r2k4/pp3p1p/n2p3r/1qpK1pp1/1PP5/NQ2PPP1/P2P4/bRB3N1 w - - 5 23
FEN state: r2k4/pp3p1p/n2p3r/1qpK1pp1/1PP5/NQ2PPP1/P2P4/bRB3N1 w - - 5 23 ; Best move: c4b5
The current state of the chess board is: Black rook at a8 and black king at d8. Black pawn at a7, black pawn at b7, black pawn at f7 and black pawn at h7. Black knight at a6, black pawn at d6 and black rook at h6. Black queen at b5, black pawn at c5, white king at d5, black pawn at f5 and black pawn at g5. White pawn at b4 and white pawn at c4. White knight at a3, white queen at b3, white pawn at e3, white pawn at f3 and white pawn at g3. White pawn at a2 and white pawn at d2. Black bishop at a1, white rook at b1, white bishop at c1 and white knight at g1. Both players have exhausted their castles. Half move number is 5. Full move number is 23. White to move.