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

EGTB: win in 18 half-moves

# move score
1 Rf4 win in 17 half-moves
2 Kg3 draw
3 Kg4 draw
4 Kg5 draw
5 Rb1 draw
6 Rb2 draw
7 Rb6 draw
8 Rc4 draw
9 Rd4 draw
10 Re4 draw
11 Rg4 draw
12 Kd7 loss in 2 half-moves
13 Kd8 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Kf7 loss in 2 half-moves
16 Kf8 loss in 2 half-moves
17 Kh3 loss in 2 half-moves
18 Kh5 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Rb3 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rb8 loss in 2 half-moves