r4b1r/pb1k1p2/2ppq2p/2n3RQ/1P3P2/1RPPP3/P2K2P1/2B2BN1 w - - 2 20
FEN state: r4b1r/pb1k1p2/2ppq2p/2n3RQ/1P3P2/1RPPP3/P2K2P1/2B2BN1 w - - 2 20 ; Best move: b4c5
The current state of the chess board is: Black rook at a8, black bishop at f8 and black rook at h8. Black pawn at a7, black bishop at b7, black king at d7 and black pawn at f7. Black pawn at c6, black pawn at d6, black queen at e6 and black pawn at h6. Black knight at c5, white rook at g5 and white queen at h5. White pawn at b4 and white pawn at f4. White rook at b3, white pawn at c3, white pawn at d3 and white pawn at e3. White pawn at a2, white king at d2 and white pawn at g2. White bishop at c1, white bishop at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 2. Full move number is 20. White to move.