44. Memorial Ludwika Zamenhofa 2025 - open B

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92 players participated in this 9-round tournament, held from 27 Dec 2025 to 31 Dec 2025 in Bialystok, Poland. 9 titled players from 6 federations. Top 10 Elo average was 2111, and top seed was Damian Daniel (🇵🇱 POL, CM, 2150).

Kacper Jarzebowski (🇵🇱 POL, 2078) won with 7.5/9, ahead of Ryszard Kasperek (7.0) and Pawel Kozlowski (6.5). Jarzebowski won solo starting round 7.

The biggest upset came in round 4: Maryia Murmantsava (1589) beat Bartosz Sleczka (1933), a +344-point gap.

Location

🇵🇱Bialystok, Poland

Dates

27 Dec 2025 → 31 Dec 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 9 rounds

Top seed

🇵🇱CMDamian Daniel2150

Avg top 10

2,111

Participants

Titled players · 9

FM×3

CM×4

WIM×1

WCM×1

Federations · 6 represented

🇵🇱Poland×86

🇺🇦Ukraine×2

🇪🇸Spain×1

🇱🇹Lithuania×1

🇮🇳India×1

🇬🇪Georgia×1

Top 3

🥇
Kacper Jarzebowski
🇵🇱POL·2078
7.5pts·2261perf+39.2
🥈
FMRyszard Kasperek
🇵🇱POL·2088
7.0pts·2214perf+29.0
🥉
Pawel Kozlowski
🇵🇱POL·2036
6.5pts·2134perf+24.6

How it unfolded

Top 6 · 9 rounds

Kacper Jarzebowski led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Jarzebowski7.5Kasperek7Sawicki6.5Daniel6.5Endeladze6.5Kozlowski6.5

R5–R9 · LEAD HELD

Kacper Jarzebowski held the sole lead from R5 through R9 without losing it.

R7 · HEAD-TO-HEAD · WINNER VS 2ND

Kacper Jarzebowski beat FM Ryszard Kasperek (White).

