1rb1qbnr/1p2k3/n1pp4/3Pppp1/3BP2p/p1NB1PPP/PPPK4/R1Q3NR b - - 5 21
FEN state: 1rb1qbnr/1p2k3/n1pp4/3Pppp1/3BP2p/p1NB1PPP/PPPK4/R1Q3NR b - - 5 21 ; Best move: e5d4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7 and black king at e7. Black knight at a6, black pawn at c6 and black pawn at d6. White pawn at d5, black pawn at e5, black pawn at f5 and black pawn at g5. White bishop at d4, white pawn at e4 and black pawn at h4. Black pawn at a3, white knight at c3, white bishop at d3, white pawn at f3, white pawn at g3 and white pawn at h3. White pawn at a2, white pawn at b2, white pawn at c2 and white king at d2. White rook at a1, white queen at c1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 5. Full move number is 21. Black to move.