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 K2b2 draw
5 K2b3 draw
6 K3b2 draw
7 K3b3 draw
8 Ka1 draw
9 Ka4 draw
10 Kb1 draw
11 Kb4 draw
12 Ra8 draw
13 Rb4 draw
14 Rc8 draw
15 Rd8 draw
16 Rh8 draw
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves