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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 Rf4 win in 3 half-moves
2 Rf5 win in 3 half-moves
3 Rf6 win in 3 half-moves
4 Ra8 win in 5 half-moves
5 K4b4 win in 7 half-moves
6 K5b5 win in 7 half-moves
7 Kb6 win in 7 half-moves
8 Rc8 win in 7 half-moves
9 Rd8 win in 7 half-moves
10 Re8 win in 7 half-moves
11 Rh8 win in 7 half-moves
12 K4b5 win in 11 half-moves
13 Ka6 win in 11 half-moves
14 Rf7 draw
15 Rg8 draw
16 K5b4 loss in 2 half-moves
17 Ka3 loss in 2 half-moves
18 Kb3 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rf3 loss in 2 half-moves