r3kbnr/pp1b1p1p/6p1/2np4/1qpPPB1P/P1P3R1/1P4P1/1R1QKBN1 w kq - 3 20
FEN state: r3kbnr/pp1b1p1p/6p1/2np4/1qpPPB1P/P1P3R1/1P4P1/1R1QKBN1 w kq - 3 20 ; Best move: a3b4
The current state of the chess board is: Black rook at a8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black bishop at d7, black pawn at f7 and black pawn at h7. Black pawn at g6. Black knight at c5 and black pawn at d5. Black queen at b4, black pawn at c4, white pawn at d4, white pawn at e4, white bishop at f4 and white pawn at h4. White pawn at a3, white pawn at c3 and white rook at g3. White pawn at b2 and white pawn at g2. White rook at b1, white queen at d1, white king at e1, white bishop at f1 and white knight at g1. Black kingside and black queenside castles are available. Half move number is 3. Full move number is 20. White to move.