1n2nb1r/r1pb3p/p2kp1p1/Pp4NP/2Ppp3/N2P1PP1/P2B1K2/R2B1Q1R b - - 0 23
FEN state: 1n2nb1r/r1pb3p/p2kp1p1/Pp4NP/2Ppp3/N2P1PP1/P2B1K2/R2B1Q1R b - - 0 23 ; Best move: e4e3
The current state of the chess board is: Black knight at b8, black knight at e8, black bishop at f8 and black rook at h8. Black rook at a7, black pawn at c7, black bishop at d7 and black pawn at h7. Black pawn at a6, black king at d6, black pawn at e6 and black pawn at g6. White pawn at a5, black pawn at b5, white knight at g5 and white pawn at h5. White pawn at c4, black pawn at d4 and black pawn at e4. White knight at a3, white pawn at d3, white pawn at f3 and white pawn at g3. White pawn at a2, white bishop at d2 and white king at f2. White rook at a1, white bishop at d1, white queen at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. Black to move.