Avatar of Piotr Dudzinski

Piotr Dudzinski FM

Username: OTSz

Playing Since: 2020-11-16 (Active)

Wow Factor: ♟♟♟♟♟

Chess.com

Blitz: 2758
1502W / 1496L / 624D
Bullet: 2558
273W / 164L / 25D

Piotr Dudzinski (Username: OTSz)

FIDE Master & Blitz Connoisseur

Born to confuse opponents and delight fans, Piotr Dudzinski, better known online as OTSz, holds the esteemed title of FIDE Master. With a blitz peak rating soaring to an astonishing 2794 in March 2025, Piotr is the kind of player who turns rapid-fire gambits and lightning tactics into a breathtaking performance – sometimes a symphony, occasionally a wild rollercoaster. His bullet rating isn’t far behind, peaking at 2585, proving he’s no stranger to both speed and precision.

Playing Style and Strengths

Piotr exhibits a strikingly patient endgame sense, with an 88% frequency of fighting tooth and nail to the very end. His average winning games last about 83 moves, accompanied by the same level of perseverance in losses stretching to about 89 moves. Early resignation is rare in his repertoire (only 10%), signaling a true fighter's spirit. He’s also a comeback artist extraordinaire, jingling a strong tactical awareness with an 86% comeback rate after being down—a chess Houdini for the ages.

Opening Repertoire

When it comes to openings, Piotr likes to keep opponents guessing. In blitz, he has an impressive success rate with the Alapin Sicilian Defense (~57%) and the Caro-Kann Defense variations (~56%), showing a fondness for solid and counterattacking plays. Interestingly, he also dabbles in "Top Secret" openings – whether it’s a mysterious weapon or just a cheeky surprise, opponents seldom know what hit them. In bullet games, "Top Secret" openings are his trademark, boasting a jaw-dropping 72% win rate. Code names and classified moves? Yes, please!

Game Highlights & Personality

Piotr’s recorded recent victories include classic tactical masterpieces and cunning maneuvering against notable opponents like amin_molaei and Lucidination. His games often conclude with a flourish — whether by resignation, timeout, or glorious checkmate. Despite occasional defeats, his resilience is a hallmark, and his psychological tilt factor of 8 hints he’s mostly cool under fire (unless the coffee runs out).

Behind The Scenes

Off the board, Piotr can be imagined as a strategist who probably contemplates his next move while waiting in line for coffee or while stuck in traffic (or maybe even while brushing teeth). With nearly a thousand blitz wins versus 846 losses and a bullet record finely balanced with 258 wins against 147 losses, this player’s journey is a blend of calculated risks, sheer willpower, and a pinch of joyful chaos. His fans know one thing for sure: never blink when OTSz is online, or you'll miss a wizardry moment.

Favorite Times to Play

His best performances often come during odd hours, notably at 3 AM—because who better to outwit opponents than when the world is asleep? With a remarkable 66.67% win rate at 3 AM and strong statistics in the early morning hours, Piotr turns insomnia into a competitive edge.

Piotr Dudzinski – a master of the board, an enigma off it, and definitely someone you don’t want to play when he’s fueled by caffeine and late-night inspiration.


Coach Chesswick's Profile Photo
Coach Chesswick

Hi Piotr!

Great job climbing through the 2700 blitz bracket – that is already an impressive achievement (your best so far: 2800 (2025-06-24)). Below is a short review of the last playing session together with an action-oriented improvement plan.

1. What you already do well

  • Solid French repertoire. In virtually every win as Black you reached comfortable middlegames out of the French (Rubinstein/Fort Knox & Exchange). Your move orders are crisp, and you correctly seize the e5/c5 breaks when they appear.
  • Tactical alertness. The miniature against North097 ended after 23…Nf6! – a nice prophylactic resource that also threatened …Rc1+, winning by force. These one-move “sting” solutions are becoming a trademark of your play.
  • Converting extra material. Once a pawn up you rarely allow counter-play; the smooth rook endgame versus 8AFAZ8 is a textbook example.

2. Recurring problems that cost points

  • Over-extension on the kingside when facing fianchetto setups. Both losses to cristianserban1 began with …g6/…h5 followed by conceded dark-square holes. A critical position is shown below – notice how every pawn move created a new square for White’s pieces:

  • Piece mis-coordination vs. flank openings. In the English game you shuffled the knight (…Ne8–d6–f5–h4) while the queenside majority remained undeveloped. Learning typical plans against the English/Réti will prevent this.
  • Playing for tactics before your king is safe. The Alapin loss came after 14…f5?! while still behind in development. Your instincts are right (look for counterplay) but the execution must respect king safety first.
  • Clock pressure in sharp positions. Several blunders occurred below 25 seconds; tightening your think-ahead routine will keep you calm here.

3. Targeted training plan (next 4 weeks)

  1. Opening refresh vs. 1.c4 / 1.Nf3.
    • Add a simple, principled system (e.g. …e6/…d5 with an early …c5) and rehearse 20 model games.
    • Annotate each game, paying special attention to the dark-square strategy around your king.
  2. Daily defensive tactics.
    • 15–20 puzzles focusing on saving moves, zwischenzugs, and perpetuals.
    • Use the “blunder check” feature right after each blitz session to tag motifs you missed.
  3. Prophylaxis drills. (Understanding prophylaxis)
    • Play training games against a sparring partner where you must verbally state one threat by the opponent every move. This slows you down just enough to avoid self-inflicted weaknesses.
  4. Time-management ritual.
    • Force yourself to spend at least 5 seconds before the first pawn move in any unfamiliar position; this reduces impulsive pushes like …h5/…f5.

4. Progress tracking

You can measure improvement via:

  • Your hourly win-rate heat-map – see
    01234567891011121314151617181920212223100%0%Hour of Day
    .
  • Day-to-day performance swings – see
    MonTueWedThuFriSatSun100%0%Day of Week
    .
  • Head-to-head rematches (try challenging Serban Cristian once you feel ready).

5. Quick encouragement

Remember that every 2700 player still blunders – your edge will come from consistency. Stick to the plan above and the next jump (2750+) is realistic. Good luck, and feel free to send over any games you would like analysed in depth!



🆚 Opponent Insights

Recent Opponents
Mika Karttunen 2W / 3L / 0D View
Impossibleforu 3W / 4L / 5D View
Simon Williams 3W / 0L / 0D View
chesssknock 0W / 2L / 0D View
HandyClover 1W / 0L / 0D View
Shaolong Du 1W / 0L / 0D View
Alan Morris-Suzuki 4W / 2L / 0D View
Zbigniew Pakleza 1W / 2L / 0D View
Filip Dowgird 3W / 10L / 4D View
unknown 0W / 0L / 1D View
Most Played Opponents
Rasan04 10W / 10L / 8D View Games
BSWPaulsen 6W / 7L / 4D View Games
Filip Dowgird 3W / 10L / 4D View Games
Paul Szuper 9W / 5L / 3D View Games
PracticeMakesOK 2W / 9L / 4D View Games

Rating

Year Bullet Blitz Rapid Daily
2025 2558 2748
2024 2482 2768
2023 2522 2760
2022 2447 2734
2021 2491 2684
2020 2440 2648
Rating by Year20202021202220232024202527682440YearRatingBulletBlitz

Stats by Year

Year White Black Moves
2025 690W / 607L / 280D 546W / 739L / 275D 93.6
2024 2W / 4L / 0D 2W / 4L / 0D 84.2
2023 6W / 6L / 1D 5W / 6L / 2D 77.3
2022 38W / 39L / 13D 34W / 36L / 16D 93.8
2021 42W / 24L / 12D 29W / 43L / 4D 86.1
2020 192W / 67L / 28D 187W / 84L / 18D 79.2

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
Sicilian Defense: Alapin Variation 566 269 193 104 47.5%
French Defense: Classical Variation, Svenonius Variation 469 185 199 85 39.5%
French Defense: Exchange Variation 300 114 124 62 38.0%
Caro-Kann Defense: Exchange Variation 241 114 85 42 47.3%
Blackburne Shilling Gambit 180 74 77 29 41.1%
French Defense 163 66 65 32 40.5%
French Defense: Advance Variation 156 82 59 15 52.6%
London System: Poisoned Pawn Variation 123 35 70 18 28.5%
QGD: 3.Nc3 Bb4 110 49 51 10 44.5%
Italian Game: Two Knights Defense 81 26 43 12 32.1%
Bullet Opening Games Wins Losses Draws Win Rate
Sicilian Defense: Alapin Variation 48 28 17 3 58.3%
French Defense: Classical Variation, Svenonius Variation 43 24 14 5 55.8%
French Defense 34 20 12 2 58.8%
French Defense: Exchange Variation 31 15 15 1 48.4%
French Defense: Advance Variation 30 19 10 1 63.3%
Czech Defense 24 15 6 3 62.5%
Caro-Kann Defense: Exchange Variation 23 13 7 3 56.5%
Amar Gambit 17 11 6 0 64.7%
Barnes Defense 12 10 2 0 83.3%
Scandinavian Defense 12 5 7 0 41.7%

🔥 Streaks

Streak Longest Current
Winning 49 0
Losing 17 1
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