rn2q1nr/1bpk2p1/8/p3p2p/Pb2p2P/3BPPP1/1PPP2K1/R1BQ2NR w - - 4 23
FEN state: rn2q1nr/1bpk2p1/8/p3p2p/Pb2p2P/3BPPP1/1PPP2K1/R1BQ2NR w - - 4 23 ; Best move: d3b5
The current state of the chess board is: Black rook at a8, black knight at b8, black queen at e8, black knight at g8 and black rook at h8. Black bishop at b7, black pawn at c7, black king at d7 and black pawn at g7. Black pawn at a5, black pawn at e5 and black pawn at h5. White pawn at a4, black bishop at b4, black pawn at e4 and white pawn at h4. White bishop at d3, white pawn at e3, white pawn at f3 and white pawn at g3. White pawn at b2, white pawn at c2, white pawn at d2 and white king at g2. White rook at a1, white bishop at c1, white queen at d1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 23. White to move.