r4b2/3Pkppr/pp5n/2pp3p/1P2NP2/B3P3/P1R3PP/RN2KB2 b Q - 0 25
FEN state: r4b2/3Pkppr/pp5n/2pp3p/1P2NP2/B3P3/P1R3PP/RN2KB2 b Q - 0 25 ; Best move: d5e4
The current state of the chess board is: Black rook at a8 and black bishop at f8. White pawn at d7, black king at e7, black pawn at f7, black pawn at g7 and black rook at h7. Black pawn at a6, black pawn at b6 and black knight at h6. Black pawn at c5, black pawn at d5 and black pawn at h5. White pawn at b4, white knight at e4 and white pawn at f4. White bishop at a3 and white pawn at e3. White pawn at a2, white rook at c2, white pawn at g2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1 and white bishop at f1. White queenside is the only castle move available. Half move number is 0. Full move number is 25. Black to move.