1rbqkr2/p1np1ppp/1ppb4/4p3/4PN1P/P1PB1P2/RP1P2P1/1NBQK2R b - - 1 13
FEN state: 1rbqkr2/p1np1ppp/1ppb4/4p3/4PN1P/P1PB1P2/RP1P2P1/1NBQK2R b - - 1 13 ; Best move: e5f4
The current state of the chess board is: Black rook at b8, black bishop at c8, black queen at d8, black king at e8 and black rook at f8. Black pawn at a7, black knight at c7, black pawn at d7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6, black pawn at c6 and black bishop at d6. Black pawn at e5. White pawn at e4, white knight at f4 and white pawn at h4. White pawn at a3, white pawn at c3, white bishop at d3 and white pawn at f3. White rook at a2, white pawn at b2, white pawn at d2 and white pawn at g2. White knight at b1, white bishop at c1, white queen at d1, white king at e1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 13. Black to move.