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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 K1a1 draw
3 K1a2 draw
4 K1c1 draw
5 K1c2 draw
6 K2a1 draw
7 K2a2 draw
8 K2c1 draw
9 K2c2 draw
10 Ka3 draw
11 Ra7 draw
12 Rb8 draw
13 Rh7 draw
14 Kb3 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rd7 loss in 2 half-moves
21 Re7 loss in 2 half-moves
22 Rf7 loss in 2 half-moves
23 Rg7 loss in 2 half-moves