Overview
Christoph von Puttkamer, known online as SharpCube, is a FIDE Master and a well known figure in fast time control chess. A Bullet specialist with an aggressive, tactical approach, Christoph has become famous for surprise openings and endgame grit. This short biography highlights his style, signature openings, memorable moments, and a few fun quirks that make him a distinct personality on the server and in tournament rooms.
Playing style
Christoph blends speed with deep tactical intuition. His games tend to be long for bullet, which suggests a fondness for complicated, piece heavy positions and practical endgame technique. He is comfortable taking risks, often hunting for imbalances early and trusting his calculation under time pressure.
- Preferred time control: Bullet (his primary arena and where his reputation was forged)
- Key traits: tactical sharpness, high endgame frequency, low early resign rate
- Psychology: a resilient comeback rate and a known ability to turn lost positions into wins
Signature openings and repertoire
Christoph uses a surprising variety of systems to keep opponents off balance. He often adopts offbeat and aggressive choices as White and dynamic defenses as Black. A handful of his most successful lines are listed below.
- Amar Gambit (one of his most effective weapons as White) — see term: Amar Gambit
- Döry Defense (very high win rate in Bullet)
- Caro-Kann Defense (solid and practical choices as Black)
- Amazon Attack and its Siberian Attack sublines (dangerous in blitz)
- London System: Poisoned Pawn Variation (used frequently with good results)
For on-board variety, Christoph mixes mainstream theory with unexpected sidelines to steer the game into positions where intuition and clock management win the day.
Career highlights
Christoph earned the FIDE Master title and rose to prominence online thanks to an intense Bullet schedule and many high quality victories against strong opposition. His peak Bullet performance is notable among titled online specialists.
- Title: FIDE Master
- Peak Bullet rating: 2650 (2025-02-08)
- Long winning runs and tournament streaks that show endurance in marathon sessions
- Extensive experience in both White and Black roles across many modern and offbeat openings
Trend chart for quick reference:
Selected game and study
One of SharpCube's dramatic finishes is captured here. Click to review a standout encounter against a frequent opponent.
- Thrilling finish vs a top opponent: Thrilling finish
- Mini study for players who enjoy tactical melee:
Statistics snapshot
This is a concise look at Christoph's performance tendencies, useful for opponents preparing to face him and for fans following his progress.
- Preferred arena: Bullet, with thousands of recorded games and a very competitive win pool
- Top openings with strong win rates include Amar Gambit and Döry Defense
- Streaks: longest winning streak recorded is 18 games, longest losing streak 12 games
- Typical game length: long for fast chess, reflecting complex positions and endgame play
Personality and fun facts
Off the board Christoph has a wry sense of humor and a fascination for strange opening names. He is the sort of player who will play an Amar Gambit just to see what happens. Fans praise his resilience and the consistent excitement of his online streams and posts.
- Username: SharpCube
- Known for surprising opening choices and creative tactics
- Best time of day for peak play: unusual hours can be his strongest window
- Quote for the mirror: "If it looks crazy and it works, it was part of the plan"
Want to follow his games?
For fans and rivals, Christoph's archive offers a treasure trove of practical opening ideas and entertaining blitz marathons. Search by his handle SharpCube to find live games, commentary, and annotated gems.