1r2nr1k/p4ppB/np2bP2/2pp4/2P2B2/2bK1NP1/PQ2PP1P/RN5R w - - 1 18
FEN state: 1r2nr1k/p4ppB/np2bP2/2pp4/2P2B2/2bK1NP1/PQ2PP1P/RN5R w - - 1 18 ; Best move: b1c3
The current state of the chess board is: Black rook at b8, black knight at e8, black rook at f8 and black king at h8. Black pawn at a7, black pawn at f7, black pawn at g7 and white bishop at h7. Black knight at a6, black pawn at b6, black bishop at e6 and white pawn at f6. Black pawn at c5 and black pawn at d5. White pawn at c4 and white bishop at f4. Black bishop at c3, white king at d3, white knight at f3 and white pawn at g3. White pawn at a2, white queen at b2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1 and white rook at h1. Both players have exhausted their castles. Half move number is 1. Full move number is 18. White to move.