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 Rb4 win in 3 half-moves
3 Rc4 win in 3 half-moves
4 Kb2 draw
5 Kb3 draw
6 Kc2 draw
7 Kc4 draw
8 Kcd2 draw
9 Kcd3 draw
10 Ke2 draw
11 Ked2 draw
12 Ked3 draw
13 Kf2 draw
14 Kf3 draw
15 Ra4 draw
16 Rd1 draw
17 Rd2 draw
18 Rd3 draw
19 Rd8 draw
20 Rh4 draw
21 Ke4 loss in 2 half-moves
22 Kf4 loss in 2 half-moves
23 Rd5 loss in 2 half-moves
24 Rd6 loss in 2 half-moves
25 Rd7 loss in 2 half-moves
26 Re4 loss in 2 half-moves
27 Rf4 loss in 2 half-moves
28 Rg4 loss in 2 half-moves