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 K4a5 draw
3 K6a5 draw
4 Ka3 draw
5 Ka7 draw
6 Kb3 draw
7 Kb7 draw
8 Ra1 draw
9 Rc2 draw
10 Rc3 draw
11 Rc8 draw
12 Rg1 draw
13 Rh1 draw
14 K4b5 loss in 2 half-moves
15 K6b5 loss in 2 half-moves
16 Kb4 loss in 2 half-moves
17 Kb6 loss in 2 half-moves
18 Rc4 loss in 2 half-moves
19 Rc5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rd1 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Rf1 loss in 2 half-moves