r4bnr/p3k2p/bpnpppp1/1B3QP1/3PP3/NPBK1P2/P1P1q3/1R4NR w - - 1 21
FEN state: r4bnr/p3k2p/bpnpppp1/1B3QP1/3PP3/NPBK1P2/P1P1q3/1R4NR w - - 1 21 ; Best move: g1e2
The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black king at e7 and black pawn at h7. Black bishop at a6, black pawn at b6, black knight at c6, black pawn at d6, black pawn at e6, black pawn at f6 and black pawn at g6. White bishop at b5, white queen at f5 and white pawn at g5. White pawn at d4 and white pawn at e4. White knight at a3, white pawn at b3, white bishop at c3, white king at d3 and white pawn at f3. White pawn at a2, white pawn at c2 and black queen at e2. White rook at b1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. White to move.