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End This Game As Quick As Possible!

Logic Level 2

Black to move and mate in 2.

Which piece should Black move first?

Pawn on a7 Pawn on f7 Pawn on g5 Pawn on h5 Bishop on e3 Rook on d2 King on h7

Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, conceptual quizzes.

Our wiki is made for math and science

Master advanced concepts through explanations,
examples, and problems from the community.

Used and loved by 4 million people

Learn from a vibrant community of students and enthusiasts,
including olympiad champions, researchers, and professionals.

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by Omar Sehlouli

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