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 Ka2 win in 5 half-moves
3 Kb2 win in 5 half-moves
4 Rc1 win in 5 half-moves
5 Re1 win in 5 half-moves
6 Kb1 win in 7 half-moves
7 Kb3 win in 7 half-moves
8 Kb4 win in 9 half-moves
9 Ka3 draw
10 Ka5 draw
11 Kb5 draw
12 Rd2 draw
13 Rd7 draw
14 Rd3 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Rd6 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rh1 loss in 2 half-moves