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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rc4 win in 3 half-moves
3 Rc5 win in 3 half-moves
4 Rc6 win in 3 half-moves
5 Ka6 win in 5 half-moves
6 Kb6 win in 5 half-moves
7 Ra8 win in 5 half-moves
8 Ka2 draw
9 Ka4 draw
10 Kb1 draw
11 Kb2 draw
12 Kb4 draw
13 Kb5 draw
14 Rc3 draw
15 Rc7 draw
16 Rd8 draw
17 Re8 draw
18 Rf8 draw
19 Rc1 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves