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

EGTB: win in 2 half-moves

# move score
1 Rf8 win in 1 half-moves
2 Ka5 draw
3 Ka8 draw
4 Ra8 draw
5 Rb1 draw
6 Rb2 draw
7 Rb3 draw
8 Rb4 draw
9 K6b6 loss in 2 half-moves
10 K6b7 loss in 2 half-moves
11 K7b6 loss in 2 half-moves
12 K7b7 loss in 2 half-moves
13 Kb5 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves