r2qkb1r/1ppbp2p/5pp1/6nP/p1PQ2P1/2NPB3/PPn1PP2/R2K1BNR b kq - 6 15
FEN state: r2qkb1r/1ppbp2p/5pp1/6nP/p1PQ2P1/2NPB3/PPn1PP2/R2K1BNR b kq - 6 15 ; Best move: c2d4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black pawn at c7, black bishop at d7, black pawn at e7 and black pawn at h7. Black pawn at f6 and black pawn at g6. Black knight at g5 and white pawn at h5. Black pawn at a4, white pawn at c4, white queen at d4 and white pawn at g4. White knight at c3, white pawn at d3 and white bishop at e3. White pawn at a2, white pawn at b2, black knight at c2, white pawn at e2 and white pawn at f2. White rook at a1, white king at d1, white bishop at f1, white knight at g1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 6. Full move number is 15. Black to move.