1rb4r/1q1pkppp/1pnb2Pn/p7/2PP1p1P/PR5N/RP2PP2/3QKB2 w - - 3 18
FEN state: 1rb4r/1q1pkppp/1pnb2Pn/p7/2PP1p1P/PR5N/RP2PP2/3QKB2 w - - 3 18 ; Best move: c4c5
The current state of the chess board is: Black rook at b8, black bishop at c8 and black rook at h8. Black queen at b7, black pawn at d7, black king at e7, black pawn at f7, black pawn at g7 and black pawn at h7. Black pawn at b6, black knight at c6, black bishop at d6, white pawn at g6 and black knight at h6. Black pawn at a5. White pawn at c4, white pawn at d4, black pawn at f4 and white pawn at h4. White pawn at a3, white rook at b3 and white knight at h3. White rook at a2, white pawn at b2, white pawn at e2 and white pawn at f2. White queen at d1, white king at e1 and white bishop at f1. Both players have exhausted their castles. Half move number is 3. Full move number is 18. White to move.