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 Kb4 draw
3 Kb5 draw
4 Kc4 draw
5 Kd4 draw
6 Kd5 draw
7 Ra4 draw
8 Rb4 draw
9 Rc4 draw
10 Re1 draw
11 Re2 draw
12 Re3 draw
13 Re5 draw
14 Re6 draw
15 Kb6 loss in 2 half-moves
16 Kc6 loss in 2 half-moves
17 Kd6 loss in 2 half-moves
18 Rd4 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