r1bk1bnr/1p1q2pp/p2ppp2/P3n1P1/2pP1K2/1RP2P1P/4P3/BN1Q1BNR b - - 0 23
FEN state: r1bk1bnr/1p1q2pp/p2ppp2/P3n1P1/2pP1K2/1RP2P1P/4P3/BN1Q1BNR b - - 0 23 ; Best move: c4b3
The current state of the chess board is: Black rook at a8, black bishop at c8, black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black queen at d7, black pawn at g7 and black pawn at h7. Black pawn at a6, black pawn at d6, black pawn at e6 and black pawn at f6. White pawn at a5, black knight at e5 and white pawn at g5. Black pawn at c4, white pawn at d4 and white king at f4. White rook at b3, white pawn at c3, white pawn at f3 and white pawn at h3. White pawn at e2. White bishop at a1, white knight at b1, white queen at d1, white bishop at f1, white knight at g1 and white rook at h1. Both players have exhausted their castles. Half move number is 0. Full move number is 23. Black to move.