AICFB South Zone Chess Championship for the Visually Challenged 2025

Open SwissStandard

102 players participated in this 8-round tournament, held from 19 Sept 2025 to 21 Sept 2025 in Chennai, India. Top 10 Elo average was 1703, and top seed was S. T. Saikrishna (🇮🇳 IND, 1819).

Venkat Reddy S (🇮🇳 IND, 1642) won with 7.0/8, ahead of Hariharan Gandhi (7.0) and Rithvik Marri (6.5). S took the lead from round 7, winning on tie-break.

The biggest upset came in round 7: Sharan Babu (1430) beat Mangal Mohan (1662), a +232-point gap.

Location

🇮🇳Chennai, India

Dates

19 Sept 2025 → 21 Sept 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 8 rounds

Top seed

🇮🇳S. T. Saikrishna1819

Avg top 10

1,703

Participants

102

Federations · 1 represented

🇮🇳India×71

Top 3

🥇
Venkat Reddy S
🇮🇳IND·1642
7.0pts·1969perf+53.2
🥈
Hariharan Gandhi
🇮🇳IND·1674
7.0pts·1969perf+47.8
🥉
Rithvik Marri
🇮🇳IND·1788
6.5pts·1846perf+17.6

How it unfolded

Top 6 · 8 rounds

Tight race until R6; 2 players tied at 7.0/8, decided on Buchholz. Title race narrowed from 5 co-leaders at R4 to 2 at the finish.

Co-leaders

Gandhi7Venkat Reddy7Marri6.5Saikrishna6Kodipaka6Unni6

R7 · LEADER CHANGE21 Sept

Venkat Reddy S takes the sole lead (6.5/7).

R8 · TIEBREAK CLUSTER

2 players finish on 7.0/8. S takes the title on Buchholz Cut1 (42.0).

R7 · HEAD-TO-HEAD · WINNER VS 2ND

Hariharan Gandhi lost to Venkat Reddy S (White).

