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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Ra7 draw
3 Rc7 draw
4 Rg2 draw
5 Rg4 draw
6 Rg5 draw
7 Rg6 draw
8 Rh7 draw
9 K6b7 loss in 2 half-moves
10 K6c7 loss in 2 half-moves
11 K6d7 loss in 2 half-moves
12 K8b7 loss in 2 half-moves
13 K8c7 loss in 2 half-moves
14 K8d7 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Kb8 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Kd6 loss in 2 half-moves
21 Kd8 loss in 2 half-moves
22 Rd7 loss in 2 half-moves
23 Re7 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rg1 loss in 2 half-moves
26 Rg3 loss in 2 half-moves
27 Rg8 loss in 2 half-moves