Reversi Puzzle for 2026-10-13
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You can solve this for practice (it does not count toward your streak).
Answer
F8 (Black +56)
Where the puzzles come from
We make the puzzles ourselves and use a solver (a program that searches for the answer) to check that each has exactly one solution. When we include a classic problem, we take the position from an original book whose copyright has expired and check it again with the same solver.