1r2kb1r/pb1pp2p/6Rn/2p2P2/pnPP3p/7N/1B1K1PP1/R2Q1B2 w k - 1 18
FEN state: 1r2kb1r/pb1pp2p/6Rn/2p2P2/pnPP3p/7N/1B1K1PP1/R2Q1B2 w k - 1 18 ; Best move: d4d5
The current state of the chess board is: Black rook at b8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at d7, black pawn at e7 and black pawn at h7. White rook at g6 and black knight at h6. Black pawn at c5 and white pawn at f5. Black pawn at a4, black knight at b4, white pawn at c4, white pawn at d4 and black pawn at h4. White knight at h3. White bishop at b2, white king at d2, white pawn at f2 and white pawn at g2. White rook at a1, white queen at d1 and white bishop at f1. Black kingside is the only castle move available. Half move number is 1. Full move number is 18. White to move.