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Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Kf8 draw
3 Kgh7 draw
4 Khh7 draw
5 Ra1 draw
6 Rg2 draw
7 Rg3 draw
8 Rh1 draw
9 Kf7 loss in 2 half-moves
10 Kgg7 loss in 2 half-moves
11 Khg7 loss in 2 half-moves
12 Rb1 loss in 2 half-moves
13 Rc1 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Rf1 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Rg5 loss in 2 half-moves
19 Rg6 loss in 2 half-moves