Avatar of Konstantin Semianiuk

Konstantin Semianiuk NM

Username: Kostya26

Location: Toronto

Playing Since: 2013-08-21 (Active)

Wow Factor: ♟♟♟♟♟♟

Chess.com

Daily: 400
1W / 0L / 0D
Rapid: 2250
7W / 0L / 0D
Blitz: 2374
894W / 860L / 162D
Bullet: 2606
9661W / 9545L / 1340D

Konstantin Semianiuk (Kostya26)

Known in the chess realms as Kostya26, Konstantin Semianiuk is a National Master who has been conquering the 64 squares with a blend of tactical genius and relentless determination. Holding the prestigious title of National Master, Konstantin’s journey is nothing short of a rollercoaster through bullet storms, blitz battles, and rapid-fire chess duels.

A Quick Walk Through the Chessboard of Life

Since 2013, Konstantin has blitzed and bullet-charged through thousands of games, boasting peak ratings soaring to an impressive 2701 in bullet chess and 2568 in blitz — making him the unofficial mayor of time trouble. When others falter and resign early, Kostya26 rarely admits defeat, with an amazingly low early resignation rate of 1.47%, because giving up is just not in his vocabulary.

Playing Style & Key Strengths

  • Calculated Endgame Maestro: Konstantin thrives in prolonged battles, engaging in endgames 82% of the time, proving patience is his secret weapon.
  • Tactical Comeback King: Boasting a comeback rate of 86%, he turns disadvantages into dazzling victories, making fans wonder if he moonlights as a magician.
  • Averaging 80 moves per win: He’s not just about quick kills—expect a tactical marathon with Kostya26.
  • Favored Opening – The London System: Perhaps inspired by the foggy streets, this opening yields a 51% win rate in bullet chess. Not far behind is the Sicilian Defense, a classic battleground where he likes to cause chaos.

Time Travel on the Board

Konstantin performs best in the morning hours, with 8 AM crowned as his ideal time to strike. Saturdays and Mondays are his lucky days, delivering near-50% win rates—proving that chess and weekend vibes go hand in hand.

Notable Stats & Records

  • Longest winning streak: a jaw-dropping 21 games.
  • Currently on a winning streak, showing that momentum is his middle name.
  • Known for biting time pressure, with more wins gained by checkmate than by resignation against opponents running low on clock.

Recent Gladiator Moments

In his latest conquest on May 29, 2025, Konstantin played Black in a Slav Defense, winning on time against a strong opponent rated 2376. His tactical acumen shone with a well-timed king-side attack and precise rook maneuvers. Not one to back down, he also recently delivered a checkmate in a Modern Defense battle just hours earlier and continues to prove that every move counts—even under fierce pressure.

Off the Board

Konstantin's gaming alias, Kostya26, has become a force online, accumulating thousands of wins across bullet, blitz, rapid, and daily chess — often accompanied by a few more hair-raising losses than your average player (hey, no risk, no reward!). Known to be tough against long-time rivals like "snowflake" and sporting a near-perfect record against a few unlucky foes, he blends seriousness with the occasional cheeky move, ensuring spectators never know whether to relax or hold their breath.

Konstantin Semianiuk: navigating the battlefield of sixty-four squares, blazing through clocks, and reminding everyone that chess is as much about resilience and wit as it is about the pieces on the board.


Coach's Avatar

Positive Elements in Your Play

Konstantin, your recent rapid games show several encouraging strengths worth highlighting:

  • You have maintained a 100% win record in your recent games, demonstrating strong consistency and an ability to capitalize on your opportunities.
  • Your opening choice variety is excellent, successfully playing different systems such as the Sicilian Defense: Closed, Scotch Game, and Colle System. This gives you a flexible repertoire against various opponents.
  • You showed good attacking instincts and tactical awareness in your games, successfully launching effective attacks, some even leading to early checkmate threats.
  • Your ability to convert advantages is evident from your wins by checkmate or opponent resignation, suggesting sound endgame technique and pressure building.

Areas for Improvement

To continue your progress and move beyond your current plateau, consider focusing on these areas:

  • Opening Understanding: While your win rate in your chosen openings is excellent, deepen your theoretical knowledge in those lines. Studying common plans and typical pawn structures can help you navigate complex middlegame positions confidently.
  • Time Management: In rapid games, effective clock usage is crucial. Although your wins show good decision-making, try to avoid spending too much time early — maintaining a steady pace allows for more thoughtful decisions in critical moments.
  • Middle Game Strategy: Review your games to identify if you can improve in long-term planning and positional play. Seek to enhance your evaluation of when to trade pieces, how to improve your piece coordination, and control of key squares.
  • Handling Stronger Opposition: Your current record is unbeaten, but as you face increasingly tough opponents, develop resilience in tougher positions and defensive skills to avoid blunders.

Next Steps for Your Improvement

To elevate your play further, consider implementing these practical steps:

  • Regularly analyze your wins to understand why you succeeded and how your opponent erred, reinforcing good habits.
  • Incorporate tactical puzzles and positional exercises to sharpen your calculation and strategic evaluation.
  • Explore deeper into your favorite openings using trusted resources to understand key ideas beyond the moves.
  • Play slow classical games alongside rapid ones to practice deeper thinking and improve your patience.
  • Review games against higher-rated players to identify specific challenges you face and work on them.

Summary

Konstantin, your recent winning streak and diverse opening choices are great foundations. Raising your game with focused study on strategic concepts and time management will help solidify your strength and prepare you for tougher challenges. Keep practicing thoughtfully and stay curious — each game is an opportunity to learn and grow as a player!

Good luck, and happy chess!



🆚 Opponent Insights

Recent Opponents
allexo 19W / 13L / 2D
antoniocordero2001 10W / 6L / 0D
morra_pirate 3W / 2L / 1D
Niji183 0W / 1L / 0D
karimmedwar 0W / 1L / 1D
chillooout 2W / 0L / 0D
lepolatupukki 0W / 1L / 0D
turnuphater 6W / 4L / 0D
drabmajor 6W / 2L / 0D
risingking1 0W / 1L / 0D
Most Played Opponents
Snowflake 211W / 172L / 16D
No Whining — No Complaining Winquitters like to say Easy 73W / 91L / 5D
whatupy0dog 77W / 45L / 11D
canwedoit 31W / 80L / 2D
profifv 73W / 31L / 9D

Rating

Year Bullet Blitz Rapid Daily
2025 2613 2374
2024 2363 2390
2023 2462 2423
2022 2469 2455
2021 2489 2432 2250
2020 2503 2464 2250
2019 2189 2123
2018 2323 2175 800
2016 2086
2014 2070
2013 2139
Rating by Year2013201420162018201920202021202220232024202526132070YearRatingBulletBlitzRapid

Stats by Year

Year White Black Moves
2025 796W / 592L / 106D 718W / 656L / 120D 84.0
2024 109W / 132L / 17D 105W / 129L / 23D 81.5
2023 168W / 187L / 30D 140W / 221L / 33D 77.9
2022 98W / 118L / 17D 95W / 115L / 16D 78.6
2021 1233W / 1269L / 118D 1217W / 1278L / 135D 76.6
2020 1991W / 1666L / 319D 1870W / 1782L / 299D 82.8
2019 273W / 290L / 33D 249W / 319L / 39D 80.9
2018 753W / 782L / 102D 673W / 826L / 94D 82.4
2016 3W / 3L / 0D 5W / 1L / 0D 81.8
2014 0W / 2L / 0D 0W / 1L / 0D 91.7
2013 49W / 28L / 3D 52W / 29L / 1D 78.1

Openings: Most Played

Bullet Opening Games Wins Losses Draws Win Rate
London System: Poisoned Pawn Variation 1890 939 819 132 49.7%
Nimzo-Larsen Attack 1532 748 698 86 48.8%
Sicilian Defense: Accelerated Dragon 960 485 414 61 50.5%
Sicilian Defense: Closed 933 400 458 75 42.9%
East Indian Defense 781 368 369 44 47.1%
Amar Gambit 728 325 358 45 44.6%
Australian Defense 714 367 309 38 51.4%
Colle System: Rhamphorhynchus Variation 701 323 335 43 46.1%
Döry Defense 630 306 271 53 48.6%
Nimzo-Larsen Attack: Classical Variation 493 233 239 21 47.3%
Blitz Opening Games Wins Losses Draws Win Rate
London System: Poisoned Pawn Variation 173 84 73 16 48.5%
Sicilian Defense: Accelerated Dragon 153 71 70 12 46.4%
Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation 124 67 52 5 54.0%
Sicilian Defense: Closed 83 31 45 7 37.4%
Döry Defense 72 22 40 10 30.6%
Scotch Game 70 31 30 9 44.3%
East Indian Defense 70 37 29 4 52.9%
Caro-Kann Defense: Exchange Variation 63 32 27 4 50.8%
Sicilian Defense: Moscow Variation 63 40 15 8 63.5%
Sicilian Defense: Alapin Variation 54 28 24 2 51.9%
Rapid Opening Games Wins Losses Draws Win Rate
Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line 1 1 0 0 100.0%
Unknown 1 1 0 0 100.0%
QGD: 3.Nc3 Nf6 4.e3 1 1 0 0 100.0%
Dresden Opening: The Goblin 1 1 0 0 100.0%
Colle: 3...Bf5, Alekhine Variation 1 1 0 0 100.0%
Scotch Game 1 1 0 0 100.0%
Sicilian Defense: Closed 1 1 0 0 100.0%
Daily Opening Games Wins Losses Draws Win Rate
Sicilian Defense 1 1 0 0 100.0%

🔥 Streaks

Streak Longest Current
Winning 21 0
Losing 16 0