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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Ke8 draw
3 Kg1 draw
4 Kg2 draw
5 Kg8 draw
6 Kh2 draw
7 Ra7 draw
8 Rf7 draw
9 Rg5 draw
10 Rg6 draw
11 Rb7 loss in 2 half-moves
12 Rc7 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Rg1 loss in 2 half-moves
15 Rg2 loss in 2 half-moves
16 Rg3 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh7 loss in 2 half-moves
19 Ke7 loss in 1 half-moves
20 Kf7 loss in 1 half-moves
21 Re7 loss in 1 half-moves