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 Ka2 draw
3 Kb2 draw
4 R1a5 draw
5 R6a2 draw
6 R6a3 draw
7 R6a4 draw
8 R6a5 draw
9 Ra7 draw
10 Ra8 draw
11 Rb6 draw
12 Rc6 draw
13 Rd6 draw
14 Re6 draw
15 Rf6 draw
16 R1a2 loss in 2 half-moves
17 R1a3 loss in 2 half-moves
18 Kc1 loss in 1 half-moves
19 Kc2 loss in 1 half-moves
20 Rg6 loss in 1 half-moves
21 Rh6 loss in 1 half-moves