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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb4 win in 3 half-moves
3 Kc1 draw
4 Kc2 draw
5 Kc3 draw
6 Kd1 draw
7 Kd3 draw
8 Kde2 draw
9 Kde3 draw
10 Ke1 draw
11 Kf2 draw
12 Kfe2 draw
13 Kfe3 draw
14 Kg2 draw
15 Kg3 draw
16 Kg4 draw
17 Ra8 draw
18 Rb2 draw
19 Rb3 draw
20 Rh8 draw
21 Ke4 loss in 2 half-moves
22 Kf4 loss in 2 half-moves
23 Rb5 loss in 2 half-moves
24 Rb6 loss in 2 half-moves
25 Rb7 loss in 2 half-moves
26 Rc8 loss in 2 half-moves
27 Rd8 loss in 2 half-moves
28 Re8 loss in 2 half-moves
29 Rf8 loss in 2 half-moves
30 Rg8 loss in 2 half-moves