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

EGTB: win in 2 half-moves

# move score
1 Rf4 win in 1 half-moves
2 K2b2 win in 3 half-moves
3 K2b3 win in 3 half-moves
4 K3b3 win in 3 half-moves
5 Ka1 win in 3 half-moves
6 Ka4 win in 3 half-moves
7 Kb1 win in 3 half-moves
8 Ra4 win in 3 half-moves
9 Rb1 win in 3 half-moves
10 Rb2 win in 3 half-moves
11 Rb3 win in 3 half-moves
12 K3b2 draw
13 Rb5 draw
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves