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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ra4 draw
3 Rf3 draw
4 Rf6 draw
5 Kb6 loss in 2 half-moves
6 Kb7 loss in 2 half-moves
7 Kcc5 loss in 2 half-moves
8 Kcc7 loss in 2 half-moves
9 Kcd5 loss in 2 half-moves
10 Kcd7 loss in 2 half-moves
11 Kdc5 loss in 2 half-moves
12 Kdc7 loss in 2 half-moves
13 Kdd5 loss in 2 half-moves
14 Kdd7 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ke7 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rc4 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rf2 loss in 2 half-moves
24 Rf5 loss in 2 half-moves
25 Rf7 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg4 loss in 2 half-moves
28 Rh4 loss in 2 half-moves