4rbnr/pp1bp3/n5k1/P1pp2pp/N2P3P/4PK2/1PP1NP1R/R1BQ4 b - - 2 21
FEN state: 4rbnr/pp1bp3/n5k1/P1pp2pp/N2P3P/4PK2/1PP1NP1R/R1BQ4 b - - 2 21 ; Best move: e7e5
The current state of the chess board is: Black rook at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at b7, black bishop at d7 and black pawn at e7. Black knight at a6 and black king at g6. White pawn at a5, black pawn at c5, black pawn at d5, black pawn at g5 and black pawn at h5. White knight at a4, white pawn at d4 and white pawn at h4. White pawn at e3 and white king at f3. White pawn at b2, white pawn at c2, white knight at e2, white pawn at f2 and white rook at h2. White rook at a1, white bishop at c1 and white queen at d1. Both players have exhausted their castles. Half move number is 2. Full move number is 21. Black to move.