1n3b1r/r1p2k1p/4p2n/pp6/1PP1bpp1/B1N5/P2RKPBP/4Q2R w - - 0 21
FEN state: 1n3b1r/r1p2k1p/4p2n/pp6/1PP1bpp1/B1N5/P2RKPBP/4Q2R w - - 0 21 ; Best move: c3e4
The current state of the chess board is: Black knight at b8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at c7, black king at f7 and black pawn at h7. Black pawn at e6 and black knight at h6. Black pawn at a5 and black pawn at b5. White pawn at b4, white pawn at c4, black bishop at e4, black pawn at f4 and black pawn at g4. White bishop at a3 and white knight at c3. White pawn at a2, white rook at d2, white king at e2, white pawn at f2, white bishop at g2 and white pawn at h2. White queen at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. White to move.