2r1kb2/p3pp1r/1p2nPpp/1bppP2n/2P4P/PP2K3/3NP1P1/R1B1QBNR b - - 0 21
FEN state: 2r1kb2/p3pp1r/1p2nPpp/1bppP2n/2P4P/PP2K3/3NP1P1/R1B1QBNR b - - 0 21 ; Best move: e7f6
The current state of the chess board is: Black rook at c8, black king at e8 and black bishop at f8. Black pawn at a7, black pawn at e7, black pawn at f7 and black rook at h7. Black pawn at b6, black knight at e6, white pawn at f6, black pawn at g6 and black pawn at h6. Black bishop at b5, black pawn at c5, black pawn at d5, white pawn at e5 and black knight at h5. White pawn at c4 and white pawn at h4. White pawn at a3, white pawn at b3 and white king at e3. White knight at d2, white pawn at e2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at e1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 21. Black to move.