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Hariharan Gandhi	*	0	1	1
2Venkat Reddy S	1	*	½	½
3Rithvik Marri	0	½	*	—
4S. T. Saikrishna	0	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	R8	Pts	Bu C1	Bu	SB	Perf	Δ
1	Venkat Reddy S	1642	IND	+67N	+14B	+12N	+7B	=4N	+11B	+2N	=3B	7.0	42.0	45.5	39.25	1969	+53.2
2	Hariharan Gandhi	1674	IND	+62B	+31N	+59B	+19N	+5B	+3N	−1B	+4B	7.0	38.5	42.0	35.00	1969	+47.8
3	Rithvik Marri	1788	IND	+61N	+40B	+28N	+9B	+11N	−2B	+6N	=1N	6.5	40.0	43.5	33.00	1846	+17.6
4	Saikrishna, S. T.	1819	IND	+52B	+22N	+10B	+13N	=1B	=20N	+28B	−2N	6.0	39.5	43.5	30.50	1780	-5.4
5	Sujith M Unni	1665	IND	+87N	+25B	+36N	=6B	−2N	+12B	+16N	=19B	6.0	38.5	41.0	28.50	1727	+12.0
6	Raghu Ram M	1563	IND	+97B	+41N	+30B	=5N	=13B	+10N	−3B	+20N	6.0	37.0	38.5	26.25	1775	+68.0
7	Balaji R	1519	IND	+93B	+29N	+63B	−1N	−10B	+61N	+22B	+34N	6.0	33.5	35.5	23.00	1710	+61.6
8	Krishna, Udupa	1735	IND	+50N	−15B	+43N	=14B	+63N	+59B	=21N	+26B	6.0	32.5	36.0	25.25	1673	-9.0
9	Shivadeepak Kodipaka	1612	IND	+86B	+47N	+44B	−3N	+31B	−28N	+51B	+21N	6.0	32.5	35.0	24.00	1724	+60.8
10	Aakash Vadlakonda	1597	IND	+48B	+23N	−4N	+37B	+7N	−6B	+44N	=18B	5.5	37.0	41.0	26.25	1672	+28.0
11	Marimuthu K	1739	IND	+70B	+35N	+34B	+20N	−3B	−1N	=31B	+33N	5.5	36.5	39.5	23.75	1699	-5.8
12	Arivazhagan S	1569	IND	+68B	+56N	−1B	+23N	=30B	−5N	+39B	+31N	5.5	35.5	39.0	23.75	1623	+8.2
13	Shidad M	1625	IND	+45B	+51N	+42B	−4B	=6N	+35N	=20B	=32N	5.5	34.0	38.0	24.25	1694	+13.2
14	Kumar Raja C H	1507	IND	+88B	−1N	+45B	=8N	−29B	+65N	+30B	+35N	5.5	34.0	36.5	22.00	1651	+23.8
15	Selvakumar Shanmugasamy	1537	IND	+71B	+8N	−20B	+70N	−19B	=33N	+66B	+29N	5.5	31.5	34.5	22.25	1639	+16.2
16	Venkata Naga Durga Prasad Katta	1477	IND	+74N	−19B	+83N	=59B	+36N	+30N	−5B	+40B	5.5	30.5	33.0	20.25	1656	+63.2
17	Shashidhar K M	1642	IND	+98B	=63N	+60B	=32N	+22B	=34N	=19B	=28N	5.5	30.5	32.0	21.00	1656	+3.2
18	Gopi R	1660	IND	F	F	+71B	+64N	+70B	+47N	+34B	=10N	5.5	23.5	23.5	20.75	1868	+16.8
19	Rafik S	1604	IND	F	+16N	+33B	−2B	+15N	+32B	=17N	=5N	5.0	38.5	38.5	25.75	1739	+25.2
20	Noushad E P	1608	IND	+92N	+37B	+15N	−11B	+42N	=4B	=13N	−6B	5.0	37.0	39.0	21.75	1662	+10.4
21	Vruthi Jain	1569	IND	=43N	+46B	−32N	+60B	+38N	+29N	=8B	−9B	5.0	33.5	37.0	21.50	1630	+20.8
22	Sanal Kumar S	1549	IND	+90N	−4B	+49N	+89B	−17N	+37B	−7N	+54B	5.0	32.0	34.0	16.50	1507	-6.6
23	Dileep K	1474	IND	+78N	−10B	+75N	−12B	+58N	+40B	−26N	+46B	5.0	31.0	34.0	18.00	1385	-17.2
24	Muniraju K	1461	IND	+75N	−28B	+58N	−42B	+46N	+25B	−32N	+41B	5.0	30.0	33.0	20.00	1365	-7.6
