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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kc1 draw
3 Kc2 draw
4 Kc3 draw
5 Kd1 draw
6 Kd3 draw
7 Ke1 draw
8 Ke2 draw
9 Ke3 draw
10 Ra4 draw
11 Rc1 draw
12 Rc2 draw
13 Rc3 draw
14 Rc7 draw
15 Rc8 draw
16 Rd4 draw
17 Re4 draw
18 Rc5 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rg4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves