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| Date | Chess tournament name | Status | ||
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| Date | Players & Opening | Result | ECO | View |
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| Date | Players & Opening | Result | ECO | View |
|---|---|---|---|---|
| 2025.07.04 | Marra,E (2211) vs (2013) Piekarski,A IX SESC Caioba Open Bishop's Opening Berlin |
1/2-1/2 | C24 | |
| 2025.06.29 | Filgueiras,Nathan Felipe (2370) vs (2013) Piekarski,A IX SESC Caioba Open Petrov - Nimzovich |
1-0 | C42 | |
| 2023.07.18 | De Souza,Cristiano Gomes (2018) vs (1992) Piekarski,A Titled Tue 18th Jul Late King's Indian Modern |
1-0 | E94 | |
| 2023.07.18 | Piekarski,A (1992) vs (1980) De Arruda,Leandro Formes Titled Tue 18th Jul Late Queen's Gambit Declined Pillsbury |
0-1 | D53 | |
| 2023.07.18 | Piekarski,A (1992) vs (2142) Santos,Rafael Ventura Dos Titled Tue 18th Jul Late King's Indian Classical - Gligoric |
0-1 | E92 | |
| 2023.07.18 | Korkmaz,N (2066) vs (1992) Piekarski,A Titled Tue 18th Jul Late Sicilian Closed - Zukertort |
1-0 | B23 | |
| 2023.07.18 | Piekarski,A (1992) vs (2271) Rottenwohrer Suarez,Juan Titled Tue 18th Jul Late Queen's Gambit Declined Semi-Pillsbury |
0-1 | D50 | |
| 2023.07.18 | Erzhanov,A (2198) vs (1992) Piekarski,A Titled Tue 18th Jul Late Sicilian - Chekhover |
1-0 | B53 | |
| 2023.07.18 | Montano Vicente,Guadalupe (1809) vs (1992) Piekarski,A Titled Tue 18th Jul Late King's Indian Schwarz (Makogonov) |
0-1 | E71 | |
| 2023.07.18 | Piekarski,A (1992) vs (2206) Kisic,B Titled Tue 18th Jul Late Queen's Gambit Chigorin |
0-1 | D07 | |
| 2023.07.18 | Piekarski,A (1992) vs (2205) Tustanowski,R Titled Tue 18th Jul Late Nimzo-Indian Rubinstein |
1-0 | E41 | |
| 2023.07.18 | Guliev,L (2254) vs (1992) Piekarski,A Titled Tue 18th Jul Late Sicilian Scheveningen Najdorf (Amsterdam) |
1-0 | B93 | |
| 2023.08.06 | Piekarski,A (1992) vs (2206) Tsuboi,E Josino Rezende Mem 2023 Sicilian Barnes (Russian) |
0-1 | B46 | |
| 2023.08.04 | Bookobza,Tomer Lederman (1550) vs (1992) Piekarski,A Josino Rezende Mem 2023 Reti Symmetrical - Spassky |
0-1 | A05 | |
| 2022.04.26 | Piekarski,A (2050) vs (1905) Mirza,Diana Titled Tue 26th Apr Late Indian - Trompowsky |
0-1 | A45 | |
| 2022.04.26 | Petrova,I (2127) vs (2050) Piekarski,A Titled Tue 26th Apr Late Caro-Kann - Advance |
1-0 | B12 | |
| 2022.04.26 | Oro,L (2255) vs (2050) Piekarski,A Titled Tue 26th Apr Late Caro-Kann - Advance |
0-1 | B12 | |
| 2022.04.26 | Piekarski,A (2050) vs (2226) Ricaurte Lopez,J Titled Tue 26th Apr Late Queen's Pawn - Levitsky |
1-0 | D00 | |
| 2022.04.26 | Leschinsky,Gary (1992) vs (2050) Piekarski,A Titled Tue 26th Apr Late Queen's Gambit Accepted Classical - Geller |
1-0 | D27 | |
| 2022.04.26 | Kanyamarala,Trisha (2198) vs (2050) Piekarski,A Titled Tue 26th Apr Late Queen's Gambit Accepted |
1-0 | D20 | |
| 2022.04.26 | Piekarski,A (2050) vs (2271) Kostiukov,A Titled Tue 26th Apr Late Irregular Queen's Pawn - Kotov |
0-1 | A40 | |
| 2022.04.26 | Piekarski,A (2050) vs (2179) Ouellet,Maili-Jade Titled Tue 26th Apr Late Queen's Pawn - Levitsky |
0-1 | D00 | |
| 2022.04.26 | Zhurbinsky,David (1996) vs (2050) Piekarski,A Titled Tue 26th Apr Late Caro-Kann Knight Classical |
1-0 | B19 | |
| 2022.04.26 | Andreikin,D (2729) vs (2050) Piekarski,A Titled Tue 26th Apr Late Caro-Kann - Two Knights (Mindeno) |
1-0 | B11 | |
| 2022.04.26 | Piekarski,A (2050) vs (2306) Suder,Jakub Titled Tue 26th Apr Late Queen's Pawn - Levitsky |
1-0 | D00 | |
| 2022.01.27 | Piekarski,Leonidas Wiecheteck vs Piekarski,Clarice Wiecheteck 8th Floripa Open 2022 Bishop's Opening |
1-0 | C23 | |
| 2022.01.27 | Artero,Artur Hoeldtke vs Piekarski,Flavia V B Wiecheteck 8th Floripa Open 2022 Queen's Pawn Zukertort - London |
1-0 | D02 | |
| 2022.01.26 | Piekarski,A (2032) vs (1805) Vieira,J1 8th Floripa Open 2022 Indian - Trompowsky |
1-0 | A45 | |
| 2022.01.25 | Fonseca,Rogerio da Silva (1201) vs Piekarski,Leonidas Wiecheteck 8th Floripa Open 2022 Reti Zukertort - Tennison |
1-0 | A06 | |
| 2022.01.25 | Piekarski,Flavia V B Wiecheteck vs (1324) Calcada,Henrique Galvan 8th Floripa Open 2022 Sicilian Closed |
0-1 | B23 | |
| 2022.01.25 | Bernardo,Henrique Carvalho (1325) vs Piekarski,Clarice Wiecheteck 8th Floripa Open 2022 King's Knight - Scotch |
1-0 | C44 | |
| 2022.01.25 | Labussiere,Victor (2341) vs (2032) Piekarski,A 8th Floripa Open 2022 Caro-Kann - Advance |
1-0 | B12 | |
| 2022.01.25 | Piekarski,Leonidas Wiecheteck vs (1487) Fantinati,Nilton M. Nascimento 8th Floripa Open 2022 Irregular King's Pawn - St. George |
0-1 | B00 | |
| 2022.01.25 | Fiorindo Pereira,Guilherme (1502) vs Piekarski,Flavia V B Wiecheteck 8th Floripa Open 2022 English Sicilian (Two Knights) |
1-0 | A22 | |
| 2022.01.25 | Piekarski,Clarice Wiecheteck vs (1536) Brambilla,Renee Blandy T. 8th Floripa Open 2022 Sicilian |
0-1 | B30 | |
| 2022.01.30 | Piekarski,Flavia V B Wiecheteck vs Telles,Arnoldo Beber 8th Floripa Open 2022 Sicilian |
0-1 | B50 | |
| 2022.01.30 | Vaz,Vania Dora Madona vs Piekarski,Leonidas Wiecheteck 8th Floripa Open 2022 Two Knights - Modern Bishop |
1-0 | C55 | |
| 2022.01.30 | Piekarski,Clarice Wiecheteck vs (1104) Kim,Andre 8th Floripa Open 2022 Four Knights - Italian |
0-1 | C55 | |
| 2022.01.29 | Piekarski,Leonidas Wiecheteck vs Berteli,Laura Manarim 8th Floripa Open 2022 Pirc |
1-0 | B07 | |
| 2022.01.29 | Piekarski,Clarice Wiecheteck vs Furtado,Ian 8th Floripa Open 2022 Four Knights - Four Knights (Pianissimo) |
1-0 | C50 | |
| 2022.01.29 | Kim,Andre (1104) vs Piekarski,Flavia V B Wiecheteck 8th Floripa Open 2022 Queen's Pawn Zukertort |
1-0 | D02 | |
| 2022.01.29 | Silva,Kaua Marques (2170) vs (2032) Piekarski,A 8th Floripa Open 2022 Caro-Kann - Advance |
0-1 | B12 | |
| 2022.01.29 | Berteli,Laura Manarim vs Piekarski,Clarice Wiecheteck 8th Floripa Open 2022 Reti |
0-1 | A04 | |
| 2022.01.29 | Piekarski,Flavia V B Wiecheteck vs Vaz,Vania Dora Madona 8th Floripa Open 2022 French - Exchange |
1/2-1/2 | C01 | |
| 2022.01.29 | Piekarski,Leonidas Wiecheteck vs Oliveira,Francisco Evandro S. 8th Floripa Open 2022 French - Schlechter |
0-1 | C01 | |
| 2022.01.24 | Borger,David Lupovici (1778) vs Piekarski,Leonidas Wiecheteck 8th Floripa Open 2022 Bishop's Opening Berlin |
1-0 | C24 | |
| 2022.01.24 | Piekarski,Flavia V B Wiecheteck vs (1789) Reinaldo Dos Santos,Julio 8th Floripa Open 2022 Sicilian Closed |
0-1 | B23 | |
| 2022.01.24 | Espindola,Carlos Marcelo (1441) vs (2032) Piekarski,A 8th Floripa Open 2022 Queen's Pawn Zukertort - London |
0-1 | D02 | |
| 2022.01.24 | Vera,C (1795) vs Piekarski,Clarice Wiecheteck 8th Floripa Open 2022 Two Knights |
1-0 | C57 | |
| 2022.01.29 | Piekarski,A (2032) vs (1817) Landre,Geraldo Barbosa 8th Floripa Open 2022 Queen's Pawn - Levitsky |
1-0 | D00 | |
| 2020.09.13 | Luba, L (2212) vs (1868) Piekarski, Lukasz TCh-POL 2nd League 2020 Indian East Indian - Schlechter |
1/2-1/2 | B08 | |
| 2020.09.05 | Bobula, M (2330) vs (1868) Piekarski, Lukasz TCh-POL 2nd League 2020 Gruenfeld |
1-0 | D70 | |
| 2020.09.07 | Niekras, Dawid (2329) vs (1868) Piekarski, Lukasz TCh-POL 2nd League 2020 Pirc Austrian - Dragon |
1/2-1/2 | B09 | |
| 2020.09.10 | Bednarczyk, D (2258) vs (1868) Piekarski, Lukasz TCh-POL 2nd League 2020 Gruenfeld - Nimzovich |
1-0 | E60 | |
| 2020.09.11 | Piekarski, Lukasz (1868) vs (2300) Brozyna, Mateusz TCh-POL 2nd League 2020 King's Knight - Scotch Gambit |
0-1 | C44 | |
| 2020.09.12 | Nowak, Kamil (2317) vs (1868) Piekarski, Lukasz TCh-POL 2nd League 2020 Pirc |
1-0 | B07 | |
| 2020.09.09 | Piekarski, Lukasz (1868) vs (2359) Steczek, M TCh-POL 2nd League 2020 Alekhine Modern |
0-1 | B05 | |
| 2011.02.26 | Piekarski, A. (2049) vs Da Silva, Marcos An TCh-Paulista Reti Symmetrical - King's Fianchetto |
0-1 | A15 | |
| 2011.02.26 | Bispo, L. (2202) vs (2049) Piekarski, A. TCh-Paulista Slav Two Knights - Chameleon |
1-0 | D11 | |
| 2011.02.27 | Piekarski, A. (2049) vs (2380) Correa, Aro TCh-Paulista Reti |
0-1 | A04 | |
| 2011.02.27 | Hernandez, Luis Ant vs (2049) Piekarski, A. TCh-Paulista Irregular Queen's Pawn - Classical Exchange |
1/2-1/2 | D10 |