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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Rb6 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Ka5 draw
5 Ka8 draw
6 Kaa7 draw
7 Kab7 draw
8 Kb5 draw
9 Kb6 draw
10 Kba7 draw
11 Kbb7 draw
12 Kc7 draw
13 Kc8 draw
14 Ra4 draw
15 Rh4 draw
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rg4 loss in 2 half-moves