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1
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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 Rb8 win in 3 half-moves
2 Ka7 win in 5 half-moves
3 Kb7 win in 5 half-moves
4 Rc8 win in 5 half-moves
5 Rd8 win in 5 half-moves
6 Kb6 win in 9 half-moves
7 Ka4 draw
8 Ka6 draw
9 Kb4 draw
10 Kb5 draw
11 Kb8 draw
12 Rh2 draw
13 Rh7 draw
14 Re8 loss in 2 half-moves
15 Rf8 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Rh1 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 Rh4 loss in 2 half-moves
20 Rh5 loss in 2 half-moves
21 Rh6 loss in 2 half-moves