rnbqk1n1/pp1p3r/4pp1b/2p1P1Np/1PP2P2/6P1/P2P1K1P/RNBQ1B1R w q - 0 10
FEN state: rnbqk1n1/pp1p3r/4pp1b/2p1P1Np/1PP2P2/6P1/P2P1K1P/RNBQ1B1R w q - 0 10 ; Best move: d1h5
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8, black king at e8 and black knight at g8. Black pawn at a7, black pawn at b7, black pawn at d7 and black rook at h7. Black pawn at e6, black pawn at f6 and black bishop at h6. Black pawn at c5, white pawn at e5, white knight at g5 and black pawn at h5. White pawn at b4, white pawn at c4 and white pawn at f4. White pawn at g3. White pawn at a2, white pawn at d2, white king at f2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Black queenside is the only castle move available. Half move number is 0. Full move number is 10. White to move.