r2n1b2/1bk3pr/p1qp3n/2pPp1Np/QP3pP1/2N2P2/PB2P2P/3RKB1R w - - 4 25
FEN state: r2n1b2/1bk3pr/p1qp3n/2pPp1Np/QP3pP1/2N2P2/PB2P2P/3RKB1R w - - 4 25 ; Best move: d5c6
The current state of the chess board is: Black rook at a8, black knight at d8 and black bishop at f8. Black bishop at b7, black king at c7, black pawn at g7 and black rook at h7. Black pawn at a6, black queen at c6, black pawn at d6 and black knight at h6. Black pawn at c5, white pawn at d5, black pawn at e5, white knight at g5 and black pawn at h5. White queen at a4, white pawn at b4, black pawn at f4 and white pawn at g4. White knight at c3 and white pawn at f3. White pawn at a2, white bishop at b2, white pawn at e2 and white pawn at h2. White rook at d1, white king at e1, white bishop at f1 and white rook at h1. Both players have exhausted their castles. Half move number is 4. Full move number is 25. White to move.