4kbr1/p3ppp1/b1r2n2/qpppn1pP/1P3P2/B2PPN2/P1P1K2R/RNQ2B2 b - - 1 21
FEN state: 4kbr1/p3ppp1/b1r2n2/qpppn1pP/1P3P2/B2PPN2/P1P1K2R/RNQ2B2 b - - 1 21 ; Best move: e5f3
The current state of the chess board is: Black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7, black pawn at e7, black pawn at f7 and black pawn at g7. Black bishop at a6, black rook at c6 and black knight at f6. Black queen at a5, black pawn at b5, black pawn at c5, black pawn at d5, black knight at e5, black pawn at g5 and white pawn at h5. White pawn at b4 and white pawn at f4. White bishop at a3, white pawn at d3, white pawn at e3 and white knight at f3. White pawn at a2, white pawn at c2, white king at e2 and white rook at h2. White rook at a1, white knight at b1, white queen at c1 and white bishop at f1. Both players have exhausted their castles. Half move number is 1. Full move number is 21. Black to move.