1n3Nnr/r3qkp1/5p1p/pbPpp3/2p3P1/NPB2P1B/P2QP2P/R3K2R w - - 5 21
FEN state: 1n3Nnr/r3qkp1/5p1p/pbPpp3/2p3P1/NPB2P1B/P2QP2P/R3K2R w - - 5 21 ; Best move: d2d5
The current state of the chess board is: Black knight at b8, white knight at f8, black knight at g8 and black rook at h8. Black rook at a7, black queen at e7, black king at f7 and black pawn at g7. Black pawn at f6 and black pawn at h6. Black pawn at a5, black bishop at b5, white pawn at c5, black pawn at d5 and black pawn at e5. Black pawn at c4 and white pawn at g4. White knight at a3, white pawn at b3, white bishop at c3, white pawn at f3 and white bishop at h3. White pawn at a2, white queen at d2, white pawn at e2 and white pawn at h2. White rook at a1, white king at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 21. White to move.