1n1qkb1r/2p2pp1/r2p1n2/1p2p2p/p2PP3/2P2PPR/PP1K4/RNBQ1BN1 w k - 0 10
FEN state: 1n1qkb1r/2p2pp1/r2p1n2/1p2p2p/p2PP3/2P2PPR/PP1K4/RNBQ1BN1 w k - 0 10 ; Best move: f1b5
The current state of the chess board is: Black knight at b8, black queen at d8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at c7, black pawn at f7 and black pawn at g7. Black rook at a6, black pawn at d6 and black knight at f6. Black pawn at b5, black pawn at e5 and black pawn at h5. Black pawn at a4, white pawn at d4 and white pawn at e4. White pawn at c3, white pawn at f3, white pawn at g3 and white rook at h3. White pawn at a2, white pawn at b2 and white king at d2. White rook at a1, white knight at b1, white bishop at c1, white queen at d1, white bishop at f1 and white knight at g1. Black kingside is the only castle move available. Half move number is 0. Full move number is 10. White to move.