Player profile

Renn, Grzegorz

Standard: 1635 Rapid: 1597 Blitz: 1612 (last updated 2026-10-02)

FIDE ID: 21012890 (view FIDE profile)

Federation: POL Sex: M Birth Year: 2009 Age: 17

Title: — Women's title: — Other title: — FOA title: —

Games: 2 Wins: 1 (50%) Draws: 0 (0%) Losses: 1 (50%)

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Dossier

2 of 2 games analyzed.

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Openings

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As White 0 games 0W 0D 0L

No games as White in this range.

As Black 2 games 1W 0D 1L

Nimzo-Larsen Attack 1 game 1W 0D 0L

Symmetrical Variation 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Queen's Pawn Game 1 game 0W 0D 1L

London System 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Blunders Top 4 of 9

This player's costliest moves in analyzed games. Can you find the winning move?

2026.06.03 · 27... Rc2 (−47.5% win chance) 1-0

Renn, Grzegorz

Szerffel, Krzysztof

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2026.06.06 · 48... Kg8 (−42.3% win chance) 0-1

Renn, Grzegorz

Piskun, Ivan

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2026.06.06 · 49... Kf8 (−41.9% win chance) 0-1

Renn, Grzegorz

Piskun, Ivan

Engine View game

2026.06.06 · 44... e5 (−32.8% win chance) 0-1

Renn, Grzegorz

Piskun, Ivan

Engine View game

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Games Showing all 2 games

Date	Event	Round	Color	Opponent	Result	Accuracy %	First moves
2026.06.06	Zenera_Mistrzostwa_Polski_Amatorow_w_Szachach_Szybkich_do_1600_FIDE	4.7		2026.06.06 Piskun, Ivan (545090068)	1	77.30%	1. b3 b6 2. Bb2 Bb7 3. c4 c5
2026.06.03	Zenera_Mistrzostwa_Polski_Amatorow_w_Szachach_Szybkich_do_1600_FIDE	5.1		2026.06.03 Szerffel, Krzysztof (21804478) (1599)	0	76.00%	1. d4 d5 2. Nf3 Nf6 3. Bf4 Bf5