r1q2N1r/p2pn3/n1pP1kp1/1Pp1pp1p/6P1/5N1Q/1P2PP1P/1RB1KB1R w K - 3 20
FEN state: r1q2N1r/p2pn3/n1pP1kp1/1Pp1pp1p/6P1/5N1Q/1P2PP1P/1RB1KB1R w K - 3 20 ; Best move: h3h4
The current state of the chess board is: Black rook at a8, black queen at c8, white knight at f8 and black rook at h8. Black pawn at a7, black pawn at d7 and black knight at e7. Black knight at a6, black pawn at c6, white pawn at d6, black king at f6 and black pawn at g6. White pawn at b5, black pawn at c5, black pawn at e5, black pawn at f5 and black pawn at h5. White pawn at g4. White knight at f3 and white queen at h3. White pawn at b2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at b1, white bishop at c1, white king at e1, white bishop at f1 and white rook at h1. White kingside is the only castle move available. Half move number is 3. Full move number is 20. White to move.