r1b1kb1r/pppqp3/1N1p3p/Bn3pp1/7P/PP5N/1RPPPPPR/3QKn2 w q - 0 19
FEN state: r1b1kb1r/pppqp3/1N1p3p/Bn3pp1/7P/PP5N/1RPPPPPR/3QKn2 w q - 0 19 ; Best move: b6d7
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 a7, black pawn at b7, black pawn at c7, black queen at d7 and black pawn at e7. White knight at b6, black pawn at d6 and black pawn at h6. White bishop at a5, black knight at b5, black pawn at f5 and black pawn at g5. White pawn at h4. White pawn at a3, white pawn at b3 and white knight at h3. White rook at b2, white pawn at c2, white pawn at d2, white pawn at e2, white pawn at f2, white pawn at g2 and white rook at h2. White queen at d1, white king at e1 and black knight at f1. Black queenside is the only castle move available. Half move number is 0. Full move number is 19. White to move.