r2N3r/1pp4p/n4kpn/p2p1P2/1bPPP2q/3K4/P1Q1P2P/RNB2B1R w - - 0 21
FEN state: r2N3r/1pp4p/n4kpn/p2p1P2/1bPPP2q/3K4/P1Q1P2P/RNB2B1R w - - 0 21 ; Best move: c4d5
The current state of the chess board is: Black rook at a8, white knight at d8 and black rook at h8. Black pawn at b7, black pawn at c7 and black pawn at h7. Black knight at a6, black king at f6, black pawn at g6 and black knight at h6. Black pawn at a5, black pawn at d5 and white pawn at f5. Black bishop at b4, white pawn at c4, white pawn at d4, white pawn at e4 and black queen at h4. White king at d3. White pawn at a2, white queen at c2, white pawn at e2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.