r1bn2nr/1pqk3p/p2N2p1/2ppp3/5PPb/6BP/PPPQP1B1/2R1K2R w K - 6 20
FEN state: r1bn2nr/1pqk3p/p2N2p1/2ppp3/5PPb/6BP/PPPQP1B1/2R1K2R w K - 6 20 ; Best move: g3h4
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at d8, black knight at g8 and black rook at h8. Black pawn at b7, black queen at c7, black king at d7 and black pawn at h7. Black pawn at a6, white knight at d6 and black pawn at g6. Black pawn at c5, black pawn at d5 and black pawn at e5. White pawn at f4, white pawn at g4 and black bishop at h4. White bishop at g3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2, white queen at d2, white pawn at e2 and white bishop at g2. White rook at c1, white king at e1 and white rook at h1. White kingside is the only castle move available. Half move number is 6. Full move number is 20. White to move.