rnbq2n1/pp1k3r/2p1pppp/P7/3P4/4bPP1/RPPNP2P/2BQK1NR w K - 4 12
FEN state: rnbq2n1/pp1k3r/2p1pppp/P7/3P4/4bPP1/RPPNP2P/2BQK1NR w K - 4 12 ; Best move: a2a3
The current state of the chess board is: Black rook at a8, black knight at b8, black bishop at c8, black queen at d8 and black knight at g8. Black pawn at a7, black pawn at b7, black king at d7 and black rook at h7. Black pawn at c6, black pawn at e6, black pawn at f6, black pawn at g6 and black pawn at h6. White pawn at a5. White pawn at d4. Black bishop at e3, white pawn at f3 and white pawn at g3. White rook at a2, white pawn at b2, white pawn at c2, white knight at d2, white pawn at e2 and white pawn at h2. White bishop at c1, white queen at d1, white king at e1, 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.