2r1kbnr/1p1np1pp/p3bp2/q1p5/PP1N1P1P/N2p4/3KP1P1/R1BQ1B1R w k - 0 12
FEN state: 2r1kbnr/1p1np1pp/p3bp2/q1p5/PP1N1P1P/N2p4/3KP1P1/R1BQ1B1R w k - 0 12 ; Best move: b4a5
The current state of the chess board is: Black rook at c8, black king at e8, black bishop at f8, black knight at g8 and black rook at h8. Black pawn at b7, black knight at d7, black pawn at e7, black pawn at g7 and black pawn at h7. Black pawn at a6, black bishop at e6 and black pawn at f6. Black queen at a5 and black pawn at c5. White pawn at a4, white pawn at b4, white knight at d4, white pawn at f4 and white pawn at h4. White knight at a3 and black pawn at d3. White king at d2, white pawn at e2 and white pawn at g2. White rook at a1, white bishop at c1, white queen at d1, white bishop at f1 and white rook at h1. Black kingside is the only castle move available. Half move number is 0. Full move number is 12. White to move.