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

EGTB: win in 4 half-moves

# move score
1 K3b4 win in 3 half-moves
2 K5b4 win in 3 half-moves
3 Ka2 win in 5 half-moves
4 Kb2 win in 5 half-moves
5 Kb3 win in 5 half-moves
6 Kb5 win in 5 half-moves
7 Rb8 win in 5 half-moves
8 Rc5 win in 5 half-moves
9 Rc6 win in 5 half-moves
10 K3a4 draw
11 K5a4 draw
12 Ka6 draw
13 Kb6 draw
14 Ra8 draw
15 Rc1 draw
16 Rc7 draw
17 Rd8 draw
18 Re8 draw
19 Rf8 draw
20 Rc2 loss in 2 half-moves
21 Rc3 loss in 2 half-moves
22 Rc4 loss in 2 half-moves
23 Rg8 loss in 2 half-moves
24 Rh8 loss in 2 half-moves