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 Rf7 draw
3 Rf8 draw
4 Kc1 loss in 2 half-moves
5 Kc2 loss in 2 half-moves
6 Kc3 loss in 2 half-moves
7 Kd1 loss in 2 half-moves
8 Kd3 loss in 2 half-moves
9 Kde2 loss in 2 half-moves
10 Kde3 loss in 2 half-moves
11 Ke1 loss in 2 half-moves
12 Ke4 loss in 2 half-moves
13 Kf2 loss in 2 half-moves
14 Kfe2 loss in 2 half-moves
15 Kfe3 loss in 2 half-moves
16 Kg2 loss in 2 half-moves
17 Kg3 loss in 2 half-moves
18 Kg4 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Re4 loss in 2 half-moves
23 Rf5 loss in 2 half-moves
24 Rf6 loss in 2 half-moves
25 Rg4 loss in 2 half-moves
26 Rh4 loss in 2 half-moves