r1b1kb1r/1pq1p2p/1Np1nQpn/p2pB3/2PPp2P/5P2/PP4P1/1R2KBNR w K - 2 19
FEN state: r1b1kb1r/1pq1p2p/1Np1nQpn/p2pB3/2PPp2P/5P2/PP4P1/1R2KBNR w K - 2 19 ; Best move: b6a8
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at e8, black bishop at f8 and black rook at h8. Black pawn at b7, black queen at c7, black pawn at e7 and black pawn at h7. White knight at b6, black pawn at c6, black knight at e6, white queen at f6, black pawn at g6 and black knight at h6. Black pawn at a5, black pawn at d5 and white bishop at e5. White pawn at c4, white pawn at d4, black pawn at e4 and white pawn at h4. White pawn at f3. White pawn at a2, white pawn at b2 and white pawn at g2. White rook at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 2. Full move number is 19. White to move.