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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 K1b1 draw
3 K1b2 draw
4 K2b1 draw
5 K2b2 draw
6 Ka3 draw
7 Kb3 draw
8 Rc1 draw
9 Rd7 draw
10 Re1 draw
11 Rf1 draw
12 Rd2 loss in 2 half-moves
13 Rd3 loss in 2 half-moves
14 Rd4 loss in 2 half-moves
15 Rd5 loss in 2 half-moves
16 Rd6 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Rg1 loss in 2 half-moves
19 Rh1 loss in 2 half-moves