India International Master B Adhiban scripted a monumental victory by getting better of the applecart for top seed Sergei Tiviakov in the ninth and penultimate round of the 1st SCS International Open GM Chess Tournament at hotel Swosti Plaza here on Saturday.
Playing with black color, Chennai teenager Adhiban gained on Russia Grandmaster Tiviakov’s mistakes to achieve the biggest win of the career. ``I never expected to win against a giant like Tiviakov. It’s a dream come true for me,’’ said the 16-year-old Adhiban, who clinched victory in 25 moves.
Meanwhile, Russia Grandmaster Igor Kurnosov maintained his sole lead even though he was held to a draw by Ukraine GM Yaroslav Zinchenko. Kurnosov now has 7.5 points, half a point ahead of 10 others, who shared the second place.
MS Thejkumar was another Indian player to cause an upset in the ninth round. He outplayed Russia Grandmaster Sergey Vokarev to share the second place with Adhiban, Abhijeet Gupta, Zinchenko, Anuar Ismagambetov, Yuriy Kuzubov, Yuri Drozdovskij, Georgy Timoshenko, Roman Ovetchkin and Andrey Rychagov.
According to Chief arbiter R Anantharam, two Indian players  Shyam P Nikil (TN) and Bitan Banerjee (WB) secured IM norms on the day.
Anwesh Upadhyaya (6 points) led the campaign for host Orissa by posting a creditable draw against International Master Arghyadip Das. A win in the ninth round would have helped the local boy earn his first IM norm.
Orissa Woman International Masters Kiran Manisha Mohanty and Padmini Rout joined Upadhyaya at the sixth place with contrasting results. Kiran held IM Suvrajit Saha to a draw, while Rout notched up an impressive win over Woman Grand Master Natalia Zdebskaja (Ukraine).
Orissa’s two IMs experienced mixed luck with Swayangsu Satyapragyan (5.5) splitting point with Hasan Mehdi (Bangladesh) and Sekhar Chandra Sahu (5) going down to AK Kalshyam.
Among other well-known Orissa players, Soumya Ranjan Mishra, Utkal Ranjan Sahoo, Mohammad Ashraf, Pabitra Mohan Mohanty and Rajendra Kumar Sahu suffered defeats, while Sidhant Mohapatra and Manoj Kumar Panigrahi won their respective games.
RESULTS (Round 8):
Top 25 boards: Yaroslav Zinchenko (Ukr, 7) drew with Igor Kurnosov (Rus, 7.5), Anuar Ismagambetov (Kaz, 7) drew with Abhijeet Gupta (Ind, 7), Yuriy Kuzubov (Ukr, 7) bt Alexander Zubarev (Ukr, 6.5), Sergei Tiviakov (Ned, 6) lost to B Adhiban (Ind, 7), Saptarshi Roy Chowdhury (Ind, 6) lost to Yuri Drozdovskij (Ukr, 7), Serikbay Temirbayev (Kaz, 6.5) drew with Evgeny Vorobiov (Rus, 6.5), Georgy Timoshenko (Ukr, 7) bt Deep Sengupta (Ind, 6), Roman Ovetchkin (Rus, 7) bt Sriram Jha (Ind, 6), Ponnuswamy Konguvel (Ind, 6.5) drew with Enamul Hossain (Ban, 6.5), K Rathnakaran (Ind, 6) lost to Andrey Rychagov (Rus, 7), MS Thejkumar (Ind, 7) bt Sergey Vokarev (Rus, 6), Minhazuddin Ahmed (Ban, 6.5) drew with Neelotpal Das (Ind, 6.5), Rustam Khusnutdinov (Kaz, 6.5) drew with Rahul Sangma (Ind, 6.5), Amon Simutowe (Zam, 6) drew with Swapnil S Dhopade (Ind, 6.5), Vikramaditya Kamble (Ind, 6) drew with RR Laxman (Ind, 6), Deepan Chakkravarthy (Ind, 6) vs Debasish Das (Ind, Ori, 6), Aminul Kh Islam (Ban, 5.5) lost to Tejas Bakre (Ind, 6.5), SP Sethuraman (Ind, 6.5) bt Sashikant Kutwal (Ind, 5.5), Rahul Shetty (Ind, 5.5) lost to MR Venkatesh (Ind, 6.5), Anwesh Upadhyaya (Ind, Ori, 6) drew with Arghyadip Das (Ind, 6), Bitan Banerjee (Ind, 6) drew with K Priyadarshan (Ind, 6), Shreyansh Daklia Jain (Ind, 6.5) bt Niaz Murshed (Ban, 5.5), Mohammad Abdul Malek (Ban, 6.5) bt PDS Girinath (Ind, 5.5), Himanshu Sharma (Ind, 6.5) bt  Soumya Ranjan Mishra (Ind, Ori, 5.5), R Bhuvanesh Ramnath (Ind, 5.5) lost to Saptarshi Roy (Ind, 6.5).
Other Orissa results: Utkal Ranjan Sahoo (5.5) lost to Srinath Narayanan (Ind, 6.5), Kiran Manisha Mohanty (6) drew with Suvrajit Saha (Ind, 6), Mohammad Ashraf (5.5) lost to Nikhil P Shyam (Ind, 6.5), Pabitra Mohan Mohanty (5) lost to Alexander Fominyh (Rus, 6), Padmini Rout (6) bt Natalia Zdebskaja (Ukr, 5), Swayangsu Satyapragyan (5.5) drew with Mehdi Hasan (Ban, 5.5), Swayams Mishra (5.5) drew with Dinesh K Sharma (Ind, 5.5), Sekhar Chandra Sahu (5) lost to AK Kalshyan (Ind, 6), Krishan Soni (5) drew with Md Raibur Rahman (Ban, 5), Rajendra Kumar Sahu (4.5) lost to Manoj Kumar Panigrahi (Ind, Ori, 5.5), KD Pillai (4.5) lost to T Purushothaman (Ind, 5.5), GC Mohpatra (4.5) lost to Prantik Roy (Ind, 5.5), Biswajeet Nayak (4.5) lost to Hemant Sharma (Ind, 5.5), Debasis Chakrabarty (5.5) bt Chandrasish Majumdar (Ind, 4.5), Ranjan Mohanty (4.5) lost to GA Stany (Ind, 5), Subhransu Mohan Satpathy (5) bt PK Bihari (Ind, Ori, 4), Manas Parida (5) bt Aditya Chakraborty (Ind, 4), Sanjay Mishra (5) bt Sujendra Prasad Shrestha (Nep, 4), Sidhant Mohapatra (5) bt Kumud Kumar Nath (Ind, Ori, 4), Rajat Kumar Sahoo (5) bt Shyam Sundar Sharma (Ind, Ori, 4).