Most Single-Digit Mental Arithmetic Addition Problems (Three Rows) Solved While Playing Chess Simultaneously in 60 Minutes by an Individual (Minor-Male)
EWR20268433
Most Single-Digit Mental Arithmetic Addition Problems (Three Rows) Solved While Playing Chess Simultaneously in 60 Minutes by an Individual (Minor-Male)
Amazing Human Feats
23-Jul-2026
India
The Most Single-Digit Mental Arithmetic Addition Problems (Three Rows) Solved While Playing Chess Simultaneously in 60 Minutes by an Individual (Minor-Male) counted to 548 problems while simultaneously playing chess against 12 opponents, was set by G Jagdheeswar, Grade-X, MCC Public School in Chennai District, Tamil Nadu, India on July 23, 2026.
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Most Single-Digit Mental Arithmetic Addition Problems (Three Rows) Solved While Playing Chess Simultaneously in 60 Minutes by an Individual (Minor-Male)