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

EGTB: win in 4 half-moves

# move score
1 Kb1 win in 3 half-moves
2 Kb3 win in 3 half-moves
3 Ra6 win in 3 half-moves
4 Rb6 win in 3 half-moves
5 Ka1 draw
6 Ka3 draw
7 Rc7 draw
8 Rc8 draw
9 Rd6 draw
10 Rg6 draw
11 Kb2 loss in 2 half-moves
12 Rc1 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rc3 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rc5 loss in 2 half-moves
17 Re6 loss in 2 half-moves
18 Rf6 loss in 2 half-moves
19 Rh6 loss in 2 half-moves