Kirill Stupak (aka S2PAc) – Grandmaster Extraordinaire
Kirill Stupak, known to many simply as S2PAc, is a titanic figure in the chess world, holding the prestigious title of Grandmaster awarded by FIDE. With a flair for blitz, bullet, and rapid chess, Kirill has maneuvered through thousands of games, showcasing not only brilliant strategy but also some admirable resilience.
Rise Through the Ranks
Kirill’s journey is a rollercoaster of ratings – starting from humble beginnings with a blitz rating of 983 in mid-2018 to peaking impressively at 2946 in blitz by early 2020. Bullet fans rejoice since Kirill hit a peak bullet rating of 2928 almost simultaneously – truly a dual-threat when the clock is ticking down.
Rapid games aren’t left out either, with a peak rating crossing 2561 in 2025, proving Kirill’s adaptability across all time controls.
Playing Style and Psychological Mastery
With an average of 81 moves per win and a gritty endgame frequency over 83%, Kirill doesn’t just rush to finish but grinds out victories that would make even grandmasters envious. A comeback rate above 87% reveals a player who is never truly out, even when losing material or position. Psychological strength is evident, with a tilt factor on the lower side and a uniquely high win rate playing at 8 AM – maybe Kirill drinks some magical morning elixir?
Notable Stats and Quirks
- Win/Loss Record: Over 1000 blitz wins and almost 600 bullet wins to his name.
- Longest Winning Streak: A staggering 27 straight wins – talk about putting the pressure on your opponents!
- Whites to Blacks win rate: 53% with white vs. 47% with black – showing a slight preference for seizing the initiative.
- Favorite Openings: Since Kirill's opening strategies are "Top Secret," expect the unexpected, but a fondness for the Indian Game variants shines through.
The Most Recent Chess Battles
In May 2025, Kirill dazzled the chess community by executing a deadly checkmate against opponent gp9isback23 in a game showcasing classic positional build-up followed by tactical fireworks in the endgame. The victory was no fluke – Kirill's relentless pursuit and tactical sharpness left no room for mercy.
Even when defeated (it happens to the best of us), Kirill’s games are lessons in resilience and complexity, often battling titans close to the rating ceiling 2900+.
Off the Board
Legend has it Kirill sometimes sleeps with a chessboard under the pillow. Whether true or not, the data echoes a passion that transcends mere competition. A Grandmaster who embodies the spirit of chess: strategic, relentless, and sometimes a bit mysterious.
So, next time you face S2PAc, remember – you’re not just battling pieces; you’re clashing against a chess tempest that has stormed through thousands of games, always coming out stronger.
Quick summary
Nice work — your recent games show strong tactical vision and reliable conversion in favorable positions. The win vs dancing_ra1n in the Caro‑Kann demonstrates good pattern recognition around queen/king tactics and simplifying into a winning ending. Your loss in the French Advance highlights recurring structural and coordination issues to tidy up. Below are targeted, practical steps to keep the positives and fix the gaps.
Recent games I reviewed
Games checked (high-level notes):
- Win (2025-03-19) vs dancing_ra1n — Caro‑Kann (Advance). You handled tactical complications well, exchanged into a winning sequence and finished confidently. See the key sequence below:
- Loss (2025-03-19) vs dancing_ra1n — French Advance. You ended up with structural weaknesses (advanced c-/f-pawns and backward squares) and allowed the opponent to open lines at the right time.
- Earlier wins (2024, 2022) — strong in tactics and attacking play, especially vs kingside weaknesses and when creating passed pawns/queens.
What you’re doing well
- Strong tactical vision — you spot winning combinations and tactical shots reliably (many quick conversions to wins).
- Conversion ability — good at simplifying when ahead (trading down into winning endgames or winning material).
- Opening results are excellent in several lines (notably Caro-Kann Defense at 100% in your sample and high win rates in the London/Czech/Catalan lines).
- Good endgame awareness — you know how to push passed pawns and use queening threats (seen in prior games with promotions and decisive rook/queen activity).
- Generally high practical scoring (Strength Adjusted Win Rate ~0.546) — you get results against a range of opponents.
Key areas to improve
- Pawn structure and timing of pawn pushes — examples: early f‑pawn or c‑pawn advances (in the French loss) created weak squares and targets. Before advancing a pawn, check whether your king and pieces are safe and whether the advance creates holes.
