r1bq1br1/p4kp1/n3p1np/PppP1p2/4P1P1/N6B/1P1PNPRP/1RBQK3 b - - 0 13
FEN state: r1bq1br1/p4kp1/n3p1np/PppP1p2/4P1P1/N6B/1P1PNPRP/1RBQK3 b - - 0 13 ; Best move: f5e4
The current state of the chess board is: Black rook at a8, black bishop at c8, black queen at d8, black bishop at f8 and black rook at g8. Black pawn at a7, black king at f7 and black pawn at g7. Black knight at a6, black pawn at e6, black knight at g6 and black pawn at h6. White pawn at a5, black pawn at b5, black pawn at c5, white pawn at d5 and black pawn at f5. White pawn at e4 and white pawn at g4. White knight at a3 and white bishop at h3. White pawn at b2, white pawn at d2, white knight at e2, white pawn at f2, white rook at g2 and white pawn at h2. White rook at b1, white bishop at c1, white queen at d1 and white king at e1. Both players have exhausted their castles. Half move number is 0. Full move number is 13. Black to move.