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

EGTB: win in 4 half-moves

# move score
1 K3b3 win in 3 half-moves
2 K4b3 win in 3 half-moves
3 K4b4 win in 3 half-moves
4 Kb2 win in 3 half-moves
5 Kb5 win in 3 half-moves
6 Rb1 win in 3 half-moves
7 Ka2 win in 5 half-moves
8 K3b4 draw
9 Ka5 draw
10 Ra1 draw
11 Rc2 draw
12 Rc8 draw
13 Rd1 draw
14 Re1 draw
15 Rf1 draw
16 Rc3 loss in 2 half-moves
17 Rc4 loss in 2 half-moves
18 Rc5 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh1 loss in 2 half-moves