Avatar of Franciszek Sernecki
Player Profile

Franciszek Sernecki FM

frankshar Wrocław Since 2019 (Active) Chess.com ♟♟♟♟
45.9% W 45.0% L 9.1% D
Bullet
2239
119W 146L 15D
Blitz
2488
356W 332L 74D
Rapid
2027
13W 4L 8D
Daily
1713
4W 1L 1D

Who Is Franciszek Sernecki?

Franciszek Sernecki, known online as frankshar, is a FIDE Master who treats the chess clock less like a limit and more like a dare. His chess story is built on volume, blitz marathons, late game escapes, and a refusal to go quietly. If the question is "is he winning?" the answer is usually "almost certainly, or very nearly so."

A Blitz Heart With a Comeback Soul

Blitz is clearly his natural habitat.

Blitz Rating254224182293216920442019: 20852020: 23282021: 23022022: 24482023: 24432024: 24162025: 25012026: 248820192020202120222023202420252026
captures the long road from his early 1900s adventures to a wild April 2022 jump that touched 2641. He has played more than a thousand online games, and he does not drift off when the game enters a difficult phase. His comeback rate is a genuinely secure 85.88%, and he still finds a way to win almost half of the games when he has just lost a piece. That is the stuff of tilted hearts and sleepless opponents.

Openings and Repertoire

His opening tastes lean toward practical, aggressive, and sometimes wonderfully weird. The Caro-Kann Defense is a clear favorite, and he plays it from both sides with solid results. When he is white, he is comfortable going down main lines against the Sicilian Defense, trying the Accelerated Dragon, Najdorf, and Taimanov systems. And when the occasion calls for chaos, he can surprise with b3, g3, or something far less subtle.

Win Rate by Opening0%25%75%100%50%Caro-Kann Defense: 52.3% over 65 gamesAmar Gambit: 57.9% over 38 gamesFrench Defense: Exchange Variation: 31.4% over 35 gamesColle System: Rhamphorhynchus Variation: 56.7% over 30 gamesCzech Defense: 50.0% over 28 gamesCaro-Kann Defense: Exchange Variation: 46.4% over 28 gamesCaro-Kann Defense52%Amar Gambit58%French Defense: Exchang…31%Colle System: Rhamphorh…57%Czech Defense50%Caro-Kann Defense: Exch…46%
shows that he rewards unpredictability, but the heavy repeated lines still earn their place in his preparation.

Meaningful Rivals

The most striking name in his online history is katklin. Across 42 games, Franciszek has 40 wins, 2 draws, and no losses. That is not a friendly rivalry, it is a private controlled study. The danger opposite is Antoni Kozak, who challenges him much harder, winning 9 of the 18 games and attaching an exciting back-and-forth to the rivalry list. He also owns a very healthy series against matmardzik, picking up 15 wins in 20 games.

The Stats That Make Him Memorable

  • His longest winning streak is 11, and his longest losing streak is 13, so the graph is not for the faint-hearted.
  • He is ruthless survivors: his early resignation rate is just 1.2%, and his one-sided losses are almost nonexistent.
  • He also loved long games: a typical win lasts about 79 moves, which is a lot of chess before breakfast.
  • He prefers playing at 5:00 AM and 6:00 AM, at least according to a small but perfect sample of wins. There is nothing safe about that.
Bio last updated 2026-09-07