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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 Rb3 win in 3 half-moves
2 K2b2 draw
3 K3b2 draw
4 Ka1 draw
5 Ka4 draw
6 Kb1 draw
7 Rf1 draw
8 Rf2 draw
9 Rf7 draw
10 Rg3 draw
11 Rh3 draw
12 K2b3 loss in 2 half-moves
13 K3b3 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rf8 loss in 2 half-moves