4th Sunday Quad, Cork
Ireland · Sept. 27, 2026 – Sept. 27, 2026 · Ballyphehane Community Centre, Cork
Quad Tournament Standard game FIDE Nat.
Format & Rules
Format Quad Tournament
Rounds 3
Max participants 4
Time Control
Notation 60+30
Category Standard game
Schedule & Venue
Start Sept. 27, 2026
End Sept. 27, 2026
Venue Ballyphehane Community Centre, Cork
Rating
FIDE rated Yes
National rated Yes
National Tournament ID 2266
Officials
Arbiters
Chief Kardkovacs, Zsolt
Organisers
Zsolt Kardkovacs
Registration Conditions
To register, please sign in.
Top seeds
# ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼
1 Nordgreen, Jan Thomas ESP 2037 2159 24516260  23169 
4 Jarvis, David ENG 2026 1923 417971  23996  Cork Chess Club
3 Landmark, Snaevar IRL 1998 2003 2524848  20611  Malahide
2 WFM Petrenko, Maryna IRL 1964 2072 14197820  19931  Cork Chess Club
6 Gallagher, Brian IRL 1942 2005 2512556  17900  Galway Chess Club
Participants 43 registered
Show:
# ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼
1 Nordgreen, Jan Thomas ESP 2037 2159 24516260  23169 
4 Jarvis, David ENG 2026 1923 417971  23996  Cork Chess Club
3 Landmark, Snaevar IRL 1998 2003 2524848  20611  Malahide
2 WFM Petrenko, Maryna IRL 1964 2072 14197820  19931  Cork Chess Club
6 Gallagher, Brian IRL 1942 2005 2512556  17900  Galway Chess Club
5 Siller-Aziz, Namo IRL 1904 1909 2533138  22655 
7 Machowski, Hubert IRL 1884 1924 2514338  18634 
8 McGrady, Seth IRL 1837 1879 2532956  21854  Galway Chess Club
10 Sergent, Ziggy FRA 1835 1953 80448119  24003  Cork Chess Club
16 McCarthy, Ben IRL 1817 1788 2541599  22295  MTU Cork Chess Society
9 Hackett, Len IRL 1806 1836 2505460  2894  Cork Chess Club
12 O'Neill, Matthew IRL 1799 1863 2528533  20596  Cork Chess Club
13 Brito, Franco IRL 1797 1843 2535440  21490  Kinsale Chess Mates
14 Kelly, Ronan IRL 1761 1792 2532425  20811  Cork Chess Club
11 Bayrak, Beril TUR 1749 1820 6319505  22821  MTU Cork Chess Society
33 O'Mahony, David IRL — 1732 — 1297  Cork Chess Club
19 O'Rourke, Alex IRL 1724 1754 2521300  20028  Cork Chess Club
17 Aziz, Miro IRL 1718 1745 2539390  22656 
29 Rosenmai, James IRL 1707 1485 2544512  23416  Cork Chess Club
20 Kardkovacs, Akos IRL 1706 1713 2526999  20530  Kinsale Chess Mates
34 Fraccaroli, Leonardo IRL 1666 1422 2546566  23538  Cork Chess Club
22 Bhattacharjee, Krish IRL 1658 1676 33427020  20863  Cork Chess Club
15 Mazzocco, Paolo IRL — 1654 — 23991 
21 Goodfellow, Ruarai IRL 1652 1664 2524783  20528  The Big Mah's Chess Club
24 Cashman, Kian IRL 1650 1543 2535459  21644 
18 Johannesson, Bjorn NED 1643 1691 40101851  22737  Cork Chess Club
25 Miranda, Carls IRL 1622 1611 2543044  22914  The Big Mah's Chess Club
26 Machowski, Kajetan IRL 1609 1500 2539470  21466 
28 Rinne, Karl-Heinz IRL 1609 1487 2542960  23071  Dungarvan
23 O'Flynn, Sean IRL 1607 1568 2539497  22010  Cork Chess Club
27 Machowski, Igor IRL — 1482 2542510  22972 
32 Petrenko, Iryna IRL 1475 1430 34160701  20350 
30 Manikandan, Shasana IRL — 1447 2539934  22384 
31 Jagtap, Adhish IRL — 1377 2535491  21477  Cork Chess Club
