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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Kb1 draw
3 Kb2 draw
4 Kb3 draw
5 Kb5 draw
6 Kb6 draw
7 Kb7 draw
8 Kc1 draw
9 Kc3 draw
10 Kc5 draw
11 Kc7 draw
12 Kd1 draw
13 Kd2 draw
14 Kd3 draw
15 Kd7 draw
16 Ra4 draw
17 Rc4 draw
18 Rd4 draw
19 Re1 draw
20 Re2 draw
21 Re3 draw
22 Re8 draw
23 Kd5 loss in 2 half-moves
24 Kd6 loss in 2 half-moves
25 Re5 loss in 2 half-moves
26 Re6 loss in 2 half-moves
27 Re7 loss in 2 half-moves
28 Rf4 loss in 2 half-moves
29 Rg4 loss in 2 half-moves
30 Rh4 loss in 2 half-moves