WIN STREAKS · 2 top finishers

Kacper Jarzebowski 5 wins (R1–R5)FM Ryszard Kasperek 5 wins (R2–R6)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Kacper Jarzebowski	*	1	—	—
2FMRyszard Kasperek	0	*	—	—
3Dorian Sawicki	—	—	*	½
4CMDamian Daniel	—	—	½	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	R9	Pts	Bu C1	Bu	SB	Perf	Δ
1	Jarzebowski, Kacper	2078	POL	+49B	+27N	+41B	+31N	+3B	=4N	+2B	=9N	=5B	7.5	47.0	51.5	42.00	2261	+39.2
2	Kasperek, RyszardFM	2088	POL	=73N	+33B	+43N	+50B	+16N	+6B	−1N	=4N	+9B	7.0	45.5	49.0	36.50	2214	+29.0
3	Kozlowski, Pawel	2036	POL	+22B	+65N	+17B	+6B	−1N	=5N	=10B	+34N	=4B	6.5	49.0	52.5	35.50	2134	+24.6
4	Endeladze, Ramaz	2133	GEO	=33N	+73B	+78N	+13B	+11N	=1B	=9N	=2B	=3N	6.5	47.5	50.5	34.50	2148	+6.0
5	Budzisz, AdrianCM	2065	POL	+53N	+57B	=14N	=15B	+30N	=3B	=11N	+13B	=1N	6.5	46.5	50.5	34.75	2112	+12.0
6	Medvedyk, VolodymyrFM	2138	UKR	+81B	+10N	+42B	−3N	+41B	−2N	=20B	+15B	+18N	6.5	45.0	47.5	31.25	2128	0.0
7	Daniel, DamianCM	2150	POL	−17B	+70N	=21B	+52N	+32B	=8N	+41B	=10N	+12B	6.5	43.0	46.5	32.00	2059	-15.2
8	Sawicki, Dorian	1992	POL	+71N	=43B	−15N	+73B	+37N	=7B	=36N	+27B	+16B	6.5	40.5	44.0	30.50	2076	+40.4
9	Reshetniak, Vitaliy	2048	UKR	+45B	+32N	=50B	=12N	+31B	+14N	=4B	=1B	−2N	6.0	47.5	51.5	32.50	2100	+12.6
10	Madejski, Milosz	1917	POL	+72N	−6B	=25N	+53B	+29N	+16B	=3N	=7B	=14B	6.0	45.5	49.0	30.25	2073	+73.6
11	Fukowski, Pawel	1997	POL	+35N	+36B	+56N	=16B	−4B	+50N	=5B	−12N	+34B	6.0	43.5	47.5	29.00	2070	+19.2
12	Mielczarski, Miroslaw	2042	POL	=77N	+64B	+26N	=9B	=24N	=15B	+27N	+11B	−7N	6.0	43.5	46.5	30.00	2024	-1.8
13	Ptaszynski, Szymon	2025	POL	+80B	=15N	+52B	−4N	+17B	+28N	=34B	−5N	+29B	6.0	43.0	45.5	27.25	2035	+6.1
14	Szuminski, Jakub	1962	POL	+47B	+76N	=5B	=18N	+67B	−9B	=15N	+30B	=10N	6.0	42.5	45.5	27.75	2027	+30.4
15	Businski, Jan	1867	POL	+92N	=13B	+8B	=5N	=18B	=12N	=14B	−6N	+41B	5.5	47.5	48.5	27.00	2055	+94.8
16	Leskiewicz, Ignacy	2118	POL	+21B	+20N	+28B	=11N	−2B	−10N	+46B	+23B	−8N	5.5	47.0	51.5	29.00	2029	-19.2
17	Olejko, Wojciech	1853	POL	+7N	+23B	−3N	=58B	−13N	=35B	+72N	=38B	+48N	5.5	43.0	46.5	27.00	2042	+90.4
18	Padalka, ArtemCM	2111	POL	+55N	=78B	+48N	=14B	=15N	−34B	+37N	+36B	−6B	5.5	41.5	44.5	25.75	1993	-24.8
19	Jakubowska, AnnaWIM	2139	POL	+30N	−31B	+55N	+69B	=34N	−27B	+22B	=20N	=21N	5.5	40.5	44.0	26.00	1940	-40.2
20	Kicinska, Anna	1901	POL	+62N	−16B	+77N	−24B	+69N	+44B	=6N	=19B	=25N	5.5	40.5	43.5	23.75	1954	+27.6
21	Zalewski, Witold	1834	POL	−16N	+72B	=7N	+48B	−28B	+90N	=50B	+51N	=19B	5.5	38.5	39.5	21.00	2005	+79.6
22	Mykhaliuk, Mykhailo	1775	POL	−3N	=84B	+89N	=43B	+57N	+31B	−19N	+58B	=23N	5.5	37.5	39.0	20.75	1960	+43.8
