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 Rb3 win in 3 half-moves
3 Rb2 draw
4 Rb4 draw
5 Rb5 draw
6 Rc8 draw
7 Rd8 draw
8 Re8 draw
9 Rg8 draw
10 K1b1 loss in 2 half-moves
11 K1b2 loss in 2 half-moves
12 K2b1 loss in 2 half-moves
13 K2b2 loss in 2 half-moves
14 Ka3 loss in 2 half-moves
15 Kb3 loss in 2 half-moves
16 Ra8 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves