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

EGTB: win in 8 half-moves

# move score
1 Ra8 win in 7 half-moves
2 Ka1 draw
3 Ka2 draw
4 Ka3 draw
5 Kbb1 draw
6 Kbc1 draw
7 Kcb1 draw
8 Kcc1 draw
9 Kd1 draw
10 Kd2 draw
11 Rb7 draw
12 Rf8 draw
13 Kbb3 loss in 2 half-moves
14 Kbc3 loss in 2 half-moves
15 Kcb3 loss in 2 half-moves
16 Kcc3 loss in 2 half-moves
17 Kd3 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rb6 loss in 2 half-moves
22 Rc8 loss in 2 half-moves
23 Rd8 loss in 2 half-moves
24 Re8 loss in 2 half-moves
25 Rg8 loss in 2 half-moves
26 Rh8 loss in 2 half-moves