rnq1k2r/p2p3p/bpp3pn/3Npp2/1bP4P/1P3P2/P1QPP1P1/RNB1KB1R w KQkq - 2 10
FEN state: rnq1k2r/p2p3p/bpp3pn/3Npp2/1bP4P/1P3P2/P1QPP1P1/RNB1KB1R w KQkq - 2 10 ; Best move: d5b4
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at c8, black king at e8 and black rook at h8. Black pawn at a7, black pawn at d7 and black pawn at h7. Black bishop at a6, black pawn at b6, black pawn at c6, black pawn at g6 and black knight at h6. White knight at d5, black pawn at e5 and black pawn at f5. Black bishop at b4, white pawn at c4 and white pawn at h4. White pawn at b3 and white pawn at f3. White pawn at a2, white queen at c2, white pawn at d2, white pawn at e2 and white pawn at g2. White rook at a1, white knight at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside, white queenside, black kingside and black queenside castles are available. Half move number is 2. Full move number is 10. White to move.