Tsume Othello #5622221 (empty 12)

To move: Black — find the best move

a

b

c

d

e

f

g

h

1

2

3

4

5

6

7

8

32 20

📖 Related reading

Othello (Reversi) Intermediate: X-Squares, C-Squares, Stable Discs, and ParityOnce you know corners and mobility, the next step is not handing your opponent a corner — X-squares and C-squares — plus stable discs that never flip, and the parity (even theory) that decides close endgames.