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 Rb2 win in 3 half-moves
3 Rb3 win in 3 half-moves
4 Rb4 win in 5 half-moves
5 Kb5 draw
6 Kc5 draw
7 Kd5 draw
8 Ra8 draw
9 Rb5 draw
10 Rf8 draw
11 Rg8 draw
12 Rh8 draw
13 Kb3 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Ke1 loss in 2 half-moves
19 Ke2 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Kf1 loss in 2 half-moves
22 Kf3 loss in 2 half-moves
23 Kg1 loss in 2 half-moves
24 Kg2 loss in 2 half-moves
25 Kg3 loss in 2 half-moves
26 Rb6 loss in 2 half-moves
27 Rb7 loss in 2 half-moves
28 Rc8 loss in 2 half-moves
29 Rd8 loss in 2 half-moves
30 Re8 loss in 2 half-moves