36 Krishnakumar, Logitha IND — 1331 88177564  23257  Kinsale Chess Mates
35 Velu, Ritheeshwar Sai IRL — 1307 2539535  22624 
38 Voronianskyi, Maksym IRL — 1178 2549409  23952 
42 Barbosa, Harper IRL — 1178 2540983  22608  Cork Chess Club
40 Weng, Zi Rui IRL — 1091 — 24055  Cork Chess Club
37 Mindhe, Gauri IRL — 1054 2537214  21896  Cork Chess Club
41 Yershov, Bohdan IRL — 838 — 24058 
39 Vishwakarma, Krishna IRL — 606 — 23981 
43 Iyer, Vishwa Withdrawn player IND — — 5056853  24010  Cork Chess Club
Tournament start Seeding: Rating-based (FIDE)
Starting list
Show:
# ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼
1 Nordgreen, Jan Thomas ESP 2037 2159 24516260  23169 
4 Jarvis, David ENG 2026 1923 417971  23996  Cork Chess Club
3 Landmark, Snaevar IRL 1998 2003 2524848  20611  Malahide
2 WFM Petrenko, Maryna IRL 1964 2072 14197820  19931  Cork Chess Club
6 Gallagher, Brian IRL 1942 2005 2512556  17900  Galway Chess Club
5 Siller-Aziz, Namo IRL 1904 1909 2533138  22655 
7 Machowski, Hubert IRL 1884 1924 2514338  18634 
8 McGrady, Seth IRL 1837 1879 2532956  21854  Galway Chess Club
10 Sergent, Ziggy FRA 1835 1953 80448119  24003  Cork Chess Club
16 McCarthy, Ben IRL 1817 1788 2541599  22295  MTU Cork Chess Society
9 Hackett, Len IRL 1806 1836 2505460  2894  Cork Chess Club
12 O'Neill, Matthew IRL 1799 1863 2528533  20596  Cork Chess Club
13 Brito, Franco IRL 1797 1843 2535440  21490  Kinsale Chess Mates
14 Kelly, Ronan IRL 1761 1792 2532425  20811  Cork Chess Club
11 Bayrak, Beril TUR 1749 1820 6319505  22821  MTU Cork Chess Society
33 O'Mahony, David IRL — 1732 — 1297  Cork Chess Club
19 O'Rourke, Alex IRL 1724 1754 2521300  20028  Cork Chess Club
17 Aziz, Miro IRL 1718 1745 2539390  22656 
29 Rosenmai, James IRL 1707 1485 2544512  23416  Cork Chess Club
20 Kardkovacs, Akos IRL 1706 1713 2526999  20530  Kinsale Chess Mates
34 Fraccaroli, Leonardo IRL 1666 1422 2546566  23538  Cork Chess Club
22 Bhattacharjee, Krish IRL 1658 1676 33427020  20863  Cork Chess Club
15 Mazzocco, Paolo IRL — 1654 — 23991 
21 Goodfellow, Ruarai IRL 1652 1664 2524783  20528  The Big Mah's Chess Club
24 Cashman, Kian IRL 1650 1543 2535459  21644 
18 Johannesson, Bjorn NED 1643 1691 40101851  22737  Cork Chess Club
25 Miranda, Carls IRL 1622 1611 2543044  22914  The Big Mah's Chess Club
26 Machowski, Kajetan IRL 1609 1500 2539470  21466 
28 Rinne, Karl-Heinz IRL 1609 1487 2542960  23071  Dungarvan
23 O'Flynn, Sean IRL 1607 1568 2539497  22010  Cork Chess Club
27 Machowski, Igor IRL — 1482 2542510  22972 
32 Petrenko, Iryna IRL 1475 1430 34160701  20350 
30 Manikandan, Shasana IRL — 1447 2539934  22384 
31 Jagtap, Adhish IRL — 1377 2535491  21477  Cork Chess Club
36 Krishnakumar, Logitha IND — 1331 88177564  23257  Kinsale Chess Mates
35 Velu, Ritheeshwar Sai IRL — 1307 2539535  22624 
38 Voronianskyi, Maksym IRL — 1178 2549409  23952 
42 Barbosa, Harper IRL — 1178 2540983  22608  Cork Chess Club
40 Weng, Zi Rui IRL — 1091 — 24055  Cork Chess Club
37 Mindhe, Gauri IRL — 1054 2537214  21896  Cork Chess Club
