All questions asked by CHRD

List all solved & unsolved questions asked by CHRD

Alternative to pandas groupby with lambda and diff

2 Stack Overflow Asked on 11/24/2021

dataframe lambda pandas pandas groupby python

Missing numbers inside square

3 Puzzling Asked on 12/22/2020

calculation puzzle mathematics visual

Move one digit to make the equation $62-63=1$ true

2 Puzzling Asked on 12/22/2020

The total cost of salaries in a company

12 Puzzling Asked on 12/22/2020

Follow Suit Maze

1 Puzzling Asked on 12/21/2020

Paying bills in Alphagonia

2 Puzzling Asked on 12/21/2020

mathematics number theory

TEST QI puzzle - squares and circles on a 4x4 grid

1 Puzzling Asked on 12/21/2020

pattern progressive matrix visual

Fastest draw from opening position in chess

2 Puzzling Asked on 12/21/2020

checkerboard chess optimization

My prefix is a sneaky ad, My suffix is not yet closed

1 Puzzling Asked on 12/20/2020

Equations in sentences?

2 Puzzling Asked on 12/19/2020

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