1nb1kbnr/1p5p/r1ppp3/3q1pp1/PpN5/R3PP1P/2PP2P1/2BQKBNR w Kk - 2 18
FEN state: 1nb1kbnr/1p5p/r1ppp3/3q1pp1/PpN5/R3PP1P/2PP2P1/2BQKBNR w Kk - 2 18 ; Best move: a3a1
The current state of the chess board is: Black knight at b8, black bishop at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7 and black pawn at h7. Black rook at a6, black pawn at c6, black pawn at d6 and black pawn at e6. Black queen at d5, black pawn at f5 and black pawn at g5. White pawn at a4, black pawn at b4 and white knight at c4. White rook at a3, white pawn at e3, white pawn at f3 and white pawn at h3. White pawn at c2, white pawn at d2 and white pawn at g2. White bishop at c1, white queen at d1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside and black kingside castles are available. Half move number is 2. Full move number is 18. White to move.