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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Rd3 win in 3 half-moves
3 Kc6 win in 5 half-moves
4 Kd6 win in 5 half-moves
5 Rc1 win in 11 half-moves
6 Kb4 draw
7 Kb5 draw
8 Kcc4 draw
9 Kcd5 draw
10 Kd3 draw
11 Kdd5 draw
12 Ra1 draw
13 Rd2 draw
14 Kc3 loss in 2 half-moves
15 Kdc4 loss in 2 half-moves
16 Ke3 loss in 2 half-moves
17 Ke4 loss in 2 half-moves
18 Ke5 loss in 2 half-moves
19 Rb1 loss in 2 half-moves
20 Re1 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rg1 loss in 2 half-moves
23 Rh1 loss in 2 half-moves