Avatar of Olga Sikorova

Olga Sikorova WGM

Username: OlifantCZ

Location: Třinec

Playing Since: 2013-12-25 (Active)

Wow Factor: ♟♟♟♟♟♟

Chess.com

Daily: 1975
136W / 35L / 24D
Rapid: 2101
63W / 31L / 13D
Blitz: 2454
3762W / 3366L / 465D
Bullet: 2260
844W / 623L / 91D

Olga Sikorova - Woman Grandmaster

Known in the chess world by her username OlifantCZ, Olga Sikorova is a formidable Woman Grandmaster who has dazzled on the board with a blend of tactical awareness and gritty determination. While she might not always win by speed (though her blistering bullet peaks at an impressive 2340!), she more than makes up for it with strategic depth and resilience. With a peak blitz rating soaring to 2425, Olga commands respect in the faster-paced formats, showing a win rate just shy of fifty percent over thousands of games, proving she’s no stranger to both victory and the occasional humbling moment.

Playing Style & Strengths

Olga’s style? Let’s just say she’s the kind of player who refuses to throw in the towel early, boasting a comeback rate nearing 87%. Her opening repertoire is a mystery wrapped in a Top Secret defense for blitz, but she is also known for favoring the English Opening and various sharp French Defense variations. Despite the occasional loss splattered throughout her career, Olga’s perseverance is clearly her superpower with an average game length of about 76 moves, indicating she loves a good fight to the bitter end.

A Legend in Time

Olga has been active and climbing since at least 2013 in blitz, peaking in several time controls over the years, including rapid (peak 2319) and daily chess, where she even cracked the 2000+ rating barrier. Her enthusiasm for bullet chess ignited in the mid-2010s and has set the bar with a solid set of wins and a cool-headed approach to high-pressure clashes. When asked about her best time to play, midnight strikes her fancy — perhaps the chessboard at that hour sparks a +100% win rate in her mind, or maybe it’s the thrill of late-night moves and caffeinated brilliance.

Recent Battles

In her latest live games, OlifantCZ has shown her grit, stamping victories with commanding checkmates and sharp tactical pushes, while also taking her share of losses in hard-fought duels. Her most recent win featured a dynamic Queen sacrifice against MKAPHO6206, outmaneuvering the opponent with style and precision. Even when the clock ticks away, Olga’s no stranger to winning on time — a skill that brings a bit of cheeky humor to her competitive edge. After all, what’s chess if you can’t keep your opponents on the edge of their seats?

Fun Facts

  • Longest winning streak: 21 games — who says queens aren’t fierce?
  • Current winning streak: 3 games — watch out for her next rampage!
  • White pieces success rate: a respectable 54.88%, proving she likes to own the spotlight.
  • Never afraid to take risks, she has a less-than-1% rate of one-sided losses, much like a stealthy knight jumping out of nowhere.

Whether playing blitz, bullet, rapid, or daily chess, Olga Sikorova remains a force to reckon with — a fierce competitor drawing inspiration from every move and perhaps a dash of midnight magic.


Coach Chesswick's Profile Photo
Coach Chesswick

Hi Olga!

You have played a healthy mix of 120 + 1 and 180 sec rapid games during the last week, mostly against 2200–2350 opposition. Your overall trend is positive (see the small peak marker below), but the score sheet shows a few recurring patterns that we can polish.

Current personal best:

Your main strengths

  • Kingside initiative & rook lifts. In several wins you manoeuvred a rook to f3/h3/f6 with devastating effect.
  • Flexibility in the English. You comfortably switch between positional setups (d3–e4) and aggressive f- and g-pawn storms.
  • Tactical alertness. Exchanges such as 22 Rxf6⁺ (diagram below) or 13 Nc6–e4 → Nd2-f4 ideas with Black show good pattern recognition.

Key areas to improve

1 Time management

Five of your last eight losses were flagged positions, often in won or holdable endgames. The quality of your moves is usually good enough—so the low-hanging fruit is to distribute your thinking time better:

  • Use the increment right from move 1: aim to stay above the starting clock for the first 10–12 moves.
  • Set two “soft” checkpoints: ~40 sec left on move 20 and ~20 sec on move 30. Abort any deep calculation when you reach them.
  • Practise forcing-move scans (CCT) against the 15-sec shot clock until they become automatic.

2 Over-extension in the English structure

Your signature plan with c4 g3 Bg2 Nc3 e4 f4 g4 is powerful if the centre is firmly closed. In two losses against queenkaliya Black hit back with …c5 or …e5 before you completed development, leaving weak squares on d4/f4. Try one of these tweaks:

  • Insert d3 on move 4/5 to keep e4 guarded.
  • Delay f4–f5 until your queen’s rook is connected.
  • Add an “anti-…e5” line to your notes (diagrammatic memory works best—copy critical positions into your notebook).

3 End-game technique

The marathon versus kingrossi reached a knight-and-pawn ending that was still drawable on move 65. Two study themes will pay off:

  • King activity vs passed pawns. Play out K+N vs K+2 pawns drills against an engine.
  • Lucena & Philidor. Revise these rook-endgame cornerstones; three of your flagged losses simplified into exactly those positions.

Opening corner

With White

The English/Anglo-Indian setup scored 4/5. Keep it—but prepare a non-fianchetto back-up (e.g. 1 c4 c5 2 Nf3 Nf6 3 d4!) for opponents who mirror you.

With Black

You mixed the East-Indian and French Tarrasch. Results are fine, but two problems emerged:

  1. A loose queen trip (…Qd8–b6/c7) allowed Nc6-b5 forks in two games.
  2. Long-term light-square holes after …g6, …d6 without …c6.

Quick repair: add the prophylactic moves …h6 (against Bg5 pins) and …a5 (vs Qa4 & Nb5 motifs) to your Indian move-order notes.

Illustrative moments

Converting the initiative (win vs. queenkaliya)
Flagged in a drawn rook ending (loss on time)

Training plan (next 14 days)

  1. 10 min tactics every day (theme: “zwischenzug & overload”).
  2. 3 rook endings from Nunn’s manual, play vs engine until you hold the draw with 15 sec/move.
  3. Opening micro-prep: build a 20-move file vs 1 c4 c5 mirroring lines; cement with two sparring games.
  4. Clock discipline drill: play three 3 min + 2 blitz games where you must move inside 10 sec for the first 15 moves.

When to schedule rated games

Your best conversion rate is clustered around late evening—see

01234567891011121314151617181920212223100%0%Hour of Day
and
FridayMondaySaturdaySundayThursdayTuesdayWednesday100%0%Day
. Stick to those slots for important challenges and use off-peak hours for experimentation.

Final thought

Your attacking flair is a real asset—sharpen the practical skills around it (time, defence, endgames) and you will comfortably break the next rating barrier. Happy hunting, Olga!



🆚 Opponent Insights

Recent Opponents
greenchessangel 2W / 1L / 0D View
finndanis 0W / 1L / 0D View
Ariel Crawford 1W / 4L / 1D View
dennistheviking 0W / 1L / 0D View
chess_player_est 0W / 0L / 2D View
normalentip 1W / 0L / 0D View
c9_trap 2W / 1L / 0D View
chessiosaurus 2W / 1L / 1D View
Marko Pavlovic 5W / 2L / 1D View
tc58 2W / 1L / 0D View
Most Played Opponents
cdgrzes 12W / 6L / 4D View Games
fetenn 16W / 4L / 2D View Games
delax001 9W / 12L / 0D View Games
michael nevrotzki 11W / 8L / 2D View Games
Dusko Zmijanac 10W / 9L / 0D View Games

Rating

Year Bullet Blitz Rapid Daily
2025 2273 2473 2101 1975
2024 2136 2230 2061 1825
2023 2105 2260 2069 1860
2022 2164 2325 2146
2021 2212 2264 2193 1580
2020 2340 2304 2255 852
2019 2208
2018 2162
2017 2061
2016 2154 2174
2015 1678 2023
2014 2050
2013 1897
Rating by Year20132014201520162017201820192020202120222023202420252473852YearRatingBulletBlitzRapidDaily

Stats by Year

Year White Black Moves
2025 216W / 178L / 35D 206W / 187L / 38D 79.3
2024 231W / 131L / 36D 200W / 174L / 19D 80.4
2023 194W / 121L / 18D 175W / 134L / 22D 79.0
2022 277W / 194L / 30D 234W / 238L / 27D 79.1
2021 362W / 267L / 39D 340W / 287L / 44D 78.1
2020 238W / 177L / 33D 221W / 213L / 31D 79.3
2019 245W / 174L / 25D 202W / 226L / 26D 78.7
2018 233W / 168L / 15D 192W / 199L / 18D 79.4
2017 235W / 183L / 21D 204W / 211L / 26D 77.8
2016 136W / 94L / 18D 135W / 99L / 16D 77.0
2015 85W / 73L / 18D 67W / 98L / 12D 75.2
2014 147W / 122L / 12D 120W / 140L / 20D 79.6
2013 11W / 0L / 0D 11W / 1L / 0D 81.4

Openings: Most Played

Blitz Opening Games Wins Losses Draws Win Rate
English Opening: Agincourt Defense 425 233 166 26 54.8%
English Opening: Anglo-Indian Defense 394 203 167 24 51.5%
French Defense 335 155 161 19 46.3%
French Defense: Winawer Variation, Advance Variation 325 135 171 19 41.5%
English Opening 324 166 136 22 51.2%
English Opening: Drill Variation 321 169 138 14 52.6%
French Defense: Tarrasch Variation, Chistyakov Defense 296 118 152 26 39.9%
French Defense: Exchange Variation 293 126 139 28 43.0%
English Opening: Symmetrical Variation, Botvinnik System 290 156 117 17 53.8%
French Defense: Advance Variation 260 128 124 8 49.2%
Bullet Opening Games Wins Losses Draws Win Rate
English Opening 99 53 37 9 53.5%
English Opening: Anglo-Indian Defense 88 44 35 9 50.0%
English Opening: Agincourt Defense 78 44 27 7 56.4%
English Opening: Drill Variation 72 41 28 3 56.9%
French Defense 70 43 25 2 61.4%
English Opening: Symmetrical Variation, Botvinnik System 59 34 22 3 57.6%
English Opening: Caro-Kann Defensive System 56 35 21 0 62.5%
Modern 55 29 23 3 52.7%
English: Bled Variation 50 33 13 4 66.0%
English Opening: Closed, Taimanov Variation 48 23 22 3 47.9%
Daily Opening Games Wins Losses Draws Win Rate
Amar Gambit 35 27 7 1 77.1%
English Opening: Drill Variation 30 22 7 1 73.3%
Nimzo-Larsen Attack 25 20 4 1 80.0%
Australian Defense 16 13 3 0 81.2%
English Opening 15 10 2 3 66.7%
French Defense 12 7 2 3 58.3%
French Defense: Exchange Variation 11 8 3 0 72.7%
English Opening: Agincourt Defense 11 6 2 3 54.5%
English Opening: Anglo-Indian Defense 11 9 1 1 81.8%
French Defense: Tarrasch Variation, Chistyakov Defense 11 4 5 2 36.4%

🔥 Streaks

Streak Longest Current
Winning 21 1
Losing 12 0
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