CChessStats

Otwarte Mistrzostwa Koszalina w szachach klasycznych 2026 - OPEN B

Open SwissStandard

20 players participated in this 7-round tournament, held from 03 Jan 2026 to 05 Jan 2026 in Koszalin, Poland. Top 10 Elo average was 1536, and top seed was Elena Dybowska (🇵🇱 POL, 1597).

Adam Szczygielski (🇵🇱 POL, 1564) won with 6.0/7, ahead of Milosz Duda (5.5) and Jan Czubek (5.0). Szczygielski won solo starting round 4.

The biggest upset came in round 1: Zbigniew Cieslukowski (1406) beat Maurycy Gniadek (1559), a +153-point gap.

Location
🇵🇱Koszalin, Poland
Dates
03 Jan 2026 → 05 Jan 2026
Time control
Standard: 30 minutes for game with 30 seconds increment from move 1
System
Swiss · 7 rounds
Top seed
🇵🇱Elena Dybowska1597
Avg top 10
1,536
Participants
20
Federations · 1 represented
🇵🇱Poland×20
Top 3

How it unfolded

Top 6 · 7 rounds

Adam Szczygielski led from R4; +0.5-point edge over the runner-up.

Co-leaders
7
3
2
1
1
1
1
23.55.57R1R2R3R4R5R6R7
Szczygielski6Duda5.5Czubek5Cieslukowski4.5Kiecana4.5Plominski4.5
R4–R7 · LEAD HELD

Adam Szczygielski held the sole lead from R4 through R7 without losing it.

R7 · HEAD-TO-HEAD · WINNER VS 2ND

Adam Szczygielski lost to Milosz Duda (Black).

WIN STREAKS · 3 top finishers

Adam Szczygielski 6 wins (R1–R6)Milosz Duda 3 wins (R5–R7)Jan Czubek 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Adam Szczygielski*
0
—
1
2Milosz Duda
1
*
1
—
3Jan Czubek—
0
*
1
4Olgierd Cieslukowski
0
—
0
*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6R7PtsBu C1BuSBPerfΔ
1Szczygielski, Adam1564POL+10N+19B+7N+4B+9N+5B−2N6.025.527.522.002296+81.6
2Duda, Milosz0POL=16N+12B+3B−7N+11B+4N+1B5.526.529.023.7515890.0
3Czubek, Jan1526POL=6N+5B−2N+10N+14B+7B=4N5.026.529.019.001671+28.8
4Plominski, Konrad1505POL+17N+9B+6N−1N+7B−2B=3B4.528.531.017.001678+46.8
5Cieslukowski, Olgierd0POL+13B−3N=11B+12N+18B−1N+9N4.524.526.513.7515730.0
6Kiecana, Aleksander0POL=3B+18N−4B−11N+10B+14N+12B4.522.524.514.001558+33.6
7Karczewski, Lukasz1525POL+20B+15N−1B+2B−4N−3N+17B4.026.026.010.501308-45.2
8Gniadek, Maurycy1559POL−15B+20N=10B−14N+16B=9B+18N4.016.516.58.001569+2.0
9Werema, Piotr1567POL+11B−4N+14B+15N−1B=8N−5B3.525.027.510.501500-17.6
10Domagalski, Nikodem1424POL−1B+13N=8N−3B−6N+16B+19N3.525.027.09.501513+34.0
11Marczak, Aleksander1461POL−9N+17B=5N+6B−2N−12B+15N3.524.026.511.751479+1.8
12Ratajczyk, Antoni1487POL=14B−2N+16N−5B+15B+11N−6N3.523.025.59.751647+33.2
13Kaczmarczyk, Jakub1519POL−5N−10B−17N+20B+19N−18B+14B3.017.017.04.501370-25.2
14Wierciak, Szymon0POL=12N+16B−9N+8B−3N−6B−13N2.523.526.08.2514150.0
15Cieslukowski, Zbigniew1406POL+8N−7B+19N−9B−12N=17N−11B2.521.023.07.251386-6.0
16Haczynski, Marcin1513POL=2B−14N−12B+19B−8N−10N+20B2.521.021.04.751291-41.6
17Luczak, Maciej0POL−4B−11N+13B−18N+20N=15B−7N2.519.519.54.2513100.0
18Dybowska, Elena1597POL−19N−6BF+17B−5N+13N−8B2.020.520.55.501310-60.8
19Motyka, Antoni1462POL+18B−1N−15B−16N−13B+20N−10B2.019.519.52.001228-67.2
20Benko, Filip0POL−7N−8BF−13N−17B−19B−16N0.018.020.00.007130.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets