r2qk1nr/pb1np3/1p5b/2p1N1pp/1PP1pP2/P1N5/3PK1PP/R1B2B1R b kq - 3 15
FEN state: r2qk1nr/pb1np3/1p5b/2p1N1pp/1PP1pP2/P1N5/3PK1PP/R1B2B1R b kq - 3 15 ; Best move: g5f4
The current state of the chess board is: Black rook at a8, black queen at d8, black king at e8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black knight at d7 and black pawn at e7. Black pawn at b6 and black bishop at h6. Black pawn at c5, white knight at e5, black pawn at g5 and black pawn at h5. White pawn at b4, white pawn at c4, black pawn at e4 and white pawn at f4. White pawn at a3 and white knight at c3. White pawn at d2, white king at e2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white bishop at f1 and white rook at h1. Black kingside and black queenside castles are available. Half move number is 3. Full move number is 15. Black to move.