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 K3b2 draw
6 Ka1 draw
7 Ka4 draw
8 Kb1 draw
9 Ra7 draw
10 Rb8 draw
11 Rh7 draw
12 K2b3 loss in 2 half-moves
13 K3b3 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf7 loss in 2 half-moves
22 Rg7 loss in 2 half-moves