r1bq2kr/R2p2pp/5p2/n1pn4/1P2p2P/1PN2P1R/1BPbPQB1/5KN1 b - - 5 25
FEN state: r1bq2kr/R2p2pp/5p2/n1pn4/1P2p2P/1PN2P1R/1BPbPQB1/5KN1 b - - 5 25 ; Best move: e4e3
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black king at g8 and black rook at h8. White rook at a7, black pawn at d7, black pawn at g7 and black pawn at h7. Black pawn at f6. Black knight at a5, black pawn at c5 and black knight at d5. White pawn at b4, black pawn at e4 and white pawn at h4. White pawn at b3, white knight at c3, white pawn at f3 and white rook at h3. White bishop at b2, white pawn at c2, black bishop at d2, white pawn at e2, white queen at f2 and white bishop at g2. White king at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 5. Full move number is 25. Black to move.