25	Ganesh Palla	1522	IND	+91B	−5N	+57B	−80N	+49B	−24N	+45B	+55N	5.0	30.0	32.0	18.00	1384	-22.4
26	Shivanagouda N M	1607	IND	+80B	−33N	−70B	+79N	+50B	+53N	+23B	−8N	5.0	29.5	32.5	19.00	1550	-9.2
27	Vibin Wilson C	1463	IND	−41B	+97N	+62B	−30N	+45B	+42N	−29B	+57N	5.0	28.5	30.0	17.00	1467	+0.4
28	Kiran Kumar A Simpi	1585	IND	+100B	+24N	−3B	+47N	F	+9B	−4N	=17B	4.5	36.0	36.0	17.75	1683	+15.8
29	Sparsh Tiwari	1644	IND	+49N	−7B	+61N	=38B	+14N	−21B	+27N	−15B	4.5	35.5	39.0	20.25	1456	-55.2
30	Shaibu T	1617	IND	+84N	+38B	−6N	+27B	=12N	−16B	−14N	+66B	4.5	35.5	38.0	18.25	1496	-23.0
31	Mohammed Salih, PK	1522	IND	+73N	−2B	+77N	+72B	−9N	+54B	=11N	−12B	4.5	34.0	37.0	15.75	1315	-17.8
32	Sam Peniel P	1584	IND	F	=60N	+21B	=17B	+41N	−19N	+24B	=13B	4.5	33.5	33.5	21.25	1614	+11.2
33	Muhammed Ranish	1498	IND	+83N	+26B	−19N	=36B	=40N	=15B	+59N	−11B	4.5	33.0	35.5	18.00	1598	+37.2
34	Sathish M	1590	IND	+72N	+89B	−11N	+66B	+44N	=17B	−18N	−7B	4.5	33.0	35.0	15.25	1562	-5.6
35	Binoy V S	1527	IND	+99N	−11B	=67N	+43B	+39N	−13B	+36N	−14B	4.5	33.0	34.0	15.75	1513	-5.2
36	Kalla Murali	1579	IND	+94B	+55N	−5B	=33N	−16B	+60N	−35B	+65N	4.5	31.5	33.5	15.25	1492	-32.8
37	Anbarasi R	1455	IND	+76B	−20N	+56B	−10N	+92B	−22N	=68B	+64N	4.5	29.5	31.5	14.25	1355	-20.0
38	Manu K P	1478	IND	+69B	−30N	+48B	=29N	−21B	−62N	+89B	+60N	4.5	28.5	30.5	15.25	1544	+17.6
39	Rajkumar S	1475	IND	=64B	−65N	+91B	+52N	−35B	+82B	−12N	+68N	4.5	27.0	29.0	13.75	1447	-11.6
40	Musthafa K	1549	IND	+79B	−3N	+50B	=65N	=33B	−23N	+49B	−16N	4.0	33.0	36.0	15.00	1289	-66.4
41	Vadde Ramesh	0	IND	+27N	−6B	+54N	+82B	−32B	−51N	+50B	−24N	4.0	32.5	35.0	15.50	1410	0.0
42	Naavarasu P	1552	IND	F	+54B	−13N	+24N	−20B	−27B	+62N	+48B	4.0	32.0	32.0	16.50	1342	-40.4
43	Jeevanandham N	0	IND	=21B	+64N	−8B	−35N	=52B	+70N	+53B	−51N	4.0	31.0	34.0	15.00	1474	0.0
44	Naveen Merwade	1508	IND	+95N	+82B	−9N	+46B	−34B	+48N	−10B	F	4.0	30.5	32.5	12.50	1409	-17.2
45	FIDE 48794309	0	—	−13N	+101B	−14N	+83B	−27N	+58B	−25N	+75B	4.0	30.5	30.5	9.50	729	0.0
46	Thippeswamy T	0	IND	+65B	−21N	+55B	−44N	−24B	+77N	+61B	−23N	4.0	30.0	33.0	14.00	1345	0.0
47	Lokesh K	1499	IND	+101N	−9B	+85N	−28B	+72N	−18B	−48N	+71B	4.0	28.5	28.5	8.50	802	-43.2
48	Donakatla Harikrishna	0	IND	−10N	+78B	−38N	+74B	+89N	−44B	+47B	−42N	4.0	28.0	30.0	12.00	1387	0.0
49	FIDE 558056971	0	—	−29B	+93N	−22B	+69N	−25N	+78B	−40N	+73B	4.0	28.0	30.0	11.50	761	0.0
50	FIDE 88144933	0	—	−8B	+71N	−40N	+95B	−26N	+73B	−41N	+78B	4.0	28.0	30.0	11.00	825	0.0
51	Lingaraju	1501	IND	F	−13B	−72N	+90B	+73N	+41B	−9N	+43B	4.0	27.5	27.5	13.00	793	-15.0
