2bk1bnr/1p1np3/5p1p/r3P1p1/1pp3P1/2P1Q3/P2B1P1P/R2NK1NR w KQ - 4 18
FEN state: 2bk1bnr/1p1np3/5p1p/r3P1p1/1pp3P1/2P1Q3/P2B1P1P/R2NK1NR w KQ - 4 18 ; Best move: g1f3
The current state of the chess board is: Black bishop at c8, black king at d8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black knight at d7 and black pawn at e7. Black pawn at f6 and black pawn at h6. Black rook at a5, white pawn at e5 and black pawn at g5. Black pawn at b4, black pawn at c4 and white pawn at g4. White pawn at c3 and white queen at e3. White pawn at a2, white bishop at d2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at d1, white king at e1, white knight at g1 and white rook at h1. White kingside and white queenside castles are available. Half move number is 4. Full move number is 18. White to move.