2rk2r1/1p4bp/1npp4/pNqRpp1n/Q1P5/2K1P2P/PP2BPP1/6NR w - - 4 20
FEN state: 2rk2r1/1p4bp/1npp4/pNqRpp1n/Q1P5/2K1P2P/PP2BPP1/6NR w - - 4 20 ; Best move: a4a5
The current state of the chess board is: Black rook at c8, black king at d8 and black rook at g8. Black pawn at b7, black bishop at g7 and black pawn at h7. Black knight at b6, black pawn at c6 and black pawn at d6. Black pawn at a5, white knight at b5, black queen at c5, white rook at d5, black pawn at e5, black pawn at f5 and black knight at h5. White queen at a4 and white pawn at c4. White king at c3, white pawn at e3 and white pawn at h3. White pawn at a2, white pawn at b2, white bishop at e2, white pawn at f2 and white pawn at g2. White knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 20. White to move.