r1bqkb2/ppppp3/n4pp1/P2r1PP1/1PPPn2p/N7/2QBP2P/R3KBNR b KQ - 0 15
FEN state: r1bqkb2/ppppp3/n4pp1/P2r1PP1/1PPPn2p/N7/2QBP2P/R3KBNR b KQ - 0 15 ; Best move: d5d4
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 bishop at f8. Black pawn at a7, black pawn at b7, black pawn at c7, black pawn at d7 and black pawn at e7. Black knight at a6, black pawn at f6 and black pawn at g6. White pawn at a5, black rook at d5, white pawn at f5 and white pawn at g5. White pawn at b4, white pawn at c4, white pawn at d4, black knight at e4 and black pawn at h4. White knight at a3. White queen at c2, white bishop at d2, white pawn at e2 and white pawn at h2. White rook at a1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 0. Full move number is 15. Black to move.