r5n1/pqpbk2r/n6p/3pp1p1/1b2Pp2/NBQP1K2/PPP2PPP/R1B1R1N1 w - - 4 21
FEN state: r5n1/pqpbk2r/n6p/3pp1p1/1b2Pp2/NBQP1K2/PPP2PPP/R1B1R1N1 w - - 4 21 ; Best move: c3e5
The current state of the chess board is: Black rook at a8 and black knight at g8. Black pawn at a7, black queen at b7, black pawn at c7, black bishop at d7, black king at e7 and black rook at h7. Black knight at a6 and black pawn at h6. Black pawn at d5, black pawn at e5 and black pawn at g5. Black bishop at b4, white pawn at e4 and black pawn at f4. White knight at a3, white bishop at b3, white queen at c3, white pawn at d3 and white king at f3. White pawn at a2, white pawn at b2, white pawn at c2, white pawn at f2, white pawn at g2 and white pawn at h2. White rook at a1, white bishop at c1, white rook at e1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 21. White to move.