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 Kaa1 draw
3 Kaa3 draw
4 Kab1 draw
5 Kab3 draw
6 Kba1 draw
7 Kba3 draw
8 Kbb1 draw
9 Kbb3 draw
10 Kc1 draw
11 Kc2 draw
12 Kc3 draw
13 Ra4 draw
14 Rb8 draw
15 Rc4 draw
16 Rd4 draw
17 Rh4 draw
18 Rb5 loss in 2 half-moves
19 Rb6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Re4 loss in 2 half-moves
22 Rf4 loss in 2 half-moves
23 Rg4 loss in 2 half-moves