r4b2/1bP1Ppp1/n3k2r/pp6/2P2PPp/1P5B/PQ1K3P/RNB3NR w - - 1 21
FEN state: r4b2/1bP1Ppp1/n3k2r/pp6/2P2PPp/1P5B/PQ1K3P/RNB3NR w - - 1 21 ; Best move: e7f8q
The current state of the chess board is: Black rook at a8 and black bishop at f8. Black bishop at b7, white pawn at c7, white pawn at e7, black pawn at f7 and black pawn at g7. Black knight at a6, black king at e6 and black rook at h6. Black pawn at a5 and black pawn at b5. White pawn at c4, white pawn at f4, white pawn at g4 and black pawn at h4. White pawn at b3 and white bishop at h3. White pawn at a2, white queen at b2, white king at d2 and white pawn at h2. White rook at a1, white knight at b1, white bishop at c1, 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.