52	Divakar M	1405	IND	−4N	+90B	=82N	−39B	=43N	+71B	+76N	F	4.0	27.0	29.0	11.25	1372	-6.8
53	Muhamad Aflah K	1499	IND	−56B	+68N	−80B	+99N	+57B	−26B	−43N	+76N	4.0	26.5	27.5	11.50	790	-14.8
54	Alwin J Pradeep	1408	IND	+102B	−42N	−41B	+93N	+75B	−31N	+56B	−22N	4.0	26.5	26.5	9.00	1317	0.0
55	Rijil V J	1425	IND	+77N	−36B	−46N	−73B	+67N	+72B	+75N	−25B	4.0	26.0	29.0	12.50	751	-25.6
56	Pavan Kumar M H	0	IND	+53N	−12B	−37N	−61B	+90N	+84B	−54N	+92B	4.0	26.0	28.0	10.50	1383	0.0
57	FIDE 558057382	0	—	−82N	+95B	−25N	+85B	−53N	+74B	+81N	−27B	4.0	25.0	27.0	10.50	733	0.0
58	Shankar R	0	IND	−60B	+94N	−24B	+91N	−23B	−45N	+90N	+82B	4.0	24.0	26.0	8.50	1314	0.0
59	Ramesha A R	1577	IND	F	+66B	−2N	=16N	+65B	−8N	−33B	+62B	3.5	33.5	33.5	13.25	1478	-16.8
60	Khadir Bavas Korabu	1453	IND	+58N	=32B	−17N	−21N	+64B	−36B	+67N	−38B	3.5	31.5	35.0	13.25	1356	-29.6
61	Laxmikant A Simpi	1400	IND	−3B	+79N	−29B	+56N	+76B	−7B	−46N	=69N	3.5	31.5	34.5	11.75	843	0.0
62	Ajith D	0	IND	−2N	+73B	−27N	+78B	=66N	+38B	−42B	−59N	3.5	30.5	33.5	12.25	1331	0.0
63	Ayisha Sainab K A	1504	IND	+85N	=17B	−7N	+67B	−8B	−66N	−64B	+84N	3.5	30.5	33.0	11.25	1184	-68.4
64	Endolla Rajkumar	1438	IND	=39N	−43B	+87N	−18B	−60N	+79B	+63N	−37B	3.5	28.5	31.0	11.25	1361	-21.6
65	Sharan Babu	1430	IND	−46N	+39B	+102N	=40B	−59N	−14B	+82N	−36B	3.5	28.5	28.5	9.00	1539	+43.6
66	Abdul Samad S	1426	IND	+81B	−59N	+76B	−34N	=62B	+63B	−15N	−30N	3.5	28.0	31.0	11.25	1326	-10.2
67	FIDE 531006337	0	—	−1B	+88N	=35B	−63N	−55B	+91N	−60B	+85N	3.5	27.5	29.5	9.25	1143	0.0
68	Jaya Sri L	0	IND	−12N	−53B	−74N	+96B	+83N	+89B	=37N	−39B	3.5	26.0	28.0	8.75	1343	0.0
69	FIDE 25987330	0	—	−38N	+84B	−89N	−49B	−71N	+99B	+72N	=61B	3.5	22.5	23.5	8.25	669	0.0
70	Abhay Krishna	0	IND	−11N	+99B	+26N	−15B	−18N	−43B	−73N	+90B	3.0	30.5	31.5	8.00	1440	0.0
71	FIDE 429083745	0	—	−15N	−50B	−18N	+86N	+69B	−52N	+96B	−47N	3.0	29.0	31.0	8.00	726	0.0
72	Jeeru Durga	0	IND	−34B	+81N	+51B	−31N	−47B	−55N	−69B	+91N	3.0	27.5	29.5	9.00	1266	0.0
73	Lakshmi Narayana B	0	IND	−31B	−62N	+86B	+55N	−51B	−50N	+70B	−49N	3.0	27.0	29.5	9.50	1355	0.0
74	FIDE 558057307	0	—	−16B	−80N	+68B	−48N	+79B	−57N	−77B	+94N	3.0	26.0	28.0	8.50	665	0.0
75	FIDE 88144852	0	—	−24B	+100N	−23B	+94N	−54N	+92B	−55B	−45N	3.0	26.0	26.0	4.00	645	0.0
76	FIDE 558057293	0	—	−37N	+92B	−66N	+77B	−61N	+87N	−52B	−53B	3.0	25.0	27.0	7.50	643	0.0
77	FIDE 558057285	0	—	−55B	+96N	−31B	−76N	+88N	−46B	+74N	−81B	3.0	24.0	26.0	7.50	669	0.0
78	FIDE 48794198	0	—	−23B	−48N	+97B	−62N	+99B	−49N	+94B	−50N	3.0	24.0	25.0	4.50	674	0.0
79	K Hepsiba	0	IND	−40N	−61B	+96N	−26B	−74N	−64N	+95B	+89N	3.0	23.0	25.0	6.00	1316	0.0
