r4bnr/pb2p1pp/n1pq1B2/1pkp1p2/P1P5/1Q1P2P1/1P2PP1P/RN2KBNR w K - 4 12
FEN state: r4bnr/pb2p1pp/n1pq1B2/1pkp1p2/P1P5/1Q1P2P1/1P2PP1P/RN2KBNR w K - 4 12 ; Best move: a4b5
The current state of the chess board is: Black rook at a8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at a7, black bishop at b7, black pawn at e7, black pawn at g7 and black pawn at h7. Black knight at a6, black pawn at c6, black queen at d6 and white bishop at f6. Black pawn at b5, black king at c5, black pawn at d5 and black pawn at f5. White pawn at a4 and white pawn at c4. White queen at b3, white pawn at d3 and white pawn at g3. White pawn at b2, white pawn at e2, white pawn at f2 and white pawn at h2. White rook at a1, white knight at b1, white king at e1, white bishop at f1, white knight at g1 and white rook at h1. White kingside is the only castle move available. Half move number is 4. Full move number is 12. White to move.