r1bqk1r1/pp3p1p/2p4n/1P1pp1p1/1bPPQ2P/5PP1/RP1BP2R/1N2KBN1 b q - 1 15
FEN state: r1bqk1r1/pp3p1p/2p4n/1P1pp1p1/1bPPQ2P/5PP1/RP1BP2R/1N2KBN1 b q - 1 15 ; Best move: b4d2
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at e8 and black rook at g8. Black pawn at a7, black pawn at b7, black pawn at f7 and black pawn at h7. Black pawn at c6 and black knight at h6. White pawn at b5, black pawn at d5, black pawn at e5 and black pawn at g5. Black bishop at b4, white pawn at c4, white pawn at d4, white queen at e4 and white pawn at h4. White pawn at f3 and white pawn at g3. White rook at a2, white pawn at b2, white bishop at d2, white pawn at e2 and white rook at h2. White knight at b1, white king at e1, white bishop at f1 and white knight at g1. Black queenside is the only castle move available. Half move number is 1. Full move number is 15. Black to move.