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

EGTB: win in 4 half-moves

# move score
1 R1a4 win in 3 half-moves
2 Kc1 draw
3 R1a5 draw
4 R1a6 draw
5 R7a4 draw
6 R7a5 draw
7 R7a6 draw
8 Ra8 draw
9 Re7 draw
10 Ka2 loss in 2 half-moves
11 R1a2 loss in 2 half-moves
12 R1a3 loss in 2 half-moves
13 R7a2 loss in 2 half-moves
14 R7a3 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rc7 loss in 2 half-moves
17 Rd7 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Rh7 loss in 2 half-moves
21 Kb2 loss in 1 half-moves
22 Kc2 loss in 1 half-moves