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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kb8 win in 3 half-moves
3 Ra1 win in 3 half-moves
4 Rc7 win in 3 half-moves
5 Rc8 win in 3 half-moves
6 Ka3 draw
7 Ka4 draw
8 Ka5 draw
9 Ka7 draw
10 Kb3 draw
11 Kb5 draw
12 Kc3 draw
13 Kc4 draw
14 Rb1 draw
15 Rc5 draw
16 Rc6 draw
17 Rd1 draw
18 Re1 draw
19 Kc5 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rc3 loss in 2 half-moves
22 Rc4 loss in 2 half-moves
23 Rf1 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rh1 loss in 2 half-moves