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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka3 draw
5 Kb3 draw
6 Kbb1 draw
7 Kbc2 draw
8 Kc3 draw
9 Kcb1 draw
10 Kcc2 draw
11 Kd1 draw
12 Kd2 draw
13 Ra8 draw
14 Rb4 draw
15 Rc8 draw
16 Rd8 draw
17 Rh8 draw
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf8 loss in 2 half-moves
23 Rg8 loss in 2 half-moves