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 Ka4 win in 7 half-moves
3 Kb4 win in 7 half-moves
4 K1a2 draw
5 K1b2 draw
6 K3a2 draw
7 K3b2 draw
8 Kb1 draw
9 Kb3 draw
10 Rc3 draw
11 Rd1 draw
12 Rd2 draw
13 Rd4 draw
14 Rd8 draw
15 Re3 draw
16 Rf3 draw
17 Rd5 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Rg3 loss in 2 half-moves
21 Rh3 loss in 2 half-moves