41 Yershov, Bohdan IRL — 838 — 24058 
39 Vishwakarma, Krishna IRL — 606 — 23981 
43 Iyer, Vishwa Withdrawn player IND — — 5056853  24010  Cork Chess Club
Rounds
1 2 3
Round 3 Finished Full view
Group A (2)
Bd # White Rtg Pts Result Pts Rtg Black #
1 2 Landmark, Snaevar 1998 0.5 0–1 2.0 2037 Nordgreen, Jan Thomas 4 0 1
2 3 Petrenko, Maryna 1964 1.0 1–0 0.5 2026 Jarvis, David 1 1 0
Group B (2)
Bd # White Rtg Pts Result Pts Rtg Black #
3 2 Machowski, Hubert 1884 0.5 0–1 0.0 1904 Siller-Aziz, Namo 4 0 1
4 3 McGrady, Seth 1837 2.0 0–1 1.5 1942 Gallagher, Brian 1 0 1
Group C (2)
Bd # White Rtg Pts Result Pts Rtg Black #
5 2 Sergent, Ziggy 1835 2.0 1–0 1.0 1806 Hackett, Len 4 1 0
6 3 O'Neill, Matthew 1799 1.0 0–1 0.0 1749 Bayrak, Beril 1 0 1
Group D (2)
Bd # White Rtg Pts Result Pts Rtg Black #
7 2 Kelly, Ronan 1761 0.5 1–0 0.0 1654 Mazzocco, Paolo 4 1 0
8 3 Brito, Franco 1797 2.0 1–0 1.5 1817 McCarthy, Ben 1 1 0
Group E (2)
Bd # White Rtg Pts Result Pts Rtg Black #
9 2 Johannesson, Bjorn 1643 1.0 1–0 0.5 1732 O'Mahony, David 4 1 0
10 3 O'Rourke, Alex 1724 1.5 0–1 1.0 1718 Aziz, Miro 1 0 1
Group F (2)
Bd # White Rtg Pts Result Pts Rtg Black #
11 2 Bhattacharjee, Krish 1658 2.0 ½–½ 0.5 1607 O'Flynn, Sean 4 ½ ½
12 3 Cashman, Kian 1650 0.5 ½–½ 1.0 1652 Goodfellow, Ruarai 1 ½ ½
Group G (2)
Bd # White Rtg Pts Result Pts Rtg Black #
13 2 Machowski, Kajetan 1609 0.0 1–0 1.0 1482 Machowski, Igor 4 1 0
14 3 Miranda, Carls 1622 2.0 ½–½ 1.0 1609 Rinne, Karl-Heinz 1 ½ ½
Group H (2)
Bd # White Rtg Pts Result Pts Rtg Black #
15 2 Petrenko, Iryna 1475 2.0 0–1 0.5 1707 Rosenmai, James 4 0 1
16 3 Jagtap, Adhish 1377 0.5 ½–½ 1.0 1447 Manikandan, Shasana 1 ½ ½
Group I (2)
Bd # White Rtg Pts Result Pts Rtg Black #
17 2 Krishnakumar, Logitha 1331 1.5 0–1 2.0 1706 Kardkovacs, Akos 4 0 1
18 3 Velu, Ritheeshwar Sai 1307 0.5 0–1 0.0 1666 Fraccaroli, Leonardo 1 0 1
Tail (Swiss) (3)
Bd # White Rtg Pts Result Pts Rtg Black #
19 38 Voronianskyi, Maksym 1178 2.0 0–1 2.0 1178 Barbosa, Harper 42 0 1
20 37 Mindhe, Gauri 1054 1.0 0–1 1.0 1091 Weng, Zi Rui 40 0 1
21 41 Yershov, Bohdan 838 0.0 1–0 0.0 606 Vishwakarma, Krishna 39 1 0
Standings 3 tie-breaks
Group A (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 1 — Nordgreen, Jan Thomas ESP 2037 2159 24516260  23169  3 0 3.0 1
2 2 — WFM Petrenko, Maryna IRL 1964 2072 14197820  19931  Cork Chess Club 2 0 1.0 0
3 3 — Landmark, Snaevar IRL 1998 2003 2524848  20611  Malahide ½ 0 0.25 0
4 Jarvis, David ENG 2026 1923 417971  23996  Cork Chess Club ½ 0 0.25 0
Group B (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 2 Gallagher, Brian IRL 1942 2005 2512556  17900  Galway Chess Club 2½ 0 3.25 1
2 4 McGrady, Seth IRL 1837 1879 2532956  21854  Galway Chess Club 2 0 1.5 0
3 1 Siller-Aziz, Namo IRL 1904 1909 2533138  22655  1 0 0.5 0
4 3 Machowski, Hubert IRL 1884 1924 2514338  18634  ½ 0 1.25 0.5
Group C (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 2 Sergent, Ziggy FRA 1835 1953 80448119  24003  Cork Chess Club 3 0 3 0
2 1 Hackett, Len IRL 1806 1836 2505460  2894  Cork Chess Club 1 0 1 0
3 Bayrak, Beril TUR 1749 1820 6319505  22821  MTU Cork Chess Society 1 0 1 0
4 O'Neill, Matthew IRL 1799 1863 2528533  20596  Cork Chess Club 1 0 1 0
Group D (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 1 — Brito, Franco IRL 1797 1843 2535440  21490  Kinsale Chess Mates 3 0 3.0 2
2 2 — Kelly, Ronan IRL 1761 1792 2532425  20811  Cork Chess Club 1½ 0 0.75 0.5
4 McCarthy, Ben IRL 1817 1788 2541599  22295  MTU Cork Chess Society 1½ 0 0.75 0.5
4 3 Mazzocco, Paolo IRL — 1654 — 23991  0 0 0.0 0
Group E (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 2 Johannesson, Bjorn NED 1643 1691 40101851  22737  Cork Chess Club 2 1 2.5 1
2 1 Aziz, Miro IRL 1718 1745 2539390  22656  2 0 2.0 1
3 3 — O'Rourke, Alex IRL 1724 1754 2521300  20028  Cork Chess Club 1½ 0 2.25 1
4 4 — O'Mahony, David IRL — 1732 — 1297  Cork Chess Club ½ 0 0.75 0.5
Group F (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 2 Bhattacharjee, Krish IRL 1658 1676 33427020  20863  Cork Chess Club 2½ 0 3.00 1
2 1 Goodfellow, Ruarai IRL 1652 1664 2524783  20528  The Big Mah's Chess Club 1½ 0 1.50 0
3 3 — O'Flynn, Sean IRL 1607 1568 2539497  22010  Cork Chess Club 1 0 1.75 0.5
4 4 — Cashman, Kian IRL 1650 1543 2535459  21644  1 0 1.25 0.5
Group G (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 1 — Miranda, Carls IRL 1622 1611 2543044  22914  The Big Mah's Chess Club 2½ 0 2.75 0.5
2 4 Rinne, Karl-Heinz IRL 1609 1487 2542960  23071  Dungarvan 1½ 0 2.25 0.5
3 2 Machowski, Kajetan IRL 1609 1500 2539470  21466  1 1 1.0 0
4 3 Machowski, Igor IRL — 1482 2542510  22972  1 0 1.5 1
Group H (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 4 Petrenko, Iryna IRL 1475 1430 34160701  20350  2 0 2.5 1
2 2 — Manikandan, Shasana IRL — 1447 2539934  22384  1½ 1 2.00 1
3 1 Rosenmai, James IRL 1707 1485 2544512  23416  Cork Chess Club 1½ 0 2.50 1
4 3 Jagtap, Adhish IRL — 1377 2535491  21477  Cork Chess Club 1 0 1.50 1.0
Group I (4)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 1 — Kardkovacs, Akos IRL 1706 1713 2526999  20530  Kinsale Chess Mates 3 0 3.0 1
2 4 Krishnakumar, Logitha IND — 1331 88177564  23257  Kinsale Chess Mates 1½ 0 1.25 0
3 2 Fraccaroli, Leonardo IRL 1666 1422 2546566  23538  Cork Chess Club 1 0 0.5 0
4 3 Velu, Ritheeshwar Sai IRL — 1307 2539535  22624  ½ 0 0.75 0.5
Tail (Swiss) (6)
# ▲▼ SR ▲▼ Title ▲▼ Name ▲▼ Fed. ▲▼ FIDE ▲▼ NAT ▲▼ FIDE ID ▲▼ NAT ID ▲▼ Club ▲▼ Pts ▲▼ TB1 ▲▼ TB2 ▲▼ TB3 ▲▼
1 6 Barbosa, Harper IRL — 1178 2540983  22608  Cork Chess Club 3 0 4 1
2 2 — Voronianskyi, Maksym IRL — 1178 2549409  23952  2 1 3 1
3 4 Weng, Zi Rui IRL — 1091 — 24055  Cork Chess Club 2 0 1 0
4 1 Mindhe, Gauri IRL — 1054 2537214  21896  Cork Chess Club 1 0 0 0
5 Yershov, Bohdan IRL — 838 — 24058  1 0 0 0
6 3 Vishwakarma, Krishna IRL — 606 — 23981  0 0 0 0
Tie-break legend: TB1 — Direct Encounter (DE) · {'output': 'level'} TB2 — Sonneborn-Berger (SB) · {'own': 'primary', 'cut_low': 0, 'cut_high': 0, 'opponent': 'primary', 'played_forfeits': False} TB3 — Koya System (KS) · {'source': 'primary', 'limit_shift': 0, 'threshold_pct': 50}