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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rb1 win in 11 half-moves
3 Rb3 win in 11 half-moves
4 Rb4 win in 11 half-moves
5 Ka6 draw
6 Kaa7 draw
7 Kab8 draw
8 Kb6 draw
9 Kba7 draw
10 Kbb8 draw
11 Kc6 draw
12 Kc7 draw
13 Kc8 draw
14 Ra5 draw
15 Rc5 draw
16 Rd5 draw
17 Rh5 draw
18 Rb6 loss in 2 half-moves
19 Re5 loss in 2 half-moves
20 Rf5 loss in 2 half-moves
21 Rg5 loss in 2 half-moves