r1b3nr/p1p1b3/2qpkp1p/3Np1pP/1pP1P3/3B1n2/1PQP1P1R/1RBK4 w - - 4 23
FEN state: r1b3nr/p1p1b3/2qpkp1p/3Np1pP/1pP1P3/3B1n2/1PQP1P1R/1RBK4 w - - 4 23 ; Best move: c4c5
The current state of the chess board is: Black rook at a8, black bishop at c8, black knight at g8 and black rook at h8. Black pawn at a7, black pawn at c7 and black bishop at e7. Black queen at c6, black pawn at d6, black king at e6, black pawn at f6 and black pawn at h6. White knight at d5, black pawn at e5, black pawn at g5 and white pawn at h5. Black pawn at b4, white pawn at c4 and white pawn at e4. White bishop at d3 and black knight at f3. White pawn at b2, white queen at c2, white pawn at d2, white pawn at f2 and white rook at h2. White rook at b1, white bishop at c1 and white king at d1. Both players have exhausted their castles. Half move number is 4. Full move number is 23. White to move.