80	Chandru Sampath	0	IND	−26N	+74B	+53N	+25B	F	F	F	F	3.0	21.5	21.5	12.00	1555	0.0
81	FIDE 558057021	0	—	−66N	−72B	−90N	F	+93B	+94N	−57B	+77N	3.0	19.5	19.5	7.00	618	0.0
82	Mangal Mohan	1662	IND	+57B	−44N	=52B	−41N	+87B	−39N	−65B	−58N	2.5	28.0	30.5	8.50	1128	-101.6
83	FIDE 531010857	0	—	−33B	+86N	−16B	−45N	−68B	+98N	−92N	=97B	2.5	23.5	25.0	4.75	682	0.0
84	FIDE 547040440	0	—	−30B	−69N	−93B	+97N	+95B	−56N	=85B	−63B	2.5	22.0	23.5	4.75	761	0.0
85	FIDE 33352828	0	—	−63B	+98N	−47B	−57N	−94B	+93N	=84N	−67B	2.5	21.5	23.0	4.75	702	0.0
86	FIDE 558056963	0	—	−9N	−83B	−73N	−71B	−91B	+100N	+93B	=88N	2.5	21.0	21.0	3.25	761	0.0
87	FIDE 558057234	0	—	−5B	=91N	−64B	+98N	−82N	−76B	−97B	+96N	2.5	20.5	22.0	4.50	786	0.0
88	FIDE 558057315	0	—	−14N	−67B	−92N	+100N	−77B	−90B	+99N	=86B	2.5	19.5	19.5	2.25	707	0.0
89	Suneesh K	1441	IND	+96B	−34N	+69B	−22N	−48B	−68N	−38N	−79B	2.0	28.0	30.0	5.50	740	-46.8
90	FIDE 558057013	0	—	−22B	−52N	+81B	−51N	−56B	+88N	−58B	−70N	2.0	27.0	29.5	5.50	685	0.0
91	FIDE 48794520	0	—	−25N	=87B	−39N	−58B	+86N	−67B	=98N	−72B	2.0	25.0	26.5	4.50	699	0.0
92	FIDE 48794368	0	—	−20B	−76N	+88B	F	−37N	−75N	+83B	−56N	2.0	24.5	24.5	5.00	732	0.0
93	FIDE 558057390	0	—	−7N	−49B	+84N	−54B	−81N	−85B	−86N	+100B	2.0	24.5	24.5	2.50	719	0.0
94	FIDE 558057242	0	—	−36N	−58B	+101N	−75B	+85N	−81B	−78N	−74B	2.0	23.0	23.0	2.50	779	0.0
95	FIDE 558056955	0	—	−44B	−57N	+100B	−50N	−84N	−96B	−79N	+98B	2.0	21.0	21.0	1.50	698	0.0
96	FIDE 33353042	0	—	−89N	−77B	−79B	−68N	+100B	+95N	−71N	−87B	2.0	19.0	19.0	2.00	660	0.0
97	FIDE 48794180	0	—	−6N	−27B	−78N	−84B	−98B	F	+87N	=83N	1.5	23.0	23.0	3.75	713	0.0
98	FIDE 88149285	0	—	−17N	−85B	−99N	−87B	+97N	−83B	=91B	−95N	1.5	18.5	19.5	2.50	842	0.0
99	FIDE 547041447	0	—	−35B	−70N	+98B	−53B	−78N	−69N	−88B	F	1.0	22.0	22.0	1.50	710	0.0
100	FIDE 558057277	0	—	−28N	−75B	−95N	−88B	−96N	−86B	F	−93N	0.0	18.5	18.5	0.00	785	0.0
101	FIDE 48794694	0	—	−47B	−45N	−94B	F	F	F	F	F	0.0	10.0	10.0	0.00	699	0.0
102	Vijay Arumugham	1430	IND	−54N	F	−65B	F	F	F	F	F	0.0	9.5	9.5	0.00	620	-20.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Raghu Ram MIND
+68.0
6.0 pts · #12
2Venkata Naga Durga Prasad KattaIND
+63.2
5.5 pts · #22
3Balaji RIND
+61.6
6.0 pts · #15

Top rating losers

1Mangal MohanIND
-101.6
2.5 pts · #65
2Ayisha Sainab K AIND
-68.4
3.5 pts · #61
3Musthafa KIND
-66.4
4.0 pts · #50

Biggest upsets

R7+232 Elo gap
Sharan Babu1430 beat Mangal Mohan1662
R2+198 Elo gap
Selvakumar Shanmugasamy1537 beat Krishna, Udupa1735
R6+187 Elo gap
Rajkumar S1475 beat Mangal Mohan1662