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 Kb3 draw
3 Kb4 draw
4 Kc4 draw
5 Kd2 draw
6 Kd3 draw
7 Kd4 draw
8 Ra4 draw
9 Rb4 draw
10 Rc4 draw
11 Rd4 draw
12 Re1 draw
13 Re2 draw
14 Re3 draw
15 Kb2 loss in 4 half-moves
16 Kc2 loss in 4 half-moves
17 Re5 loss in 4 half-moves
18 Re6 loss in 2 half-moves
19 Re7 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves