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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kb6 win in 3 half-moves
4 Kc7 win in 3 half-moves
5 Kd6 win in 5 half-moves
6 Rb1 win in 9 half-moves
7 Rc7 win in 9 half-moves
8 Ka4 draw
9 Ka6 draw
10 Kc6 draw
11 Kc8 draw
12 Kd8 draw
13 Ke6 draw
14 Ke7 draw
15 Ke8 draw
16 Ra1 draw
17 Rc8 draw
18 Rd1 draw
19 Re1 draw
20 Rf1 draw
21 Rc2 loss in 2 half-moves
22 Rc3 loss in 2 half-moves
23 Rc4 loss in 2 half-moves
24 Rc5 loss in 2 half-moves
25 Rc6 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves