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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Kaa5 win in 5 half-moves
3 Kaa7 win in 5 half-moves
4 Kab5 win in 5 half-moves
5 Kab7 win in 5 half-moves
6 Kba5 win in 5 half-moves
7 Kba7 win in 5 half-moves
8 Kbb5 win in 5 half-moves
9 Kbb7 win in 5 half-moves
10 Kc5 win in 5 half-moves
11 Ra1 win in 5 half-moves
12 Rc1 win in 7 half-moves
13 Rb2 draw
14 Rb3 draw
15 Rb4 draw
16 Rg1 draw
17 Rh1 draw
18 Kc6 loss in 2 half-moves
19 Kc7 loss in 2 half-moves
20 Rd1 loss in 2 half-moves
21 Re1 loss in 2 half-moves
22 Rf1 loss in 2 half-moves