23	Rajlich, VaclavCM	1985	POL	+67B	−17N	−29B	+54N	+81B	+76N	+32B	−16N	=22B	5.5	37.0	39.5	20.75	1919	-28.0
24	Krajdocha, Konrad	1736	POL	−42B	+91N	+65B	+20N	=12B	−41N	=51B	=32N	+50B	5.5	37.0	38.0	21.50	1951	+103.6
25	Krzyzosiak, Marta	1793	POL	−88B	+85N	=10B	=51N	+40B	=46N	=28B	+50N	=20B	5.5	36.0	38.0	23.50	1965	+42.2
26	Kaminska, ZuzannaWCM	1873	POL	=70B	+83N	−12B	−66N	=68B	+47N	+53B	=28N	+44B	5.5	34.5	37.0	21.50	1831	-14.4
27	Kicinski, Jacek	1878	POL	+74N	−1B	=35N	+64B	+38B	+19N	−12B	−8N	=33N	5.0	44.0	47.5	22.50	1959	+19.4
28	Zimny, Jakub	1941	POL	+54N	+37B	−16N	=29B	+21N	−13B	=25N	=26B	=40N	5.0	43.0	47.0	25.00	1924	-4.4
29	Czarnowicz, Michal	1827	POL	−58N	+62B	+23N	=28N	−10B	+48B	=31N	+43B	−13N	5.0	40.5	44.5	23.50	1966	+32.0
30	Jaszczuk, Piotr	1844	POL	−19B	+60N	+79B	+42N	−5B	=51N	+38B	−14N	=36N	5.0	40.5	43.5	21.00	1961	+50.9
31	Fuks, Milan	1917	POL	+82B	+19N	+88B	−1B	−9N	−22N	=29B	=45N	+60B	5.0	40.5	42.5	18.75	1942	+11.6
32	Widelski, Kacper	1874	POL	+84N	−9B	+71N	+56B	−7N	+58B	−23N	=24B	=35N	5.0	40.0	42.5	19.25	1907	+7.8
33	Wnorowski, Wiktor	1838	POL	=4B	−2N	+83B	−38N	+82B	=66N	=44B	+46N	=27B	5.0	38.5	41.0	19.25	1897	+23.9
34	Zareba, Maciej	1890	POL	+90B	−88N	+45B	+80N	=19B	+18N	=13N	−3B	−11N	5.0	38.5	39.5	19.25	1991	+23.8
35	Skiba, Igor	1762	POL	−11B	+86N	=27B	−46N	+52B	=17N	=42B	+65N	=32B	5.0	38.0	40.0	19.50	1907	+34.2
36	Kicinska, Magdalena	1883	POL	+85B	−11N	−80B	+61N	+47B	+67N	=8B	−18N	=30B	5.0	37.5	39.5	19.75	1867	-3.0
37	Pojawa, Jakub	1858	POL	+91B	−28N	=66B	+68N	−8B	+64N	−18B	=42N	+51B	5.0	36.0	37.0	16.00	1890	+8.8
38	Maciejewski, Kamil	2036	POL	=64N	=77B	=53N	+33B	−27N	+73B	−30N	=17N	+52B	5.0	35.5	38.5	20.50	1870	-38.0
39	Ocytko, Andrzej	1995	POL	=68B	−56N	=54B	−47N	+61B	=45N	+64B	=52N	+76B	5.0	32.0	35.0	18.50	1795	-43.8
40	Sucharski, Jakub	1871	POL	F	+82N	−67B	+77B	−25N	+68N	+66B	=41N	=28B	5.0	31.0	31.0	17.25	1888	+5.6
41	Kaminski, Jan	1922	POL	+66N	+44B	−1N	+76B	−6N	+24B	−7N	=40B	−15N	4.5	44.5	47.5	19.00	1887	-7.6
42	Ryszkiewicz, Adam	1985	POL	+24N	+69B	−6N	−30B	−76N	+71B	=35N	=37B	=43N	4.5	38.5	41.5	19.75	1848	-31.6
43	Fudala, Dominik	1877	POL	+86B	=8N	−2B	=22N	=90B	=53N	+76B	−29N	=42B	4.5	37.5	38.5	15.75	1831	-10.2
44	Wnorowski, Lukasz	1616	POL	+51B	−41N	−46B	+45N	+65B	−20N	=33N	+69B	−26N	4.5	37.0	40.5	18.00	1870	+103.4
45	Surkont, Jan	1787	POL	−9N	+74B	−34N	−44B	+62N	=39B	+78N	=31B	=57N	4.5	37.0	40.0	17.50	1838	+11.8
46	Wasiluk, Mateusz	1890	POL	=83B	−68N	+44N	+35B	=58N	=25B	−16N	−33B	+64N	4.5	36.5	39.0	19.00	1817	-31.5
47	Borowik, Monika	1732	POL	−14N	+63B	−69N	+39B	−36N	−26B	+81B	=55N	+65B	4.5	36.5	39.0	17.00	1895	+76.4
48	Kaminski, Maciej	1884	POL	=59N	+89B	−18B	−21N	+80B	−29N	+90B	+67N	−17B	4.5	33.0	34.0	10.50	1760	-26.8
49	Berent, Mateusz	1809	POL	−1N	−79B	+74N	F	=70B	=75N	+61B	=54N	+67B	4.5	32.5	33.5	16.50	1724	-32.0
50	Slabicki, Andrzej	1892	POL	+79N	+58B	=9N	−2N	+66B	−11B	=21N	−25B	−24N	4.0	43.0	46.0	16.25	1839	-12.4
51	Czachurski, Ignacy	1890	POL	−44N	=54B	+59N	=25B	+56N	=30B	=24N	−21B	−37N	4.0	39.0	43.0	18.00	1706	-80.2
52	Filimoniuk, Marcin	1854	POL	=89N	+59B	−13N	−7B	−35N	+74B	+56N	=39B	−38N	4.0	39.0	40.5	14.75	1773	-16.8
53	Wons, Krystian	1807	POL	−5B	+90N	=38B	−10N	+89B	=43B	−26N	=66N	=54B	4.0	36.5	37.5	11.00	1765	-16.8
54	Piekutowska, Lena	1727	POL	−28B	=51N	=39N	−23B	=59N	+70B	=57N	=49B	=53N	4.0	36.0	39.5	16.25	1786	+27.6
55	Krynicki, Filip	1827	POL	−18B	+61N	−19B	=75N	=60B	+79N	−58N	=47B	=59N	4.0	35.0	38.0	15.00	1750	-19.8
56	Rabiej, Mateusz	1722	POL	+63N	+39B	−11B	−32N	−51B	=65N	−52B	=70N	+90B	4.0	35.0	36.0	13.50	1797	+31.5
57	Nowak, Roksana	1900	POL	+61B	−5N	−76B	+79N	−22B	=80N	=54B	=71N	=45B	4.0	34.0	36.5	14.25	1727	-39.8
58	Ciszewski, Krzysztof	2091	POL	+29B	−50N	+68B	=17N	=46B	−32N	+55B	−22N	—	4.0	33.5	37.0	17.50	1836	-50.0
59	Konopka, Tymon	1608	POL	=48B	−52N	−51B	=70N	=54B	+82N	−65B	+80N	=55B	4.0	30.0	32.5	13.00	1741	+58.8
60	Zawadzki, Antoni	1676	POL	−78N	−30B	=87N	+86B	=55N	−69B	+63N	+77B	−31N	4.0	29.5	31.5	12.00	1756	+38.0
61	Prokop, Patryk	1634	POL	−57N	−55B	+92N	−36B	−39N	+85B	−49N	+87B	+77N	4.0	29.5	30.5	8.00	1717	+34.4
62	Galinska, Pola	1668	POL	−20B	−29N	+91B	−81N	−45B	+92N	+68B	−64N	+78N	4.0	28.5	29.5	8.50	1709	+19.6
63	Sleczka, Bartosz	1933	POL	−56B	−47N	F	−74B	+87N	+83N	−60B	+86N	+66B	4.0	26.0	27.0	10.00	1646	-53.6
64	Lenkov, Stanislav	1769	POL	=38B	−12N	+70B	−27N	+78N	−37B	−39N	+62B	−46B	3.5	38.0	41.0	13.00	1788	+6.0
65	Markowski, Adam	1868	POL	+87N	−3B	−24N	+71B	−44N	=56B	+59N	−35B	−47N	3.5	37.5	39.5	11.50	1641	-105.6
66	Tonga, Radoslaw	1720	POL	−41B	+81N	=37N	+26B	−50N	=33B	−40N	=53B	−63N	3.5	37.0	39.5	15.00	1791	+16.2
67	Zielinski, Krzysztof	1739	POL	−23N	+92B	+40N	+78B	−14N	−36B	=69N	−48B	−49N	3.5	37.0	38.0	10.75	1774	+15.6
68	Gorniak, Mateusz	1746	POL	=39N	+46B	−58N	−37B	=26N	−40B	−62N	+85B	=74N	3.5	36.5	38.5	13.50	1747	-2.6
69	Pidluznij, Matvej	1868	LTU	+75B	−42N	+47B	−19N	−20B	+60N	=67B	−44N	−71B	3.5	35.5	39.0	13.75	1702	-77.6
70	Raczkiewicz, Mateusz	1534	POL	=26N	−7B	−64N	=59B	=49N	−54N	+82B	=56B	=72N	3.5	35.5	38.0	13.25	1680	+58.4
71	Saliuk, Maryia	1742	POL	−8B	+75N	−32B	−65N	+92B	−42N	F	=57B	+69N	3.5	33.5	34.5	10.00	1770	+10.4
72	Bombinski, Michal	1685	POL	−10B	−21N	−75B	+84N	+91B	+81N	−17B	−76N	=70B	3.5	32.0	33.0	7.75	1621	-35.6
73	Kalus, Franciszek	1822	POL	=2B	−4N	+84B	−8N	+75B	−38N	+80B	—	—	3.5	31.0	33.5	12.00	1867	+8.6
74	Murmantsava, Maryia	1589	POL	−27B	−45N	−49B	+63N	=83B	−52N	+89B	=81N	=68B	3.5	30.5	32.0	9.75	1686	+32.2
75	Kotarbinski, Przemyslaw	1513	POL	−69N	−71B	+72N	=55B	−73N	=49B	−77N	=83B	+82B	3.5	28.0	30.5	11.50	1683	+68.4
76	Lewczuk, Jakub	1805	POL	F	−14B	+57N	−41N	+42B	−23B	−43N	+72B	−39N	3.0	37.5	37.5	12.00	1828	+7.2
77	Kultucki, Kamil	1781	POL	=12B	=38N	−20B	−40N	−79B	+89N	+75B	−60N	−61B	3.0	36.0	37.5	10.50	1624	-37.0
78	Bakalarz, LeszekFM	1909	POL	+60B	=18N	−4B	−67N	−64B	+84N	−45B	=90N	−62B	3.0	34.0	35.0	9.75	1657	-57.8
79	Rajlich, Simon	1629	POL	−50B	+49N	−30N	−57B	+77N	−55B	F	F	+91B	3.0	29.0	29.0	8.50	1740	+35.2
80	Kozlowski, Kacper	1764	POL	−13N	+87B	+36N	−34B	−48N	=57B	−73N	−59B	F	2.5	34.5	36.5	9.00	1676	-37.6
81	Serradell Munoz, Silvia	1841	ESP	−6N	−66B	+85N	+62B	−23N	−72B	−47N	=74B	−83N	2.5	33.5	35.5	7.75	1583	-123.2
82	Pilka, Lukasz	1706	POL	−31N	−40B	=86N	+87B	−33N	−59B	−70N	+92B	−75N	2.5	30.0	31.0	4.00	1490	-52.0
83	Harasimczuk, Jakub	1612	POL	=46N	−26B	−33N	−89B	=74N	−63B	F	=75N	+81B	2.5	30.0	30.0	8.25	1598	-6.0
84	Fifielski, Marcin	1539	POL	−32B	=22N	−73N	−72B	+86N	−78B	−85N	+89N	F	2.5	27.0	28.5	6.25	1571	+2.0
85	Wasilewicz, Wawrzyniec	1597	POL	−36N	−25B	−81B	−91N	F	−61N	+84B	−68N	+87B	2.0	26.0	26.0	4.50	1487	-51.6
86	Burnos, Jan	1585	POL	−43N	−35B	=82B	−60N	−84B	F	=87N	−63B	+92N	2.0	25.5	25.5	3.25	1498	-39.2
87	Sidor, Mateusz	1524	POL	−65B	−80N	=60B	−82N	−63B	+91N	=86B	−61N	−85N	2.0	24.5	25.5	4.00	1472	-27.6
88	Szlod, Wiktor	2059	POL	+25N	+34B	−31N	—	—	—	—	—	—	2.0	10.5	15.5	10.50	1992	-9.2
89	Pierzchlewski, Krzysztof	1432	POL	=52B	−48N	−22B	+83N	−53N	−77B	−74N	−84B	F	1.5	29.5	29.5	4.50	1471	+4.0
90	Poreba, Jan	1619	POL	−34N	−53B	F	F	=43N	−21B	−48N	=78B	−56N	1.0	36.0	39.0	3.75	1537	-21.6
91	Chakrapani Cheripally	1463	IND	−37N	−24B	−62N	+85B	−72N	−87B	−92B	F	−79N	1.0	26.0	26.0	2.00	1331	-24.6
92	Borowik, Grzegorz	1510	POL	−15B	−67N	−61B	F	−71N	−62B	+91N	−82N	−86B	1.0	26.0	26.0	1.00	1354	-27.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Krajdocha, KonradPOL
+103.6
5.5 pts · #23
2Wnorowski, LukaszPOL
+103.4
4.5 pts · #48
3Businski, JanPOL
+94.8
5.5 pts · #16

Top rating losers

1Serradell Munoz, SilviaESP
-123.2
2.5 pts · #81
2Markowski, AdamPOL
-105.6
3.5 pts · #71
3Czachurski, IgnacyPOL
-80.2
4.0 pts · #52

Biggest upsets

R4+344 Elo gap
Murmantsava, Maryia1589 beat Sleczka, Bartosz1933
R8+316 Elo gap
Mykhaliuk, Mykhailo1775 beat Ciszewski, Krzysztof2091
R1+297 Elo gap
Olejko, Wojciech1853 beat CMDaniel, Damian2150