d4 c6 5. c4 Nf6 6. cxd5 cxd5 7. Nc3 O-O 8. Nge2 Nc6 9. O-O Bf5 10. Nf4 e6 11. h3 g5 12. Nh5 Nxh5 13. Qxh5 Bg6 14. Qd1 Rb8 15. Bd2 h5 16. Rc1 h4 17. gxh4 gxh4 18. Qg4 Bf5 19. Qe2 Kh7 20. Kh2 Bg6 21. Rg1 Qd6+ 22. f4 Bh6 23. Bf3 Rg8 24. Nb5 Qd7 25. Nc3 Bf5 26. Bg4 Bxg4 27. hxg4 Qe7 28. g5 Bg7 29. Qh5+ 1-0
🆚 Opponent Insights
| Most Played Opponents | ||
|---|---|---|
| Alexandra Botez | 249W / 10L / 6D | View Games |
| Johan-Sebastian Christiansen | 61W / 60L / 13D | View Games |
| Georg Meier | 26W / 47L / 28D | View Games |
| Andrew Tang | 25W / 51L / 9D | View Games |
| Krikor Sevag Mekhitarian | 45W / 34L / 6D | View Games |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2953 | 2820 | ||
| 2024 | 2898 | 2656 | ||
| 2023 | 2897 | 2750 | 2455 | |
| 2022 | 2962 | 2853 | 2555 | |
| 2021 | 2923 | 2787 | 2654 | |
| 2020 | 2889 | 2785 | 2625 | |
| 2019 | 2798 | 2652 | 2754 | |
| 2018 | 2859 | 2670 | 2675 | |
| 2017 | 2765 | 2610 | 2651 | |
| 2016 | 2854 | 2638 | ||
| 2015 | 2874 | 2572 | ||
| 2014 | 2526 | |||
| 2013 | 2777 | 2506 | ||
| 2012 | 2760 | 2536 | ||
| 2011 | 2958 | 2128 | ||
| 2010 | 2941 | 2133 | 1200 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 108W / 51L / 9D | 96W / 62L / 11D | 81.7 |
| 2024 | 176W / 124L / 20D | 180W / 111L / 29D | 84.5 |
| 2023 | 287W / 108L / 32D | 288W / 111L / 23D | 80.4 |
| 2022 | 759W / 140L / 47D | 728W / 154L / 54D | 78.7 |
| 2021 | 393W / 94L / 37D | 369W / 128L / 34D | 80.1 |
| 2020 | 196W / 50L / 20D | 186W / 64L / 24D | 83.6 |
| 2019 | 755W / 147L / 46D | 753W / 148L / 46D | 73.0 |
| 2018 | 1411W / 359L / 99D | 1360W / 386L / 99D | 73.7 |
| 2017 | 204W / 55L / 16D | 180W / 82L / 11D | 82.4 |
| 2016 | 207W / 69L / 19D | 185W / 79L / 26D | 75.9 |
| 2015 | 36W / 18L / 7D | 38W / 13L / 5D | 92.3 |
| 2014 | 12W / 1L / 2D | 8W / 4L / 2D | 90.6 |
| 2013 | 28W / 6L / 2D | 25W / 7L / 3D | 74.5 |
| 2012 | 386W / 104L / 24D | 373W / 111L / 30D | 81.8 |
| 2011 | 42W / 15L / 2D | 43W / 10L / 2D | 75.5 |
| 2010 | 89W / 5L / 1D | 88W / 3L / 2D | 74.6 |
Openings: Most Played
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Caro-Kann Defense | 441 | 299 | 116 | 26 | 67.8% |
| Unknown | 258 | 179 | 78 | 1 | 69.4% |
| Amazon Attack: Siberian Attack | 167 | 114 | 38 | 15 | 68.3% |
| Ruy Lopez: Berlin Defense, Berlin Wall | 120 | 76 | 22 | 22 | 63.3% |
| London System: Poisoned Pawn Variation | 118 | 80 | 28 | 10 | 67.8% |
| Amar Gambit | 105 | 87 | 16 | 2 | 82.9% |
| Diemer-Duhm Gambit (DDG): 4...f5 | 97 | 56 | 29 | 12 | 57.7% |
| English Opening: Agincourt Defense | 91 | 63 | 21 | 7 | 69.2% |
| QGD: 4.Nf3 | 88 | 54 | 27 | 7 | 61.4% |
| Scandinavian Defense | 88 | 71 | 14 | 3 | 80.7% |
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Amar Gambit | 3393 | 2651 | 585 | 157 | 78.1% |
| Modern | 1309 | 995 | 255 | 59 | 76.0% |
| Australian Defense | 778 | 612 | 130 | 36 | 78.7% |
| Colle System: Rhamphorhynchus Variation | 375 | 288 | 79 | 8 | 76.8% |
| English Opening: Agincourt Defense | 178 | 126 | 44 | 8 | 70.8% |
| Nimzo-Larsen Attack | 88 | 66 | 19 | 3 | 75.0% |
| English Opening | 76 | 62 | 6 | 8 | 81.6% |
| Caro-Kann Defense | 47 | 28 | 15 | 4 | 59.6% |
| Unknown | 47 | 34 | 13 | 0 | 72.3% |
| French Defense | 46 | 37 | 6 | 3 | 80.4% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Caro-Kann Defense | 20 | 17 | 2 | 1 | 85.0% |
| Ruy Lopez: Berlin Defense, Berlin Wall | 14 | 6 | 3 | 5 | 42.9% |
| Petrov's Defense | 13 | 11 | 1 | 1 | 84.6% |
| Scandinavian Defense | 12 | 11 | 0 | 1 | 91.7% |
| English Opening: King's English Variation | 12 | 10 | 1 | 1 | 83.3% |
| Ruy Lopez: Exchange Variation | 11 | 10 | 1 | 0 | 90.9% |
| Amazon Attack: Siberian Attack | 11 | 7 | 0 | 4 | 63.6% |
| London System: Poisoned Pawn Variation | 10 | 8 | 1 | 1 | 80.0% |
| Diemer-Duhm Gambit (DDG): 4...f5 | 10 | 7 | 1 | 2 | 70.0% |
| Italian Game: Two Knights Defense | 9 | 4 | 4 | 1 | 44.4% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 71 | 1 |
| Losing | 18 | 0 |