rn5r/1b1pn1k1/1pp2ppp/p3p1q1/P1P1PPP1/bPNP3N/3Q3P/R2K1BR1 w - - 9 21
FEN state: rn5r/1b1pn1k1/1pp2ppp/p3p1q1/P1P1PPP1/bPNP3N/3Q3P/R2K1BR1 w - - 9 21 ; Best move: f4g5
The current state of the chess board is: Black rook at a8, black knight at b8 and black rook at h8. Black bishop at b7, black pawn at d7, black knight at e7 and black king at g7. Black pawn at b6, black pawn at c6, black pawn at f6, black pawn at g6 and black pawn at h6. Black pawn at a5, black pawn at e5 and black queen at g5. White pawn at a4, white pawn at c4, white pawn at e4, white pawn at f4 and white pawn at g4. Black bishop at a3, white pawn at b3, white knight at c3, white pawn at d3 and white knight at h3. White queen at d2 and white pawn at h2. White rook at a1, white king at d1, white bishop at f1 and white rook at g1. Both players have exhausted their castles. Half move number is 9. Full move number is 21. White to move.