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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Kb3 win in 3 half-moves
3 Kc3 win in 3 half-moves
4 Kcb5 win in 3 half-moves
5 Kcc5 win in 3 half-moves
6 Kd3 win in 3 half-moves
7 Kd5 win in 3 half-moves
8 Rb3 win in 3 half-moves
9 Rb5 win in 3 half-moves
10 Ka5 win in 5 half-moves
11 Ka6 win in 5 half-moves
12 Ka7 win in 5 half-moves
13 Kb7 win in 5 half-moves
14 Kbc5 win in 5 half-moves
15 Kc6 win in 5 half-moves
16 Kc7 win in 5 half-moves
17 Kd4 win in 5 half-moves
18 Ra4 win in 5 half-moves
19 Rb2 win in 5 half-moves
20 Kbb5 draw