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 Kcd4 win in 3 half-moves
5 Kd6 win in 3 half-moves
6 Rb1 win in 3 half-moves
7 Re1 win in 3 half-moves
8 Kc2 win in 5 half-moves
9 Kd2 win in 5 half-moves
10 Kd5 win in 5 half-moves
11 Ke2 win in 5 half-moves
12 Rc2 win in 5 half-moves
13 Rc3 win in 5 half-moves
14 Rc4 win in 5 half-moves
15 Kc6 win in 9 half-moves
16 Ke3 win in 11 half-moves
17 Ke4 win in 15 half-moves
18 Kc3 draw
19 Kcc4 draw
20 Kdc4 draw
21 Kdd4 draw
22 Ra1 draw
23 Rd1 draw
24 Rf1 draw
25 Rg1 loss in 2 half-moves
26 Rh1 loss in 2 half-moves