- Coordination in closed/locked positions — sometimes a single side pawn break (or lack of it) decides who gets active pieces. Improve plans for opening lines when you need them and avoid creating isolated/doubled pawns without compensation.
- King safety and piece activity when you play the French/Advance setups — the Advance can leave you with overextended pawns; watch for counterplay on the flank and central breaks.
- Prophylaxis and anticipating opponent counterplay — ask “what does my opponent want?” on each move so you aren’t surprised by freeing moves or tactical intermezzi (example: exchanges leading to an opponent activating a queen or knight unexpectedly).
Concrete drills and study plan (4‑week focused)
Short, daily routines to fix the issues and amplify strengths:
- Daily tactics: 15–20 focused puzzles (spotting queen forks, intermezzo and discovered checks). Prioritize puzzles that arise from openings you play.
- Pawn-structure studies: 3× per week, 20–30 minutes — study typical pawn breaks and resulting plans in the French Defense: Advance Variation and the Caro-Kann Defense. Use model games from strong players in those systems.
- Targeted opening work (3 short sessions/week): pick your main reply choices and learn one reliable plan per line (plans for both sides). Keep a 1‑page cheat sheet of typical piece setups and common tactical motifs for each line.
- Post‑mortem habit: after each loss or close game, annotate the first 10 moves and the critical 5 positions. Note "Why did I play that?" and "What did my opponent threaten?" — do this within 24 hours while the memory is fresh.
- Practical play: 10 rapid training games (15+10 or 10+5) where you deliberately focus on one theme — e.g., “no early f‑push without development” — then review the results.
Drill examples you can start right away
- Set tactic trainer to enforce “queen tactics only” for 20 problems — builds the pattern recognition that won you the Caro‑Kann game.
- Take the French Advance: play 5 training games as Black where you refuse to push f early — force yourself to complete development first. After each game, mark the moment where a different plan would have improved structure.
- Endgame mini‑session: 10 rook+minor vs rook endgames and queen vs rook endgames — you’ve shown capacity to convert; make the technique bulletproof.
Next session checklist (before you play)
- 5 minutes: review your 1‑page opening sheet for the line you expect to meet.
- 5 minutes: 5 quick tactic puzzles (warm up pattern recognition).
- Set a single in-game goal (example: “avoid creating isolated pawns” or “don’t move the f‑pawn until king is castled”).
Offer — how I can help next
If you want, I can:
- Annotate one of these games move‑by‑move with short comments and alternative plans.
- Create a 4‑week personalized training calendar based on your available time.
- Prepare a one‑page openings cheat sheet for your favorite defenses (French Advance, Caro‑Kann lines you use).
Tell me which of the three you want first and I’ll prepare it.
🆚 Opponent Insights
| Recent Opponents | ||
|---|---|---|
| javicio | 0W / 1L / 0D | View |
| yueyangshan | 0W / 0L / 1D | View |
| Georgios Ketzetzis | 0W / 1L / 0D | View |
| Dmitry MIschuk | 2W / 0L / 0D | View |
| melonkholia | 1W / 0L / 0D | View |
| Psych0Cookie | 0W / 1L / 0D | View |
| Ruslan Gadzhiev | 2W / 0L / 0D | View |
| Jan Vykouk | 1W / 1L / 0D | View |
| Ruben Felgaer | 0W / 0L / 1D | View |
| Seo Jungmin | 1W / 1L / 0D | View |
| Most Played Opponents | ||
|---|---|---|
| Fidel Corrales Jimenez | 39W / 30L / 0D | View Games |
| Sergey Drygalov | 27W / 30L / 2D | View Games |
| Abdulla Gadimbayli | 25W / 25L / 7D | View Games |
| luoxiaoke100 | 20W / 28L / 4D | View Games |
| Dmitrij Kollars | 20W / 18L / 6D | View Games |
Rating
| Year | Bullet | Blitz | Rapid | Daily |
|---|---|---|---|---|
| 2025 | 2876 | 2909 | 2561 | |
| 2024 | 2875 | 2876 | 2561 | |
| 2023 | 2776 | |||
| 2022 | 2871 | 2840 | 2561 | |
| 2021 | 2887 | 2790 | 2552 | |
| 2020 | 2928 | 2830 | 2387 | |
| 2019 | 2727 | 2882 | ||
| 2018 | 2658 | 2870 |
Stats by Year
| Year | White | Black | Moves |
|---|---|---|---|
| 2025 | 10W / 5L / 3D | 10W / 8L / 2D | 93.2 |
| 2024 | 31W / 11L / 7D | 20W / 19L / 7D | 85.8 |
| 2023 | 5W / 3L / 2D | 3W / 8L / 0D | 88.5 |
| 2022 | 28W / 14L / 5D | 26W / 19L / 1D | 81.3 |
| 2021 | 58W / 18L / 14D | 41W / 28L / 14D | 83.6 |
| 2020 | 274W / 205L / 62D | 256W / 235L / 40D | 87.0 |
| 2019 | 229W / 209L / 51D | 194W / 263L / 41D | 84.9 |
| 2018 | 262W / 144L / 37D | 238W / 175L / 33D | 82.1 |
Openings: Most Played
| Bullet Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Döry Defense | 69 | 36 | 25 | 8 | 52.2% |
| Amar Gambit | 64 | 30 | 32 | 2 | 46.9% |
| Australian Defense | 58 | 27 | 27 | 4 | 46.5% |
| Czech Defense | 51 | 30 | 20 | 1 | 58.8% |
| London System: Poisoned Pawn Variation | 48 | 24 | 17 | 7 | 50.0% |
| Hungarian Opening: Wiedenhagen-Beta Gambit | 44 | 25 | 17 | 2 | 56.8% |
| Modern | 44 | 21 | 22 | 1 | 47.7% |
| Grünfeld Defense: Counterthrust Variation | 43 | 24 | 14 | 5 | 55.8% |
| Amazon Attack: Siberian Attack | 41 | 16 | 19 | 6 | 39.0% |
| Caro-Kann Defense | 40 | 17 | 20 | 3 | 42.5% |
| Blitz Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| London System: Poisoned Pawn Variation | 144 | 78 | 49 | 17 | 54.2% |
| Döry Defense | 140 | 75 | 54 | 11 | 53.6% |
| Czech Defense | 126 | 62 | 43 | 21 | 49.2% |
| Caro-Kann Defense | 107 | 58 | 44 | 5 | 54.2% |
| Amazon Attack: Siberian Attack | 81 | 44 | 26 | 11 | 54.3% |
| Benoni Defense: Modern Variation | 72 | 39 | 33 | 0 | 54.2% |
| Slav Defense: Bonet Gambit | 70 | 29 | 31 | 10 | 41.4% |
| Grünfeld Defense: Counterthrust Variation | 66 | 33 | 27 | 6 | 50.0% |
| French Defense: Classical Variation, Svenonius Variation | 64 | 27 | 27 | 10 | 42.2% |
| Hungarian Opening: Wiedenhagen-Beta Gambit | 55 | 24 | 26 | 5 | 43.6% |
| Rapid Opening | Games | Wins | Losses | Draws | Win Rate |
|---|---|---|---|---|---|
| Czech Defense | 15 | 11 | 2 | 2 | 73.3% |
| London System: Poisoned Pawn Variation | 10 | 8 | 1 | 1 | 80.0% |
| Caro-Kann Defense | 6 | 6 | 0 | 0 | 100.0% |
| Döry Defense | 5 | 3 | 0 | 2 | 60.0% |
| Catalan Opening: Closed | 5 | 4 | 0 | 1 | 80.0% |
| Amazon Attack: Siberian Attack | 4 | 2 | 1 | 1 | 50.0% |
| French Defense: Tarrasch Variation, Open System, Main Line | 4 | 1 | 1 | 2 | 25.0% |
| Caro-Kann Defense: Two Knights Attack, Mindeno Variation | 4 | 2 | 1 | 1 | 50.0% |
| French Defense: Advance Variation | 3 | 0 | 1 | 2 | 0.0% |
| French Defense: Exchange Variation | 3 | 1 | 0 | 2 | 33.3% |
🔥 Streaks
| Streak | Longest | Current |
|---|---|---|
| Winning | 27 | 0 |
| Losing | 10 | 1 |