rnb1kbr1/p3n3/2q2pp1/1p1p3p/PPBP2P1/2B2P1P/2P3KR/1N1Q1RN1 b - - 4 23
FEN state: rnb1kbr1/p3n3/2q2pp1/1p1p3p/PPBP2P1/2B2P1P/2P3KR/1N1Q1RN1 b - - 4 23 ; Best move: c6c4
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black king at e8, black bishop at f8 and black rook at g8. Black pawn at a7 and black knight at e7. Black queen at c6, black pawn at f6 and black pawn at g6. Black pawn at b5, black pawn at d5 and black pawn at h5. White pawn at a4, white pawn at b4, white bishop at c4, white pawn at d4 and white pawn at g4. White bishop at c3, white pawn at f3 and white pawn at h3. White pawn at c2, white king at g2 and white rook at h2. White knight at b1, white queen at d1, white rook at f1 and white knight at g1. Both players have exhausted their castles. Half move number is 4. Full move number is 23. Black to move.