r1bqnb1r/1kn2ppp/1p1pp3/p3P3/1pPB3P/N2B4/P2PQPPN/1R2K2R w K - 12 18
FEN state: r1bqnb1r/1kn2ppp/1p1pp3/p3P3/1pPB3P/N2B4/P2PQPPN/1R2K2R w K - 12 18 ; Best move: h2f3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black knight at e8, black bishop at f8 and black rook at h8. Black king at b7, black knight at c7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6, black pawn at d6 and black pawn at e6. Black pawn at a5 and white pawn at e5. Black pawn at b4, white pawn at c4, white bishop at d4 and white pawn at h4. White knight at a3 and white bishop at d3. White pawn at a2, white pawn at d2, white queen at e2, white pawn at f2, white pawn at g2 and white knight at h2. White rook at b1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 12. Full move number is 18. White to move.