r2q1bnr/1pp1k2p/p1Bpb1p1/6p1/P1n1PB2/2P3PP/5P1R/RN2K3 w - - 0 21
FEN state: r2q1bnr/1pp1k2p/p1Bpb1p1/6p1/P1n1PB2/2P3PP/5P1R/RN2K3 w - - 0 21 ; Best move: f4g5
The current state of the chess board is: Black rook at a8, black queen at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black pawn at c7, black king at e7 and black pawn at h7. Black pawn at a6, white bishop at c6, black pawn at d6, black bishop at e6 and black pawn at g6. Black pawn at g5. White pawn at a4, black knight at c4, white pawn at e4 and white bishop at f4. White pawn at c3, white pawn at g3 and white pawn at h3. White pawn at f2 and white rook at h2. White rook at a1, white knight at b1 and white king at e1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.